The following strings are propositional formulas under the signature:
(i)both 0-place connectives are formulas
(ii)for any binary connective ⨀, if f and g are formulas then (f⊙g) is a formula.
What is propositional formula?A propositional formula is a particular kind of syntactic formula that is well-formed and has a truth value in propositional logic. A propositional formula yields a distinct truth value when all of the variables' values are known. A propositional formula may alternatively be referred to as a phrase, a propositional expression, or a sentential formula.
Simple statements like "five is greater than three" or propositional variables like p and q are combined to build a propositional formula using connectives or logical operators like NOT, AND, OR, or IMPLIES.
The term "proposition" is frequently used in mathematics to refer to a propositional formula, but in reality, a propositional formula is a formal expression that signifies a proposition.
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4(7) is ___ units from 4, in the _______ direction.
Answer:
4(7) is 7 units from 4, in the forward direction.
Step-by-step explanation:
Solve: 5x - 7x + 6 = -2(x - 3).
A 0
B 3/4
C 2
D no solution
E infinitely many solutions
I will give 80 points
Answer: E: Infinitely many solutions
Step-by-step explanation:
Starting with 5x - 7x + 6, let's combine like terms.
5x - 7x is -2x.
Thus, we have -2x + 6 = -2(x-3)
Using the distributive property for the right side, we multiply -2 * x, and get -2x, and -2 * -3 and get +6.
Now we have -2x + 6 = -2x + 6. We have the same equation here, and know that there is infinitely many solutions here off the bat.
For sake of computations, let's solve and show our work.
Subtracting 6 from both sides, we have -2x = -2x.
Adding 2x to both sides, we get 0 = 0.
Thus, we have infinitely many solutions.
a. no, the program is not statistically significant because the results are unlikely to occur by chance. b. no, the program is not statistically significant because the results are likely to occur by chance. your answer is correct.c. yes, the program is statistically significant because the results are likely to occur by chance. d. yes, the program is statistically significant because the results are unlikely to occur by chance. part 2
The weight loss program is not statistically significant because the results are likely to occur by chance. (Option D)
What is statistical significance?Statistical significance can be used to determine whether a result is more likely the consequence of chance or an important element. Significant results simply imply that you can be sure they are true rather than that you were fortunate (or unfortunate) in the sample you used.Now,
In the given case, 7 subjects have lost around 43 lbs and there is 22% chance of getting these results with a diet that has no effect.In accordance to the definition of statistical significance, it implies that the given program is more likely the consequence of chance.As a result, we can say that in such case, the result occur by chance, i.e., they are followed by a specific probability in terms of occurrence.Hence, the given program is not statistically significant because the results are likely to occur by chance. (Option D)
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(COMPLETE QUESTION:
Determine whether the results below appear to have statistical significance, and also determine whether the results have practical significance.
In a study of a weight loss program, 7 subjects lost an average of 43 lbs. It is found that there is about a 22% chance of getting such results with a diet that has no effect.
Does the weight loss program have statistical significance?
A.No, the program is not statistically significant because the results are unlikely to occur by chance.
B.Yes, the program is statistically significant because the results are unlikely to occur by chance.
C.Yes, the program is statistically significant because the results are likely to occur by chance.
D.No, the program is not statistically significant because the results are likely to occur by chance.)
The approximate weights of two animals are 5.36 x 10^4 lbs. and 6.2 x 10^4 lbs. Find the total weight of the two animals. Write the final answer in scientific notation with the correct number of significant digits.
Answer: The total weights of the two animals is 11. 92 × 10² Ibs
Step-by-step explanation:
Look at both pictures before answering
only answer if you are sure it's correct
if it's not correct I'm reporting :D
answer quickly bc I'm timed
you get 5 stars, nice comment, heart, and brainliest if you are the first corret answer
TY FOR READING THIS OMG UR SO NICE <3
Answer: A
Step-by-step explanation:
A. 2.6x 10^-7
Answer:
a
Step-by-step explanation:
because you move the decimal 7 times to the right to put it into scientific notation
T V is tangent to the circle, and R and S are points on the circle. What is the value of x to the nearest tenth?
A 7.6
B 6.4
C 5.7
D 4.8
By applying the Tangent Secant Theorem to this circle, the value of x to the nearest tenth is equal to: A. 5.7.
What is the Tangent Secant Theorem?The Tangent Secant Theorem states that if a secant segment and a tangent segment are drawn to an external point outside a circle, then, the product of the length of the external segment and the secant segment's length would be equal to the square of the tangent segment's length.
By applying the Tangent Secant Theorem to this circle, we have:
(x + x + 3) × x = 9²
(x + 3)x = 81
2x² + 3x = 81
2x² + 3x - 81 = 0
Next, we would solve the quadratic equation by using the quadratic formula:
[tex]x = \frac{-b\; \pm \;\sqrt{b^2 - 4ac}}{2a}\\\\x = \frac{-3\; \pm \;\sqrt{3^2 - 4(2)(-81)}}{2 \times 2}\\\\x = \frac{-3\; \pm \;\sqrt{9 + 648}}{4}\\\\x = \frac{-3\; \pm \;\sqrt{657}}{4}[/tex]
x = 5.7 or -7.2
Since the line segment cannot be negative, the value of x to the nearest tenth is equal to 5.7.
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the points $(1,-2)$ and $(-4,10)$ are adjacent vertices of a square. what is the perimeter of the square?
Answer:
Use distance formula between these points to find length of one side of the square.....then multiply by 4 sides
sqrt( 5^2 + 12^2 ) = 13 units side length
Step-by-step explanation:
And i think you can go from there if not please ask me to do the rest for you
A. 5x=20
B. x=4
What formula is this?
Answer:
5 x 4=20
Step-by-step explanation:
the x is a smaller number to tell you how many 5's there are which x=4 so the are 4 5's but you have to times(multiple) the two numbers.
5x4
=20
Which inequality is true? Use the number line to help.
A number line going from negative 5 to positive 3 in increments of 1.
1.5 greater-than 2 and one-half
One-half greater-than 0.5
Negative 2.5 greater-than negative 1.5
Negative 3 and one-half greater-than negative 4.5
Answer:
Negative 2.5 greater-than negative 1.5
C
Step-by-step explanation:
-2.5 < -2
What are the arithmetic and geometric (answer in that order.) average returns for a stock with annual returns of 9.4 percent, 8.2 percent, -7.3 percent, 4.1 percent, and 9.5 percent?
The arithmetic and geometric average returns for a stock with annual returns of 9.4 percent, 8.2 percent, -7.3 percent, 4.1 percent, and 9.5 percent are 4.78% and 4.58% respectively.
What is a stock?The shares of ownership in a corporation or company that make up stock (also known as capital stock) in the financial world. A single share of stock represents a fractional ownership in the firm in relation to the entire number of shares (especially in American English, where the word "stocks" is also used to refer to shares). This typically entitles the shareholder (stockholder) to that portion of the company's earnings, proceeds from the sale of assets (after paying off all senior claims such as secured and unsecured debt), or voting rights, often allocating these in proportion to the amount of money each stockholder has invested.
Calculations:
Arithmetic returns=Total returns/Total time period
=(9.4+8.2-7.3+4.1+9.5)/5=4.78%
Geometric returns=[(1+rate1)(1+rate2)........(1+rate5)]^(1/5)
=[(1+0.094)(1+0.082)(1-0.073)(1+0.041)(1+0.095)]^(1/5)
=4.58%
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Selena Gomes owes her mom $5 she gets a part time job making $25/hour so she can pay her mom back & have her own money ?
Answer:
She will pay her mom back and have 20 dollars over if she works one hour.
Step-by-step explanation:
you are the administrator of an annual essay contest scholarship fund. this year a $52,000 college scholarship is being divided between the top two contestants so that the winner receives three times as much as the runner-up. how much will each contestant receive (in dollars)?
The amount each contestant will receive is as follows:
First position = $39,000Runner up = $13,000How to find the amount each contestant will receive?This year $52,000 college scholarship is being divided between the top two contestants .
Therefore,
Total amount to share to the top winners = 52000 dollars
The winner receives three times as much as the runner-up.
Therefore,
let
x = Amount received by the runner-up
Hence,
Amount the winner received = 3x
Therefore,
52,000 = 3x + x
52,000 = 4x
divide both sides by 4
4x / 4 = 52,000 / 4
x = 13000 dollars
Hence,
Amount the winner received =3(13000) = $39000
Amount received by the runner-up = $13,000
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Bob is interested in examining the relationship between the number of bedrooms in a home and its selling price. After downloading a valid data set from the internet, he calculates the correlation. The correlation value he calculates is only 0. 5. What does bob conclude?.
According to the calculations made by Bob after downloading and calculating the correlation value as 0.5 from a given data set, he concludes that as the number of bedrooms in a particular home increase there is an increase in the selling price of the bed.
This increase in the selling price due to the increase in the number of bedrooms can be explained with the help of the Law of Demand which states that as the demand for a certain product increases its cost or the selling price also increases.
Thus, when Bob calculates the correlation factor, he finds that as the number of bedrooms increases there is also a hike in the selling price. As there should be a surplus to fulfill the demand for bedrooms.
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HELP!! PLEASE!! DUE!! TODAY!! Joanna's vegetable Garden covers an area of 1/6 of a square mile. if the garden is 1/4 mile wide, how long does the garden stretch?
The garden will stretch by 2/3 miles.
Given that Garden covers an area of 1/6 of a square mile and the garde is 1/4 mile wide.
As we know, the garden is a rectangle shape.
Here, we will use the formula of area of rectangle.
Area of rectangle is equal to the product of length and breadth.
Area =l×b
Here, the give area=1/6 miles² and b=1/4 mile.
Now, we will substitute the values in the formula, we get
1/6=l×(1/4)
Further, we will multiply both sides with 4, we get
4/6=4l/4
4/6=l
Now, we will simplify the left hand side, we get
2/3=l
Hence, the length of garden stretch when garden covers an area of 1/6 of a square mile and 1/4 mile wide is 2/3 mile.
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helpppppppppp meeeeeeeeeee 50points
Answer:
1) 48
2)44
Step-by-step explanation:
Answer: 48 44 Are The Correct Answers
Step-by-step explanation:Hope This Helps
7 grade go math lesson 1.1 adding integers with a common sign
Adding integers with a common sign.
When adding two integers with a common sign, we just add the absolute value of the numbers and the resulting answer is marked with the same sign given in the question.
This question has two possible answers.
Possibility 1:
Both the integers are of positive sign. As a result, the resulting integer after addition is positive.
Example:
Let c = 45 and d = 53.
The sum of c and d is then
sum = c + d = 45 + 53 = 98
Possibility 2:
Both the integers are of negative sign. As a result, the resulting integer after addition is negative.
Example:
Assume c = -23 and d = -61.
The sum of c and d is then
sum = c + d = (-23) + (-61) = -(23 + 61) = -84
Hence, we have added integers with a common sign.
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rob drove to the nearest hospital with an average speed of v meters per seconds in t seconds. in terms of t, if he drives home on the same path, but with an average speed of 3v meters/second, how long is the return trip home?
The time used for the return trip is t / 3
How to find how long the trip took using the average speed?He drove to the nearest hospital with an average speed of v meters per seconds in t seconds.
Therefore,
average speed = distance / time
average speed = v
time used = t
d = distance covered
Therefore,
v = d / t
d = vt
He drives home on the same path, but with an average speed of 3v meters/second. The time used for the return trip is as follows:
Recall he covered the same distance.
Therefore,
average speed = 3v
time used for the return trip = x
d = distance
Hence,
3v = vt / x
x = vt / 3v
x = t / 3
Therefore, the time used for the return trip is t / 3
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what is the argument in the logarithmic function f(x)=log,4
Answer:
The expression or number to which the logarithm is operated on is called the argument. From the mathematical expression (x=logbn) ( x = l o g b n ) , n is the argument of the logarithm. The argument of a log function is always positive and should not be equal to 1. Hope this answer helps you.
Write a expression for the following problem.
Frank was going on a trip. He filled his car with 14 gallons of gas. He then drove to his destination and used 14 gallons of gas.
The expression is 14 - 14.
What is the expression?Subtraction is a mathematical operation that is used to determine the difference between two or more numbers. The sign used to depict subtraction is -. Other mathematical operations are addition, multiplication and division.
In order to determine the expression for the amount of gas left, we need to subtract the gas bought from the gas used: 14 - 14
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4x⁰y–²z³ divided by 4x
Answer:
Step-by-step explanation:
z³/xy²
Determine the truth value of the following conditional.
14. If two adjacent angles form a right angle, the, then angles are complementary
The statement that "If two adjacent angles form a right angle, then the angles are complementary", is true
How to determine the truth value of the conditional?The conditional is given as:
If two adjacent angles form a right angle, then the angles are complementary
As a general rule, complementary angles add up to 90 degrees i.e. right angle
This means that adjacent angles that add up to 90 degrees are complementary angles
Hence, the statement that "If two adjacent angles form a right angle, then the angles are complementary", is true
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Given the simultaneous equations 2x - y = 1 x² + 4ky + 5k = 0 where k is a non-zero constant show that x² + 8kx + k = 0. Given that x² + 8kx + k = 0 has equal roots.
a) [tex]x^{2}[/tex]+8kx +k=0, b) k=1/16
Here we have equation is 2x -y = 1 , [tex]x^{2}[/tex]+4ky+5k=0
To show that [tex]x^{2}[/tex] +8kx +k =0, we have two equation 2x-y=1 and [tex]x^{2}[/tex] +4ky + 5k=0
So from the equation 2x - y = 1 we can find y
Therefore y = 2x-1
Now we will put the value of y in the equation [tex]x^{2}[/tex] + 4ky + 5k =0
a) We have [tex]x^{2}[/tex] + 4k(2x-1) +5k=0
[tex]x^{2}[/tex] + 8kx -4k + 5k=0
[tex]x^{2}[/tex] +8kx +k=0
b) Now we have to find the value of k, and as from the question it is given that [tex]x^{2}[/tex] + 8kx +k =0 have equal roots
Therefore we get [tex]b^{2}[/tex] + 4ac = 0 is the condition of the linear equation in two equal roots.
So from this we have b= 8k, a = -1, c= k
[tex](8k)^{2}[/tex] - 4× 1×k =0
64[tex]k^{2}[/tex] -4k =0
4k(16k -1) =0
16k-1=0
k = 1/16
As k is a non-zero constant therefore we have not taken k=0. Therefore the value of k is 1/16.
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The complete question is:
Given the simultaneous equations 2x - y = 1 x² + 4ky + 5k = 0 where k is a non-zero constant a)show that x² + 8kx + k = 0. Given that x² + 8kx + k = 0 has equal roots., b) find the value of k.
Complete the sentence.
180g = ___ kg
180g = 0.180 kg or there are 0.180 kilograms in 180 grams.
In mathematics, conversion is the process of changing the value of one form or unit to another. It can be changing ones unit of length, weight, volume or even currency to another.
A conversion factor is a number used to change one set of units to another, either by multiplying or dividing.
The sentence states an equality between a units of weight in grams (g) and kilograms (kg).
From there, we can say that we are asked how many kilograms are there in 180 grams.
Converting grams to kilograms, we must use the conversion
1 g = 0.001 kg
180g = 180 (0.001) kg
180g = 0.180 kg
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Charlie watches as a pattern develops. In month 1, he starts with 3 guppy fish in his fish tank. The next month, he finds 6 guppy fish in his tank. The following month, he finds 11 guppy fish in his fish tank. Write an expression to model the pattern of guppy fish in Charlie’s fish tank. Use your expression to determine the number of guppy fish Charlie will observe in month 6.
In month 6, Charlie should observe
_______
The expression for modelling the pattern is n² + 2
Charlie can observe 38 guppy fish in month 6.
Given,
Number of guppy fish in Charlie's fish tank for the first time = 3
Number of guppy fish after one month = 6
Number of guppy fish in the following month = 11
The increasing pattern of guppy fish in the tank:
First month = 6 - 3 = 3
Second month = 11 - 6 = 5
So, we get that the number of guppy fish is increasing by odd numbers.
That is, 3, 6, 11, ........
Now, we have to find an expression for this pattern.
First term is 3.
That is, first term² + 2 = 1² + 2 = 3
Let n be the number of term.
n = 3
So, third term be:
3² + 2 = 9 + 2 = 11
So the expression for modelling the pattern is n² + 2
Now, we have to find the number of guppy fish in month 6.
That is,
n = 6
So,
n² + 2
6² + 2 = 36 + 2 = 38
That is, Charlie can observe 38 guppy fish in month 6.
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The circle x2 + y2 – 12x + 6y – 19 = 0 is translated one unit right and two units down. Which is the radius and center of the translated circle?
Center (6, –3); r = 8
Center (7, –5); r = 8
Center (6, –3); r = 64
Center (7, –5); r = 64
According to the question, the standard equation for the circle is [tex]x^{2} +y^{2} =r^{2}[/tex] in which the points (x, y) are the circumference point and 'r' is the radius of the circle.
The given expression for the circle is shown below:
[tex]x^{2} +y^{2} -12x+6y-19=0[/tex]
Bring same variable terms to one side and again re-write the expression:
[tex]x^{2} -12x+y^{2} +6y-19=0[/tex]
Now, to do factors of the given expression add and subtract 36,9 on both the sides
[tex]x^{2} -12x+36+y^{2} +6y+9=19+36+9[/tex]
Factors can be re-written as:
[tex](x-6)^{2} +(y+3)^{2}=64[/tex]
Comparing the calculated equation for the circle with the standard equation, we circle
The center points as (6,-3) and radius as (r = 8).
Hence, the correct answer is Center(6,-3), r = 8.
What is circle?
The circle can be defined as a symmetrical shaped. It has more than one points and all are at the equidistant from the center.
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Answer:
B
Center (7, –5); r = 8
Step-by-step explanation:
Determine whether the stated conclusion is valid based on the given information. If not, write invalid. Explain your reasoning.Given: An angle bisector divides an angle into two congruent angles. →KM is an angle bisector of ∠J K L .
Conclusion: ∠J K M ≅ ∠M K L battery is dead.
Answer:
Step-by-step explanation:
The answer to this my friend would be valid by the law of syllogism because our P is an angle bisector and our q is km. Our r is connecting to our p and says that they are congruent. Therefore if An angle bisector divides an angle into two congruent angles, then JKM and KML are congruent.
Hope this helps!
The Conclusion: ∠J K M ≅ ∠M K L is valid
Given data
An angle bisector divides an angle into two congruent angles. →KM is an angle bisector of ∠J K L .
What is bisection?Bisection is a term in mathematics that refers to dividing into two equal parts. This term is used more in the branch of mathematics called geometry.
Bisection can be done for an angle or line, for a line the given line is divided into two equal parts. Angle bisector divides the given angle into two equal parts to give two equal angles
When angle JKL is bisected by line KM. The line will lead to two angles which are:
∠J K M ∠M K LThese two angles are congruent and are represented by the formula below: ∠J K M ≅ ∠M K L
Hence we can say that the conclusion is valid
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Pleeeeeeeaaaaaaaaaase Help? I need asistance with how to solve an problem like this one.
Using the Triangle Midsegment Theorem, the value of x in the figure is: 4.
How to Apply the Triangle Midsegment Theorem?The Triangle Midsegment Theorem states that:
The length of segment DE = 1/2(the length of segment BC)
Given the following;
DE = x + 1
BC = 4x - 6
Substitute
x + 1 = 1/2(4x - 6)
2(x + 1) = 4x - 6
2x + 2 = 4x - 6
2x + 2 - 4x = 4x - 6 - 4x
-2x + 2 = - 6
-2x + 2 - 2= - 6 - 2
-2x = -8
-2x/-2 = -8/-2
x = 4
Thus, using the Triangle Midsegment Theorem, the value of x in the figure is: 4.
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Two hikers are 22 miles apart and walking toward each other. They meet in 4 hours. Find the rate of each hiker if one hiker walks 3.3 mph faster than the other.
Two hikers are 22 miles apart and walking toward the each other, they meet in 4 hours. The rate of each hiker if one hiker walks 3.3 mph faster than the other are 2.2mph, 2.2mph, 3.3mph.
What is a speed?Distance divided by time is the dimension of speed. The SI measure of speed is the meter per second (m/s), although the most widely used unit in daily life is the kilometer per hour (km/h), or miles per hour in the US and the UK (mph). The knot is a popular choice for air and sea travel.
The instantaneous speed serves as the upper bound of the average speed as the duration of the time period gets closer to 0. The distance traveled by an object during a period of time divided by the length of the period gives the average speed of an object throughout that period. Velocity and speed are not the same thing.
Time divided by distance are the speed-related metrics. The kilometer per hour (km/h), or miles per hour in the US and UK, is the unit of speed that is most frequently used in daily life. The meter per second (m/s) is the metric unit of speed (mph). The knot is often used in air and sea transportation.
Since the hikers are moving at varying speeds, they collide in a location other than the center.
Let the distance travelled by Hiker A (slower) be x at speed s.
So, the distance travelled by Hiker B (faster) is (22 - x) at a speed (s + 1.1).
s = x / 4
s + 1.1 = 22 - x / 4
After resolving equations 1 and 2, we obtain:
x = 8.8m and s = 2.2mph
Therefore,
Speed of the Hiker A = 2.2 mph
Speed of the Hiker A = 2.2 mph
Speed of the Hiker B = 3.3 mph
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answer this please and thank you :)
Answer:
The diver is at a depth of [tex]-5\frac{1}{15}[/tex].
_____________________________________
What we have given:
Initial dive: [tex]1\frac{2}{3}[/tex] = [tex]x[/tex]
Additional dive: [tex]3\frac{2}{5}\\[/tex] = [tex]z[/tex]
Given the context, we can assume that sea level is 0ft.
So we have:
[tex]d=0-1\frac{2}{3}-3\frac{2}{5}[/tex] (d = depth)|
[tex]d=0-\frac{5}{3}-\frac{17}{5}[/tex] <- Convert mixed numbers to improper fractions.
[tex]d=-\frac{5}{3}-\frac{17}{5}[/tex] <- Simplify.
[tex]d=-\frac{25}{15}-\frac{51}{15}[/tex] <- The LCM between 3 and 5 is 15, so adjust the fractions accordingly.
(NOTE: Remember everything you do to the denominator must be replicated on the numerator as well!)
[tex]d=\frac{-25-51}{15}[/tex] <- Since the denominators are equal, combine the fractions.
[tex]d=\frac{-76}{15}[/tex]
[tex]d=-\frac{76}{15}[/tex] <- Apply the following fraction rule = [tex]\frac{-a}{b}=-\frac{a}{b}[/tex]
[tex]d=-5\frac{1}{15}[/tex] <- Convert the improper fraction to a mixed number and there is your final answer.
___________________________________
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a square garden has an area of 144 square feet. the owner wants to put ups deer fence around the garden that costs $3.50 per linear foot. how much will it coat to put up a whole fence around the garden?