Answer:
Step-by-step explanation:
[tex]y=k/x^{2}[/tex]
when y=4, x=5. Therefore:
[tex]4=k/5^2[/tex]
[tex]k=100\\[/tex]
If [tex]k=100, x=10 \\[/tex]
then [tex]y=100/10^2[/tex]
y=1
Answer:
The value of x when y = 9 is x = 2 or x = -2
Step-by-step explanation:
Given that value of y varies inversely as the square of x, and y=4, when x=3.
Therefore the initial statement is:
[tex]y x \frac{1}{x^{2} }[/tex]
number 4 please!! thank you
Answer: correct
Step-by-step explanation:
can expression be multiplied by a variable
Answer:
yes.
Step-by-step explanation:
if the variable has a number in the problem, yes.
if the variable has no known value, you can't solve it, but you can solve everything else. so yes.
Find the quotient of the quantity 21 times ten raised to the negative twenty first power end quantity divided by the quantity 7 times ten raised to the negative twenty first power end quantity.. write the final answer in scientific notation. 3 x 10−42 3 x 100 3 x 1021 3 x 1042
Answer:3x10^0 or 3x10 to the power of 0
Step-by-step explanation:
I did the same exact one with my teacher i hope this helps you
Matt had 6 books to read. Each book has 11 pages. He has already read 60 pages. How many pages does he have left to read?
Which expression is equivalent to 2−3?
Answer: 2-3= -1
4-5= -1
Step-by-step explanation:
Answer:3-2
Step-by-step explanation:commutative property
according to a report on sleep deprivation by the centers for disease control and prevention, the proportion of california residents who reported insufficient rest or sleep during each of the preceding 30 days is 8.0%, while this proportion is 8.8% for oregon residents. these data are based on simple random samples of 11,545 california and 4,691 oregon residents. perform a hypothesis test to investigate if there is evidence of a difference in proportion at a significance level of 0.05. conclude in the context of the study. list the conditions for this hypothesis test.
The 95% confidence range for the difference in the percentages of sleep deprived people in California and Oregon is from -0.0015 to 0.0175.
With a 95% confidence level or 0.05 significance level, we may say that this range overlaps 0 and that the proportions are not statistically different. In other words, based on the findings from this sample, the proportion of the CA and OR populations may be equal.
What is a confidence interval?
A confidence interval (CI) is a range of estimates for an unknown parameter in frequentist statistics. The 95% confidence level is the most popular, however other levels, such 90% or 99%, are occasionally used when computing confidence intervals. The percentage of related CIs over the long run that include the parameter's actual value is represented by the confidence level. For instance, 95% of all intervals calculated at the 95% level should include the parameter's actual value.
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Graph the equation. Plot at least five points on the graph and label them with their
coordinates.
3. y = x - 1
4. y = 2|x|
S -6
6
4
4
-8-1
x
S -6
4
3
41
6
x
Answer: answer is si - 90w 8y 28y xis 4
Step-by-step explanation:
When a new charter school opened in 2005, there were 350 students enrolled. Since then, the student population has
decreased by 100 students every two years.
Choose the formula below which gives the function N(t) representing the number of students attending the charter school
t years after 2005.
Select the correct answer below:
ON(t) = 100t + 350
ON(t)=-100t + 350
ON(t) = 50t + 350
ON(t) = -50t + 350
ON(t) = 350t + 100
ON(t) = -350t + 100
The number of students attending the charter school t years after 2005 is given by -50t + 350
What is an equation?An equation is used to show the relationship between numbers and variables. An equation can be linear, quadratic depending on the degree.
Let N(t) represent the number of students after t years, hence:
Since the population has decreased by 100 students every two years:
N(t) = -(100)/2 * t + 350 = -50t + 350
The number of students attending the charter school t years after 2005 is given by -50t + 350
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Suppose that 24 inches of wire costs 72. At the same rate, how much (in cents) will 49 inches of wire cost?
I'm assuming the "costs 72" is referring to 72 cents.
If so, then this is one way to solve:
(24 inches)/(72 cents) = (49 inches)/(x cents)
24/72 = 49/x
24*x = 72*49
x = 72*49/24
x = 147
It costs 147 cents, aka $1.47, to get 49 inches of wire.
Solve for the value of p.
(6p+3) (9p-3)°
Answer:
p = 12
Step-by-step explanation:
Angles in a straight line sum to 180 degrees. Given the two algebraic angles, this can be expressed as follows:
(6p + 3) + (9p - 3) = 180
Take out the brackets:
6p + 3 + 9p - 3 = 180
Combine the like terms:
15p = 180
Divide both sides by 15:
p = 180/15
Simplify:
p = 12
If you want to verify the answer is correct, substitute it back into the original equation:
(6(12) + 3) + (9(12) - 3) = 180
Convert 50 grains to milligrams (to the nearest tenth).
mg
Answer:
3240milligramsStep-by-step explanation:
multiply the value in grains by the conversion factor '64.798'.
So, 50 grains = 50 × 64.798 = 3239.900 milligrams.
round 3240
14
Digital Genius manufactures a cell phone charging pad that can fully charge any cell phone that is placed on it in 15 minutes.
The analytics department determined that at a price of $103.00 each, the demand would be 6 thousand pads, and at $53.00
each, the demand would be 16 thousand pads. Based on the assumption that a linear relationship exists between price and
demand, the price-demand equation is given by
p(x) = 5x + 133,
OA $23.80
OB. $70.00
OC. $63.00
OD. $26.60
where x is the number of thousands of pads in demand. At what price point should they sell the pads to have a demand of
14 thousand pads?
-
Reset
Submit
Answer:
digital genious manufacture a cell phone charging pad that can fully charge any cell phone that is placed on it in 15 min
Step-by-step explanation:
Answer:
Step-by-step explanation:
Find the coordinates of the midpoint of a segment with the given endpoints. Then find the distance between the following pair of points. (Lesson 1-3)
P(26,12) and Q(8,42)
The coordinates of the midpoint is M(x, y) = (17, 27) and its length is 6√34 units.
How to find the coordinates of the midpoint of a line segment
In this problem we have the coordinates of two endpoints of a line segment, of which we must find the location of its midpoint by using the midpoint formula, whose vector form shall be used. Later, we determine the length of the line segment by calculating the vector behind the line segment and its magnitude.
If we know that P(x, y) = (26, 12) and Q(x, y) = (8, 42), then the location of its midpoint and its length are, respectively:
Midpoint
M(x, y) = 0.5 · P(x, y) + 0.5 · Q(x, y)
M(x, y) = 0.5 · (26, 12) + 0.5 · (8, 42)
M(x, y) = (13, 6) + (4, 21)
M(x, y) = (17, 27)
Length
PQ = (8, 42) - (26, 12)
PQ = (- 18, 30)
PQ = √[(- 18)² + 30²]
PQ = 6√34
The coordinates of the midpoint is M(x, y) = (17, 27) and its length is 6√34 units.
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what is the measure of the smaller angle between the hands of a $12$-hour clock at $12:25$ pm, in degrees?
The smaller angle made by the hour hands of a clock at a given time is 137°30'. It is attained by using the concept of clocks on the problems.
What is a clock?
A clock is a device which is used for measuring and indicating the time. It has three hands, namely an hour hand, a minute hand and a second hand. A clock can be classified in two ways, one is a 12-hour clock and the other is a 24-hour clock.
Calculation of the smaller angle made by the hour hand
For minute hand,
60 min makes an angle 360°
1 min = 6°
25 min = 6° × 25
= 150°
For hour hand,
12 hours makes an angle 360°
1 hour = 30°
1 min = 30° / 60
= 1/2°
25 min = 1/2° × 25
= 12°30'
The smaller angle made by hour hand is given by 150° - 12°30'
=137°30'
Hence, the smaller angle between the hour hands is 137°30'.
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The length of a rectangle is thirteen less than two and a half
times its width. The perimeter of the rectangle is 100 feet.
The area of the rectangle is 576.
An area is the total amount of space enclosed by a shape or figures. In this case, the rectangle would be the shape or figure that is being defined and its area would be the total amount of space enclosed by it.
The length of the rectangle is 13 less than 2 and a half times its width means : L=2 [tex]\frac{1}{2}[/tex] w-13
Using the perimeter formula of the rectangle P= 2(L-W) we have
P=100
So
100=2(2( [tex]\frac{1}{2}[/tex])w-13+w)
Solve for W:
100= 2×[tex]\frac{5}{2}[/tex]w-26+2w
100=10/2w-26+2w
100=5w-26+2w
100=7w-26
100+26=7w
126=7w
126/7=w
W=18
We can find the length L=2 [tex]\frac{1}{2}[/tex]w-13 = [tex]\frac{5}{2}[/tex](18) -13
=45-13
L= 32
Area of the rectangle is A= L×W= 32×18=576
Hence, the area of rectangle is 576.
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Please help meeee! Find all parts. SHOW YOUR WORK
The unknown angles are as follows:
x = 29z = 13∠RIG = 59°∠ZIM = 149°How to find angles when line intersect?∠AIM is perpendicular to IR.
Therefore,
∠RIM = 90°
Line AM, ZG and RI intersect at point I.
Therefore,
3x - 56 = x + 2 (vertically opposite angles)
3x - x = 2 + 56
2x = 58
x = 58 / 2
x = 29
4z + 7 + x + 2 = 90
4z + 7 + 29 + 2 = 90
4z = 90 - 7 - 2 - 29
4z = 52
z = 52 / 4
z = 13
∠RIG = 4z + 7
∠RIG = 4(13) + 7
∠RIG = 52 + 7
∠RIG = 59°
∠ZIM = 4z + 7 + 90
∠ZIM = 4(13) + 7 + 90
∠ZIM = 52 + 7 + 90
∠ZIM = 59 + 90
∠ZIM = 149 degrees
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Mona is purchasing a shirt. the total cost, c, of the shirt will be the price of the shirt, p, increased by 6% of the price of the shirt for sales tax. write an equation that represents the total cost of the shirt?
The equation representing total cost of the shirt is c = 1.06p.
As per the question, we are representing the total cost of the shirt as c and price of the shirt as p.
Calculating sales tax on the shirt -
Sales tax = p × 6%
Converting percentage to fraction and hence decimal form
Sales tax = p× 6/100
Sales tax = 0.06p
Forming the equation now -
Total cost = price of the shirt + sales tax on the shirt
c = p + 0.06p
Performing addition on Right Hand Side of the equation to find the equation representing total cost
c = 1.06p
Therefore, the equation representing the total cost of the shirt is c = 1.06p.
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Solve equation.
a-7=9
To solve the equation, add 7 to both sides. The solution is a = 16.
A linear equation is an equation of which the highest degree of its variables is 1.
Steps to solve linear equations:
Simplify the expressions. If there are parentheses, remove them by multiplying the corresponding terms.Combine the same terms.Isolate the variable on one side by using subtraction or addition.Use division or multiplication to find the value of the variable.Recall that if we subtract or add the same number to both sides of an equation, it does not change the equality.
The given problem:
Solve a-7=9
The variable is a. To isolate a, remove -7 by adding 7 to both sides:
a-7 +7 = 9 +7
a = 16 (solved)
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What is 4 divided by 3?
Answer:
la respuesta de esta división es
1.333333>
What is the volume, in cubic centimeters, of the cylinder? Round your
answer to the nearest hundredth
12.3 cm
4.5 cm
1
1
cm³
Answer:12.3cm 4.5cm=
≈782.49
Step-by-step explanation:
V=πr2h=π·4.52·12.3≈782.49219
Solve the following equation.
-2(n+7)=15
Describe the translation from shape A to
shape B as a vector.
Step-by-step explanation:
Translating it on a vector it will be that
please help me it is due today
Answer: 6
Step-by-step explanation:
joyce paid $80 for an item at the store that was 30 percent of the original price. what was the original price?
$114 was the original price of an item.
What does the word percent mean?
A percentage is a ratio or fraction where the full value is always 100. Sam, for instance, would have received 30 out of a possible 100 points if he had received 30% on his arithmetic test. In ratio form, it is expressed as 30:100 and in fraction form as 30/100.Equation for Price Reduction:
Original Price * Percent Remaining of Original = New Price
Plug in the given values into the equation:
Original Price * 0.7 = $80
Divide both sides by 0.7 to isolate the Original Price:
80/0.7 = $114
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determine whether the statement describes a descriptive or inferential statistic. a survey of 1455 people revealed that 53% work a full-time job; therefore it can be assumed that 53% of the u.s. population works a full-time job.
The given statement describes descriptive statistics.
What is Descriptive statistics?In the count noun sense, a descriptive statistic is a summary statistic that quantitatively describes or summarizes features from a collection of data, whereas descriptive statistics (in the mass noun sense) is the process of using and analyzing those statistics. Descriptive statistics differ from inferential statistics (or inductive statistics) in that they seek to summarize a sample rather than learn about the population that the sample of data is thought to represent. This generally means that, unlike inferential statistics, descriptive statistics are not based on probability theory and are frequently nonparametric statistics. For example, knowing that all of the participants in our example wore blue shoes would be useless.Therefore, the given statement describes descriptive statistics.
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Fwam is going to an amusement park. The price of admission into the park is $10,
and once he is inside the park, he will have to pay $3 for every ride he rides on. How
much money would Fwam have to pay in total if he goes on 14 rides? How much
would he have to pay if he goes on r rides?
Cost with 14 rides:
Cost with r rides:
Submit Answer
attempt 1 out of 2
Question 1 (Multiple Choice Worth 1 points)
(02.01 MC)
Is the following relation a function? Justify your answer.
6
-2
4
-1
Yes bara
utout un
-2
Lessons
-2
Assessments
Gradebook.
i need the points. qnuddwdtg6tfr5v
yolanda spends 8 2⁄3 hours per month playing soccer. approximately how many hours does she play soccer in a year? (there are twelve months in a year.)
Approximately 1 hour She plays soccer in a year.
What is soccer?Soccer on CBS Sports is various TV programs that have broadcasted soccer matches in the US on CBS, CBS Sports Organization, and Paramount+. These matches are from Global, European, and American contests. Affiliation football, all the more usually known as just football or soccer, is a group activity played between two groups of 11 players who essentially utilize their feet to impel the ball around a rectangular field called a pitch. Soccer, or football as it's known beyond North America, is the most famous game on the planet. Thus, how could it be played, who plays it, and a lot more inquiries are responded to here.
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what is the slope of the line that passes through the points (-5, 7) and( -2, 4)? Write your answer in simplest form
[tex](\stackrel{x_1}{-5}~,~\stackrel{y_1}{7})\qquad (\stackrel{x_2}{-2}~,~\stackrel{y_2}{4}) \\\\\\ \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{4}-\stackrel{y1}{7}}}{\underset{run} {\underset{x_2}{-2}-\underset{x_1}{(-5)}}} \implies \cfrac{4 -7}{-2 +5}\implies \cfrac{-3}{3}\implies \text{\LARGE -1}[/tex]
Please help me please help me
Answer: FINAL IMAGE OF L IS 6 AND 7
Step-by-step explanation:
Answer:(1,-2)
Step-by-step explanation: