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2 years ago

11

A person stands 15 feet from the base of a building. The height of the building is 27 feet. Find the distance from the person to

the top of the building. Round to tenths place.
Can someone please help me?

1 answer:

Temka [501]2 years ago

6 0

Answer:

30.9ft

Step-by-step explanation:

hope this helps, branliest plzz

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The histogram shows the heights in meters of trees in a certain section of a park. How many trees are less than 20 meters tall?

scoray [572]

Answer:

The histogram shows the heights in meters of trees in a certain section of a park.

How many trees are less than 20 meters tall?

Answer: From the given histogram, we clearly see:

There is 1 tree with height less than 8 meters

There are 1 + 2 = 3 trees with height less than 12 meters

There are 3 + 2 = 5 trees with height less than 16 meters

There are 5 + 4 =9 trees with height less than 20 meters.

Therefore, the correct option is B. 9

Step-by-step explanation:

6 0

3 years ago

What is the measure of angles 1, 2, and 3?

stellarik [79]

Answer:

1= 70

2= 65

3= 95

For 1, just solve 180-(65+45) and then for 2, subtract #1 and 45 from 180. Then just solve for #3 by using 180-(#2+20)

4 0

2 years ago

Read 2 more answers

PLEASE HELP ME I need an answer

son4ous [18]

Just for you beautiful!

Use distance formula: d = sqrt((x2 - x1)^2 + (y2 - y1)^2)

(11,-4) is (x1,y1) and (-12,-4) is (x2,y2)

Plug in and simplify

d = sqrt((-12 - 11)^2 + (-4 - -4)^2)

d = sqrt((-23)^2 + (0)^2)

d = sqrt(529 + 0)

d = sqrt(529)

d = 23 (positive because length cannot be negative) ;)

5 0

3 years ago

A class of 32 students earned

Yuliya22 [10]

Answer:

5/16 Got a C

Step-by-step explanation:

A = 1/4 x 32

B = (32 - A)/2

D = 2

A = 8

B = (32 - 8)/2

B = 24/2

B = 12

D = 2

8 + 12 + 2 = 22

22/32 did not get a C

32/32 - 22/32 = 10/32

10/32 - > 5/16

3 0

3 years ago

UCF is a major Metropolitan University located in Orlando Florida. UCF is advertising their bachelor in Economics with the stati

ludmilkaskok [199]

Answer:

There is not enough evidence to suggest that mean starting salary of a graduate with a bachelor in economics is different from $48,500.

Step-by-step explanation:

In this case we need to test whether the mean starting salary of a graduate with a bachelor in economics is $48,500.

The information provided are:

$\bar x=\$43350\\s=\$15000\\n=50\\\alpha =0.01$

The hypothesis for the test can be defined as follows:

<em>H</em>₀: The mean starting salary of a graduate with a bachelor in economics is $48,500, i.e. <em>μ</em> = 48500.

<em>Hₐ</em>: The mean starting salary of a graduate with a bachelor in economics is different from $48,500, i.e. <em>μ</em> ≠ 48500.

As the population standard deviation is not known we will use a t-test for single mean.

Compute the test statistic value as follows:

$t=\frac{\bar x-\mu}{s/\sqrt{n}}$

$=\frac{43350-48500}{15000/\sqrt{50}}\\\\=-2.42773\\\\\approx -2.43$

Thus, the test statistic value is -2.43.

Compute the p-value of the test as follows:

$p-value=2\times P(t_{49}>-2.43)=0.0188$

*Use a t-table.

Thus, the p-value of the test is 0.0188.

Decision rule:

If the p-value of the test is less than the significance level then the null hypothesis will be rejected and vice-versa.

p-value = 0.0188 > α = 0.01

The null hypothesis will not be rejected at 1% level of significance.

Thus, concluding that there is not enough evidence to suggest that mean starting salary of a graduate with a bachelor in economics is different from $48,500.

3 0

3 years ago