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
olga2289 [7]
3 years ago
10

What is the height of the support beam?

Mathematics
2 answers:
FinnZ [79.3K]3 years ago
6 0

Answer:D. 36 m

Step-by-step explanation: Use the Pythagorean Theorem, which is a^2 + b^2 = c^2 to find the missing side. C is the hypotenuse. Plug in the numbers.

15^2 + b^2 = 39^2

Simplify.

225 + b^2 = 1521

Subtract 225 from each side.

b^2 = 1296

Square root each side to isolate b.

b = 36

The height of the support beam is 36 m.

Marysya12 [62]3 years ago
4 0

Answer:

36 meters

Step-by-step explanation:

Using pythagorean theorem, 36² - 15² = 1296. √1296 = 36 meters

You might be interested in
At a certain high school, about one in every 12 students have natural red hair. If a teacher has 179 students, how many students
nadya68 [22]

Answer:

look up alaskan pipeline

Step-by-step explanation:

4 0
3 years ago
In a certain college, 33% of the math majors belong to ethnic minorities. If 7 students are selected at random from the math maj
Digiron [165]

Answer: a) 0.996, b) 0.253, c) 0.02.

Step-by-step explanation:

Since we have given that

Probability of success = Probability of the math majors belong to ethnic minorities = 33% = 0.33 =p

Probability of failure = q = 1-0.33 = 0.67

Number of students selected = 7

a) No more than 5 belong to an ethnic minority

So, using "binomial distribution", we get that

P(X\leq 5)=\sum^5 _{x=0} ^5C_x(0.33)^x(0.67)^{5-x}=0.996

b. Exactly three of them belong to an ethnic minority

So, it becomes,

P(X=3)=^7C_3(0.33)^3(0.67)^4=0.253

c. None of them belong to an ethnic minority

P(X=0)=^7C_0(0.33)^0(0.67)^7=0.02

Hence, a) 0.996, b) 0.253, c) 0.02.

8 0
3 years ago
A road is 5.5 kilometers long. How many centimeters long is it? Enter your answer in the box. cm
yarga [219]
5.5x1000=5,500m
5,500x100=550,000cm
OR
5.5x100,000
8 0
3 years ago
Read 2 more answers
Find a polynomial that describes the area of the lawn which kevin has to mow in his front yard 6x+5,4x-9
Likurg_2 [28]

Answer:

Area=24x^2-34x-45

Step-by-step explanation:

Length and width of the yard are (6x+5) and (4x-9).

Area=length\times width\\\\Area=(6x+5)\times (4x-9)\\\\Area=24x^2+20x-54x-45\\\\Area=24x^2-34x-45

7 0
3 years ago
Select the expression that means y divided by 3.
LenKa [72]

Answer:

E. y/3

Step-by-step explanation:

Read and follow:

Y DIVIDED BY 3

Y         ÷            3

or just

\frac{y}{3}

Hope this helps

~R3VO

5 0
3 years ago
Read 2 more answers
Other questions:
  • From 75 pencil to 225 pencils. Round to the nearest percent.
    8·2 answers
  • Are the two lines parallel,perpendicular,or neither?<br><br><br> 3x+7y=15 , 7x-3y=6
    6·1 answer
  • There are 4 quarts in a quart and 4 quarts in a gallon. A baker needs 1 cup of milk for each batch of muffins he makes. He has 3
    9·1 answer
  • Se necesita cercar un terreno de forma rectangular con alambre que cuesta $7,20 el metro. Si el terreno tiene 125m² y el largo e
    5·1 answer
  • The length of a rectangle is 3 more than twice the width. What algebraic expression represents this situation?
    12·1 answer
  • <img src="https://tex.z-dn.net/?f=%285x%20-%202%29%20%5Ctimes%20%28x%20%20%2B%202%29" id="TexFormula1" title="(5x - 2) \times (x
    5·1 answer
  • How would u write an equation for the slope of 2/3 and a y intercept of -3
    6·2 answers
  • 1. John earns 12% for each house he sells.
    9·2 answers
  • Write each phrase as an algebraic expression.
    12·2 answers
  • INDEPENDENT or DEPENDENT?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!