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3 years ago

15

Martha is making a model house from a kit. Each wall section requires 5 pins to hold it in place. There are 3 wall section. How

many pins should be in the kit?

1 answer:

Gemiola [76]3 years ago

7 0

The problem you need to solve is 5 x 3 of which equals 15 pins

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5. f(x) = 3x³ - 4x² +6x and g(x)=5x ³+ 2x²- 3x. What is f(x) - g(x)?

sasho [114]

Answer:

<h2>A. -2x³ - 6x² + 9x</h2>

Step-by-step explanation:

$f(x)=3x^3-4x^2+6x\\\\g(x)=5x^3+2x^2-3x\\\\f(x)-g(x)=(3x^3-4x^2+6x)-(5x^3+2x^2-3x)\\\\=3x^3-4x^2+6x-5x^3-2x^2-(-3x)\qquad\text{combine like terms}\\\\=(3x^3-5x^3)+(-4x^2-2x^2)+(6x+3x)\\\\=-2x^3-6x^2+9x$

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3 years ago

Select the expression that can be used to find the volume of this rectangular prism. A. ( 6 × 3 ) + 15 = 33 i n . 3 (6×3)+15=33

Usimov [2.4K]

Answer:

D

Step-by-step explanation:

(3x6)x15=270 in

the volume formula is base times width times height.

6 0

3 years ago

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Lucia estimates the attendance at the middle school concert to be 267. The actual attendance is 304.

USPshnik [31]

Answer:

12%

Step-by-step explanation:

Divide 267 by 304

Lucia got 88% correct

Lucia got 12% Incorrect

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3 years ago

Alison does 8 math problems in 2 minutes. How long will it take her to do a set of 160 problems?

erastovalidia [21]

Answer:

40 min

Step-by-step explanation:

find unit rateeee p=problems

8 p= 2 min

8/2=4

so Alison can do 4 math problems per minute

so 160/4= 40 minutes

hope this helps

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3 years ago

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Identify the angles relationship

anygoal [31]

Answer:

Adjacent

Step-by-step explanation:

Adjacent angles are two angles that have a common vertex and a common side but do not overlap

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3 years ago