1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
pentagon [3]
3 years ago
8

If you place a 28-foot ladder against the top of a 22 foot building

Mathematics
1 answer:
KATRIN_1 [288]3 years ago
5 0

Answer:

17.3 ft

Step-by-step explanation:

To find the second leg, use the following: √c² - a². Substitute c for 28, and a for 22.

b = √28² - 22² <em>{Square 28 to get 784, and square 22 to get 484.}</em>

b = √784 - 484 <em>{Subtract 484 from 784 to get 300.}</em>

b = √300 <em>{Find the square root of 300.}</em>

b = 17.32051 <em>{Round to the nearest tenth.}</em>

b = 17.3 ft.

The bottom of the ladder will be 17.3 ft from the bottom of the building.

<em>I hope this helps! ^w^</em>

You might be interested in
Lena has three cups of milk in a refrigerator she needs 1/3 of a cup of milk to make a BATCHES of 6 cupcakes how many cupcakes w
Leona [35]

Answer:  Lena will be able to make 54 cupcakes.

Step-by-step explanation:

If 1/3 cups  has t make 6 cups , then we can set up a proportional relationship and find  out how much 3 cups of milk can make.

\frac{1/3}{3}  = \frac{6}{x}     Cross multiply  

1/3x = 18     Multiply both sides by 3.

x = 54  

4 0
3 years ago
Joe, working alone, takes 8 hours to mow a lawn. Sally, working alone, can mow the same lawn in 6 hours. How long does it take t
tamaranim1 [39]

Answer: 3 3/7 hours

Step-by-step explanation:

you need to find out how much work they can do in an hour.

let x represent the total collaborative work

1/8 + 1/6 = 1/x

3/24 + 4/24 = 1/x

7x = 24

x = 24/7 or 3 3/7 hours (in decimal form this is 3.4286)

I cannot guarantee this is correct but hope it helped

6 0
3 years ago
Eric created a rectangular patio using 1 foot square paving stones which are sold in batches by the Dozen the patio measures 7 f
Verdich [7]
Eric need 5 batches of paving stones to created his patio.
6 0
3 years ago
A research team is testing whether a fuel aditive increases a car's gas mileage. The maker of the additive claims that the addit
Thepotemich [5.8K]

Answer:

Yes  there is sufficient evidence to  reject the company's evidence

Step-by-step explanation:

From the question we are told that  

   The sample size is  n =  25

    The mean is  \= x = 5.3 \ mpg

     The standard deviation is  \sigma = 1.8 \  mpg

    The z-score is  z = -1.94

The null hypothesis is  H_o : \mu = 6 \ mpg

The alternative hypothesis is  H_a :  \mu \ne 6

 Generally the p-value is mathematically evaluated as  

           p-value   =  2 * P( Z

From the z table  the area under the normal curve to the left corresponding to    -1.94  is

         P( Z

=>  p-value   =  2 * 0.02619

=>  p-value   =  0.052

Let assume the level of significance is  \alpha = 0.05

 Hence the  p-value > \alpha this mean that

   The  decision rule is  

Fail to reject the null hypothesis

The conclusion is

 There is sufficient evidence to  reject the company's evidence

 

5 0
3 years ago
Por favor contesten en a y b​
erik [133]

Answer:

what...............

4 0
3 years ago
Other questions:
  • A health club charges a $50 initial fee, plus $2 for each visit. Marsha has spent a total of $144 at the health club this year.
    14·1 answer
  • 8/2(2+2)=?<br><br><br> is it 1 or 16
    11·2 answers
  • What’s is the answer to 4(6)
    15·2 answers
  • Eli earns $14.50 per hour at his job. Last week he worked 34 1/2 hours. How much did he earn last week?
    10·2 answers
  • At a concession stand, three hotdogs and two hamburgers cost 8.50, two hotdogs and three hamburgers cost 9.00. What is the cost
    13·1 answer
  • Plz Help me I need help
    8·1 answer
  • How many litres of water can the cylinder hold??​
    15·1 answer
  • Use the following table to answer the question below.
    13·1 answer
  • What was the lower quartile of the number of absences?
    5·2 answers
  • I saw this in a newspaper – it was a puzzle for adults, fully grown humans, but I think you will find it easy.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!