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3 years ago

9

A research article claims that 52% of people have at least one pet. Suppose the claim is true for a school with 450 students. Wh

at would be the ratio of the actual number of students who have a pet to the actual total number of students?

2 answers:

BigorU [14]3 years ago

8 0

Answer: (234) ma’am I think

hichkok12 [17]3 years ago

3 0

Answer:

234

Step-by-step explanation:

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Helen wants to find the surface area of the solid pictured on the left, so she constructs a net of the solid pictured on the rig

lana [24]

Answer:

Helen’s net is correct because she reorganized the solid as a triangular prism.

This is because the net has a rectangular base and 4 triangular sides.

Step-by-step explanation:

Rectangular SA one side+1 = 30 x 9 = 270 + 1s= 270 x 2 =540sq^2

Rectangular side one side +1 = 18 x 9 = 162 +1s = 162 x 2 = 324sq^2

2 x 2 triangular sides either end = 4/3 x 15 x 27.3 + 18 x 30.9 = 409.5 (x2) = 819sq^2

=864 + 360

Pyramid area = 1236.71sq^2

Volume = V=1620^3

3 0

3 years ago

Read 2 more answers

Please help!!!hehene snsn

lana66690 [7]

Answer:

y = 2x+2

As we can see X has 0 while Y has 2 already, meaning the Y intercept has to be 2.

5 0

3 years ago

Read 2 more answers

What is the value of a for the exponential function in the graph represented in the form of f(x)=a(b^x)

Rina8888 [55]

<em><u>Note: The complete question, along with the graph, is attached below.</u></em>

<em><u /></em>

Answer:

The value of a = 3

Step-by-step explanation:

Given the function

$f\left(x\right)=a\left(b^x\right)$

From the attached graph, it is clear that

at x = 0,

$f\left(0\right)=a\left(b^0\right)$

$\:f\left(0\right)\:=\:a\:\times \:1$ ∵ $b^0=1$

$f\left(0\right)=a$

Thus

When x = 0, the y-intercept will be:

$f\left(0\right)=a$

From the attached figure, it is clear that

at x = 0, the value of y = 3

so

putting y = 3 in the equation

$f\left(0\right)=a$

3 = a ∵ $f\left(0\right)=y=3$

Therefore, the value of a = 3

6 0

3 years ago

The heights of women aged 20 – 29 in the United States are approximately Normal with mean 64.2 inches and standard deviation 2.8

Bumek [7]

Answer: 0.64

Step-by-step explanation:

Given : The heights of women aged 20 – 29 in the United States are approximately Normal with $\mu=64.2$ inches and $\sigma=2.8$ inches.

Let x denotes the height of women.

Since 1 feet = 12 inches

5.5 feet = $5.5\times12=66$ inches

Then, the z-score corresponds to x=66 inches will be :-

$z=\dfrac{66-64.2}{2.8}=0.642857142857\approx0.64$

Hence, the z ‑score for a woman 5.5 feet tall = 0.64

8 0

4 years ago

Someone help please

nordsb [41]

I don’t see a z anywhere in the equation but with the other numbers (I think) is -6.

7 0

3 years ago