The requried, perimeter and area of the parallelogram are 18.4 centimeters and 18 square centimeters respectively.
To find the perimeter of parallelogram EFGH, we need to find the length of all four sides and add them up. The distance formula is used to find the length of each side:
EF = √((2-(-1))² + (8-5)²) = √(3² + 3²) = √(18)
FG =√(20)
GH = √(18)
HE = √(20)
Therefore, the perimeter is:
Perimeter = EF + FG + GH + HE = √(18) + √(20) + √(18) + √(20) ≈ 18.4
Similarly,
The area of the parallelogram is given as,
= 18 square centimeters
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(Time limit)
Tell me the domain
Tell me the range
Tell me whether the graph is a function or not
The answer choices are below
A relation represents a function when each input value is mapped to a single output value.
On a graph, a function is represented if the graph contains no vertical aligned points, that is, if there are no values of x at which we could trace a vertical line that would cross the graph of the function more than once.
Tracing a vertical line for any x > -3, the vertical line would cross the graph at two points, meaning that the relation is not a function.
As for the domain and the range, we have that:
The domain is: x ≥ -3 -> values of x on the graph.The range is: all real numbers -> values of y on the graph.More can be learned about relations and functions at brainly.com/question/10283950
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A radioactive element has decayed to 1/32 of its original concentration in 10 yrs. What is the half-life of this element?
The half-life of this radioactive element is approximately 2 years.
We have,
The decay of a radioactive element follows an exponential decay model of the form:
[tex]N = N_0 e^{-kt}[/tex]
where:
N0 is the initial concentration of the radioactive element
N is the concentration after time t
k is the decay constant
We are given that the element has decayed to 1/32 of its original concentration, which means that its current concentration is 1/32 times its initial concentration:
N/N0 = 1/32
Taking the natural logarithm of both sides and rearranging, we get:
ln(N/N0) = ln(1/32) = -3.465
Now we can use the formula for half-life, which relates the decay constant to the half-life t1/2:
t1/2 = ln(2) / k
We can solve for the decay constant k by using the information that the element has decayed to 1/32 of its original concentration in 10 years:
ln(N/N0) = -kt
-3.465 = -k x 10
k = 0.3465
Substituting this value of k into the formula for half-life, we get:
t1/2 = ln(2) / k = ln(2) / 0.3465 = 2.0 x 10^0 years = 2 years.
Therefore,
The half-life of this radioactive element is approximately 2 years.
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I REALLY NEED HELP LIKE ASAP PLS PLS I HAVE A LOT OF HOMEWORK TO DO PLS ANSWER
5(3n+4n+3) = -125
solve for the value of n pls.
Answer:
n=-4
Step-by-step explanation:
5(3n+4n+3) = -125
First, combine like terms:
5(7n+3) = -125
Then, distribute the 5:
35n+15 = -125
Then, get n by itself:
35n= -140
Then, divide by 35 to get n by itself:
n = -140/35
Simplify
n = -4
In △ABC, we are told that a=17, ∡B=70∘, and ∡C=48∘. Solve for b and c.
Answer: b=18.1 and c=14.3
Step-by-step explanation:o solve for the lengths of the sides b and c in triangle ABC, we can use the law of sines, which relates the lengths of the sides of a triangle to the sines of the angles opposite those sides. Specifically, the law of sines states that:
a/sin(A) = b/sin(B) = c/sin(C)
where A, B, and C are the angles of the triangle opposite sides a, b, and c, respectively.
Given that a = 17, B = 70°, and C = 48°, we can write:
b/sin(70°) = 17/sin(A)
c/sin(48°) = 17/sin(A)
To solve for b and c, we need to find sin(A). We can do this by using the fact that the angles of a triangle sum to 180°:
A + B + C = 180°
A = 180° - B - C
A = 180° - 70° - 48°
A = 62°
Now we can substitute sin(A) = sin(62°) into the equations above and solve for b and c:
PLEASE HELP (WILL GIVE BRAINLIEST
Answer:
V = 62.8 m[tex]^{3}[/tex]
Step-by-step explanation:
V = pi × (radius)[tex]^{2}[/tex] × height
V = [tex]\pi[/tex] × [tex]r^{2}[/tex] × h
V = (3.14 × [[tex]2^{2}[/tex]]) × 5
V = (3.14 × 4) × 5
V = 12.56 × 5
V = 62.8 m[tex]^{3}[/tex]
Rewrite the equation in Ax+By=C form. Use integers for A,B,and C. y+5=5(x-4)
As per the given details, the equation in Ax + By = C form is -5x + y = -25, where A = -5, B = 1, and C = -25.
To rewrite the equation y+5=5(x-4) in Ax+By=C form, we need to simplify and rearrange the equation to isolate y on one side:
y + 5 = 5(x - 4)
y + 5 = 5x - 20 (Distribute 5 on the right side)
y = 5x - 20 - 5 (Subtract 5 from both sides)
y = 5x - 25
Now the equation is in slope-intercept form (y = mx + b), where m is the slope and b is the y-intercept. To rewrite it in Ax + By = C form, we need to rearrange the terms to get the x and y terms on the left side and a constant on the right side:
y = 5x - 25
-5x + y = -25
So the equation in Ax + By = C form is -5x + y = -25, where A = -5, B = 1, and C = -25.
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A bottle of water has a diameter of 3 inches and a height of 8 inches, and a mass of 1250 g. What is the volume and density?
The volume of the bottle is 56.52 cubic inches, and the density is 22.12 g/in³.
What is the volume and density of the bootle water?The volume of a cylinder is expressed as;
V = π × r² × h
Where r is radius of the circular base, h is height and π is constant pi ( π = 3.14 ).
Density is expressed mathematically as;
p = m / v
Where m is mass and v is volume.
Given that:
Diameter = 3 in
Radius r = diameter/2 = 3/2 = 1.5 in
Height h = 8 in
Mass m = 1250 g
Find the volume:
V = π × r² × h
V = 3.14 × (1.5 in )² × 8in
V = 56.52 in³
Find the density:
p = m / v
p = 1250g / 56.52 in³
p = 22.12 g/in³
Therefore, the density is 22.12 g/in³.
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I am a little lost and seeking help with this
There is a remarkable discrepancy in perceived organization support amongst female and male employees: women garnered a superior mean score (M=4.65, SD=0.58) as opposed to males (M=4.42, SD=0.70), t(198)=2.51, p<0.05.
How to explain the hypothesisConsequently, we recommend that the committee delve into the source of this divide and take steps to ensure that both sexes receive the same level of solidarity.
It was established that there was no distinct disparity in distributive justice perceptions between female and male employees: females earned a mean score of 4.16 (SD=0.64), while men attained a mean score of 4.14 (SD=0.61), t(198)=0.23, p>0.05.
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The die shown below is a perfect cube with sides of length s.
What is the distance from point A to point B?
Responses
s√2
s √ 2
s√3
s √ 3
2s
2 s
s√5
The distance from the point A to point B is s√3
What is the distance from point A to point B?From the question, we have the following parameters that can be used in our computation:
Perfect cube with sides of length s.
The distance from point A to point B is calculated as
Distance^2 = s^2 + s^2 + s^2
When evaluated, we have
Distance^2 = 3s^2
Take the square roots of both sides
Distance = s√3
Hence, the distance = s√3
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what is the aswer nk
Answer: 2x + 12
Step-by-step explanation:
Let the cost of each sweater be x.
since she's buying 2, the total cost of the sweaters will be 2x.
Just tack on the + 12 at the end for the sunglasses :)
Muriel translated the phrase below into an algebraic expression and then evaluated it for n = 4.
the product of a number and 8
Which of the following contains the correct expression and value?
Answer:
[tex]8n=32[/tex]
Step-by-step explanation:
Muriel's algebraic expression for the phrase "the product of a number and 8" would be 8n, where n represents the number. When n = 4, the value of 8n would be 8 times 4, which is 32. Therefore, the correct expression and value is 8n = 32 when n = 4.
Answer:
8n=32
Step-by-step explanation:
got it right on homework
Find f (x) if f'(x) = 3x² + 8x + 2 and f(1) = 2.
Solve two shapes below shown in photo:
Answer:
1. 69.73 is the Area of the Rectangle. 50.27 is the Area of the Circle. 2. 120 is the area of the parallelogram, 25.13 is the area of the semi-circle
Step-by-step explanation:
For #1, We can to 15 * 8 to get area of what would be the whole rectangle. It is 120. Then, calculate area of the circle, pi * 4^2(4 because the 8 is a diameter. That totals to 50.27 for the circle. Subtract the two, 120-50.27 and you get 69.73 as the area of the shape excluding the circular portion.
For #2, We can apply the same formula for the circle, and divide it by two this time for 25.13 as the circle area. We can use the paralellogram formula of b*h (6*20) and we get 120 for that area. The total for the whole figure on #2 is 145.13 square units.
Note: unit for both is square units, as it is not specified.
Help with this page :)
Answer:
17.
90 - 75 = 15
Answer: b
18.
ABC
Answer: A
19.
Answer: D
20.
Answer: D
Part B
What do the slope and y-intercept represent?
To change a temperature in degrees Celsius, C, to a temperature in degrees
Fahrenheit, F, the equation F=2C+32 can be used.
Part A
Explain how you know the equation represents a linear function.
The slope represents that: a Fahrenheit degree change is equivalent to a Celsius change of 2 degrees.
The y-intercept of 32 represents that: It is the melting point of water on the Fahrenheit scale.
How to Interpret Linear Functions?The general form of expression of Linear functions in slope intercept form is:
y = mx + c
where:
m is slope
c is y-intercept
Now, the equation is given as:
F = 2C + 32
Thus:
Slope = 2
y-intercept = 32
The slope is 2. This means that a Fahrenheit degree change is equivalent to a Celsius change of 2 degrees.
The y-intercept is 32. This is the melting point of water on the Fahrenheit scale.
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Question 10(Multiple Choice Worth 10 points) (04.05 MC) Davenport University claims to accept 63% of applicants. In a random sample of 1,000 Davenport University applicants, 602 were accepted. Calculate the 95% confidence interval and evaluate whether Davenport's claim seems accurate.
The confidence interval using the 95 percent level of significance is given as CI = (0.57, 0.63)
How to solve for the confidence levelSolve for the sample proportion
= 602/1000 = 0.602
z* is the critical value from the standard normal distribution at the 95% confidence level = (1.96)
n = sample size (1000)
CI = 0.602 ± 1.96√((0.602(1-0.602))/1000)
CI = 0.602 ± 0.032
0.602 - 0.032 , 0.602 + 0.032
CI = (0.57, 0.63)
Hence the confidence interval using the 95 percent level of significance is given as CI = (0.57, 0.63)
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The first text message was sent on December 3, 1992. Two decades later, texting has become one of the most popular methods of communication. The number, in millions, of SMS messages sent per year in the United Kingdom is given in the table below. In 2012, the first decrease occurred in the number of SMS messages in the UK and was attributed to the unveiling of Apple’s iMessage on June 6, 2011. Find an exponential model for the number of SMS messages sent annually for years before 2012.
Year 2003 2005 2007 2009 2010 2011
SMS 24086 39751 66331 104358 128462 150651
in
millions
An exponential model for the number of SMS messages sent annually for years before 2012 is [tex]y = 12421e^{0.2325x}[/tex].
How to determine the equation of line of best fit?In this scenario, the year would be plotted on the x-axis (x-coordinate) of the scatter plot while the SMS messages would be plotted on the y-axis (y-coordinate) of the scatter plot through the use of Microsoft Excel.
On the Microsoft Excel worksheet, you should right click on any data point on the scatter plot, select format trend line, and then tick the box to display an exponential equation for the line of best fit (trend line) on the scatter plot.
From the scatter plot (see attachment) which models the relationship between the year and SMS messages, an exponential equation for the line of best fit is given by
[tex]y = 12421e^{0.2325x}[/tex]
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Please help with my geometry.
Find the area of the shaded region.
Answer:
192pie
Step-by-step explanation:
To find the area of a circle, it is pie (3.14) times r². The radius is 24, so it is 24² times pie. The area is 576 pie. Now to find the area of the shaded, you would do 1/3 times the area. 1/3 of 576 is 192. The answer is 192pie
125-foot redwood tree is leaning 20° off vertical. How long will its shadow be when the angle the sunlight makes with the ground is 68°?
Answer:
To solve this problem, we can use trigonometry. Let's call the length of the shadow "s" and the height of the tree "h". Since the tree is leaning, we can't just use the height of the tree directly as one leg of a right triangle. Instead, let's draw a diagram of the situation and see if we can find a way to use trigonometry.
|\
| \
| \ h
|20\
| \
| \
________|____\
s
In this diagram, the angle between the ground and the sunlight is 68 degrees, and the angle between the tree and the ground is 70 degrees (since the tree is leaning 20 degrees off vertical). We can use the tangent function to relate these angles to the lengths of the sides of the triangle:
tan(68) = h / s
tan(70) = h / (s + 125)
We can solve for "h" in terms of "s" using the second equation:
h = (s + 125) * tan(70)
Then we can substitute this expression for "h" into the first equation and solve for "s":
tan(68) = [(s + 125) * tan(70)] / s
s * tan(68) = (s + 125) * tan(70)
s * tan(68) = s * tan(70) + 125 * tan(70)
s = 125 * tan(70) / [tan(68) - tan(70)]
s ≈ 318.8 ft
Therefore , the shadow will be approximately 318.8 feet long.
Step-by-step explanation:
So I think that this is a continuation of question 5. Thank you for the help.
b) By basing on the findings in part (a), we rejected the null hypothesis. This implies that a Type I error – which is the mistake of disregarding a validly-true null supposition – could have potentially been made.
(c) Since the confidence interval holds both negative and positive values, we are not able to confirm that leastwise some dissimilarity might exist between these two proportions.
d) Raising the power of the test may be achievable by lessening the significance level.
How to explain the hypothesisIn this state, it would indicate that we concluded that there exists a considerable divergence between the proportion of men and women intending to vote for Trump when factually there is no distinction.
Raising the power of the test may be achievable by lessening the significance level. Doing so will penalize us with being more lenient towards taking up the alternate assumption, consequently reducing the likelihood of having a Type II error.
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The letters of "EAGLES" should be evenly spaced across a 63 inch wide banner, with no margins. Each letter is 8 inches wide. How many inches (x) should exist between each pair of letter?
Answer:
1 inch
Step-by-step explanation:
Nora is going to invest in an account paying an interest rate of 6.4% compounded
daily. How much would Nora need to invest, to the nearest hundred dollars, for the
value of the account to reach $72,000 in 16 years?
The amount of money that Nora would need to invest is $25913.
How to determine the value of P?In Mathematics and Financial accounting, compound interest can be calculated by using the following mathematical equation (formula):
[tex]A(t) = P(1 + \frac{r}{n})^{nt}[/tex]
Where:
A represents the future value.n represents the number of times compounded.P represents the principal.r represents the interest rate.T represents the time measured in years.By substituting the given parameters into the formula for compound interest, we have the following;
[tex]72,000 = P(1 + \frac{0.064}{365})^{365 \times 16}\\\\72,000 = P(1 + 1.75 \times 10^{-4})^{5,840}\\\\72,000 = P(1.000175)^{5,840}[/tex]
P = 72,000/2.77849825425152
Principal, P = $25913.28 ≈ $25913
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1. A baker is selling pastries at a Farmer's Market. Hand ples cost $5 each, and gourmet
cupcakes cost $3 each.
Select all the combinations of hand pies and gourmet cupcakes that the baker could
sell for exactly $45.00.
a. No hand pies and 15 gourmet cupcakes
b.
2 hand pies and 11 gourmet cupcakes
3 hand pies and 10 gourmet cupcakes
5 hand pies and 6 gourmet cupcakes
6 hand ples and 5 gourmet cupcakes
f. 8 hand pies and 2 gourmet cupcakes
9 hand pies and no gourmet cupcakes
C.
0.
The possible combinations of hand pies and gourmet cupcakes that the baker could sell for exactly $45.00 are:
a. No hand pies and 15 gourmet cupcakesc. 3 hand pies and 10 gourmet cupcakese. 6 hand pies and 5 gourmet cupcakesg. 9 hand pies and no gourmet cupcakes.How the combinations are determined:The possible combinations of hand pies and gourmet cupcakes can be determined by finding the results of each combination using multiplication and addition.
Multiplication and addition are two of the four basic mathematical operations, including division and subtraction.
The unit cost of hand pies = $5
The unit cost of cupcakes = $3
The total sales revenue = $45
a. No hand pies and 15 gourmet cupcakes = $45 ($5 X 0 + $3 x 15)
b. 2 hand pies and 11 gourmet cupcakes = $43 ($5 X 2 + $3 x 11)
c. 3 hand pies and 10 gourmet cupcakes = $45 ($5 X 3 + $3 x 10)
d. 5 hand pies and 6 gourmet cupcakes = $43 ($5 X 5 + $3 x 6)
e. 6 hand pies and 5 gourmet cupcakes = $45 ($5 X 6 + $3 x 5)
f. 8 hand pies and 2 gourmet cupcakes = $46 ($5 X 8 + $3 x 2)
g. 9 hand pies and no gourmet cupcakes = $45 ($5 X 9 + $3 x 0)
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Help me please!!!!!! i will give you 30 points and mark brainliest!
Answer:
12.28
Step-by-step explanation:
To solve this problem you have to spilt the problem into 2 parts.
First, let us solve the triangle.
The formula to find the area of a triangle is [tex]\frac{1}{2}bh[/tex]. The base of this triangle is 3 and the height is 4. This leaves us with an answer of 12. The next step is to divide 12 by two. So now we have the area of the triangle as [tex]6 km^2[/tex].
Second, let's solve the hemisphere.
The formula to find the area of a circle is [tex]\pi r^{2}[/tex]. Because this is a hemisphere we can divide the formula by two to get [tex]\frac{\pi r^2}{2}[/tex]. Now let us insert the values.
In this problem, we have the diameter of the semicircle. To find the radius we divide the diameter by two. This gives us a radius of 2km.
The next step is to multiply 3.14 * 2^2 and divide this by 2:
[tex]\frac{\pi 2^{2} }{2}[/tex]
[tex]\frac{\pi 4}{2}[/tex]
[tex]\frac{12.56}{2}[/tex]
[tex]6.28[/tex]
Lastly, our final step is to add both the triangle area and the area of the semicircle.
[tex]6+6.28[/tex]
[tex]12.28[/tex]
12.28 is our final answer.
If angle N is vertical to angle M, and m angle M 98° and m angle N = (6x + 2), the x must be
If the "angle M" measures 98° and "angle N" measures (6x + 2)°, then value of "x" must be 16.
When the "two lines" intersect, the opposite angles formed are equal in measure, which means that vertical angles are congruent. So, we have:
⇒ Angle M = Angle N
Using the given values, we can write an equation:
⇒ Angle M = 98° and Angle N = (6x + 2)°,
Setting them equal,
We get,
⇒ 98 = 6x + 2,
Solving for x, we subtract 2 from both sides and then divide by 6:
⇒ 96 = 6x,
⇒ x = 16,
Therefore, the variable "x" must be 16 for "angle N" to be vertical to "angle M".
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The given question is incomplete, the complete question is
If an "angle N" is vertical to "angle M", and measure of "angle M" is 98° and the measure of angle N is (6x + 2)°, the x must be.
In a paddock of goats and chickens, there are 67 heads and 166 legs. How many goats are there?
I needed help with this one can some help me
A graph of quadrilateral M'N'O'P' after a vertical translation is shown below.
What is a translation?In Mathematics and Geometry, the translation of a graph downward simply means subtracting a digit from the value on the y-coordinate (y-axis) of the pre-image.
By translating the pre-image of quadrilateral MNOP vertically downward 4 units, the coordinates of quadrilateral M'N'O'P' include the following:
(x, y) → (x, y - 4)
M (-2, 5) → (-2, 5 - 4) = M' (-2, 1).
N (-3, 2) → (-3, 2 - 4) = N' (-3, -2).
O (-5, 2) → (-5, 2 - 4) = O' (-5, -2).
P (-6, 5) → (-6, 5 - 4) = P' (-6, 1).
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Find the volume of rectangular prism. (You should have at least 2 steps shows in your work!)(show all decimal places or a fraction)
Answer:
[tex]3 \frac{3}{4} \times 4 \frac{1}{2} \times 5 = \frac{15}{4} \times \frac{9}{2} \times 5 = \frac{675}{8} = 84\frac{3}{8} [/tex]
The volume is 84 3/8 cubic meters = 84.375 cubic meters.
math hw for tonight
help solve this problem! Thank you!
ap cal bc
Answer:
[tex]\sqrt{2}[/tex]
Step-by-step explanation:
When t = 0, the velocity is:
[tex]\begin{aligned}\vec{v}(t)&=3^t \vec{i}+e^{6t} \vec{j}\\\\t=0 \implies \vec{v}(0)&=3^0 \vec{i}+e^{(6 \cdot 0)} \vec{j}\\ &=1 \vec{i}+1 \vec{j} \end{aligned}[/tex]
Speed is the magnitude of the velocity of the object.
[tex]\boxed{\text{A vector $\binom{x}{y}$ has magnitude $\sqrt{x^2+y^2}$}}[/tex]
Therefore, the particle's speed at time t = 0 is:
[tex]\begin{aligned}\implies |v|&=\sqrt{1^2+1^2}\\&=\sqrt{1+1}\\&=\sqrt{2}\end{aligned}[/tex]
please help me with this. I know the answer for the first one, but I'm just confused about the second one.
Answer: 20
Step-by-step explanation:
because Juanita has a aquarium that is 5 feet LONG, 4 feet WIDE, and 2 feet DEEP, in part b it asks what if the water is 1 foot DEEP so what they're trying to say is what if you replace the original 2 feet DEEP with 1 foot DEEP?
so it would be length x width x depth
5x4x1=20
so the volume is 20ft^3