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Pavel [41]
3 years ago
7

Find the simplest expression for the perimeter of the triangular roof truss.

Mathematics
1 answer:
REY [17]3 years ago
6 0
Perimeter of triangle = all sides added up
3a + 4 + 2a - 7 + 9a + 11

now add like terms
3a + 2a + 9a = 5a + 9a = 14a

4 - 7 + 11
= -3 + 11 = 8

so we have  14a + 8
as our simplest expression
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A person standing close to the edge on top of a 72-foot building throws a ball vertically upward. The quadratic function h(t)=−1
aleksklad [387]

The quadratic function h(t) = −16t² + 84t + 72, shows that the person throws the ball from on top of a 72 feet building at a velocity of 84 feet/second.

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more numbers and variables.

The quadratic function h(t) = −16t² + 84t + 72, shows that the person throws the ball from on top of a 72 feet building at a velocity of 84 feet/second.

Find out more on equation at: brainly.com/question/2972832

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7 0
2 years ago
WILL MARK BRAINLIEST
Liula [17]

Answer:

possible numbers, he can make with cards 5 9 0 :

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5 0
2 years ago
I need help please.
makkiz [27]

Answer:

see explanation

Step-by-step explanation:

Using the rules of radicals/ exponents

a^{m} × a^{n} = a^{(m+n)}

a^{\frac{m}{n} } ⇔ \sqrt[n]{a^{m} }

Simplifying each term

7\sqrt{x^{3} } = 7x^{\frac{3}{2} }

x\sqrt{9x}

= x × \sqrt{9} × \sqrt{x}

= x × 3 × x^{\frac{1}{2} }

= 3 × x^{(1+\frac{1}{2}) }

= 3x^{\frac{3}{2} }

Subtracting the 2 simplified like terms, that is

7x^{\frac{3}{2} } - 3x^{\frac{3}{2} }

= 4x^{\frac{3}{2} } ← return to radical form

= 4\sqrt{x^{3} }

8 0
3 years ago
17. Type A cream is 18% butterfat and type B cream is 24% butterfat. Choose a table to help you determine how many quarts of eac
Semmy [17]

Answer:

F.

Explanation:

The number of quarts of cream Type A is x.

Type A cream has 18% butterfat, so the amount butterfat will be 0.18x

For type B, we know that the total amount of cream will be 90, so if cream type A is x, cream type B is 90 - x.

Type B crem has 24% butterfat, so teh amount in the mixture will be 0.24(90-x)

Then, the mixture will be 90 quarts of crean that is 22% butterfat, so the amount in the mixture will be 0.22(90)

Therefore, the table that represent this data is table F.

So, the answer is F.

3 0
1 year ago
A rectangular shoebox has an area of 36 squared inches and a height of 12 inches.What is the length of the shoebox?
Ilya [14]

Answer:

3 inches

Step-by-step explanation:

36 inches ÷ 12 inches = 3 inches

4 0
3 years ago
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