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3 years ago

A spinner rotates 405 times in 5 minutes. How many spins per minute?

Mathematics

2 answers:

iren2701 [21]3 years ago

7 0

Answer:

Step-by-step explanation:

divide 405 by 5 to get the number of rotations per minute.

Annette [7]3 years ago

7 0

Answer:

81 spins per minute

Step-by-step explanation:

Divide 405 by 5 to get 81 <(your unit rate)

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Which of the following rules should be use to find the area of a triangle?

lbvjy [14]

The area of a triangle is half the product of the base and the height.

Since multiplication is commutative, the following expressions are equivalent:

$A=(bh)\cdot \dfrac{1}{2} = \dfrac{b}{2}\cdot h = \dfrac{h}{2}\cdot b$

So, option D is correct

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3 years ago

The product of (x+2) (x-3) is

Aloiza [94]

Answer:

Step-by-step explanation:

$(x + 2)(x - 3)$

Multiply each term in the first parentheses by each term in the second parentheses ( FOIL)

$x(x - 3) + 2(x - 3)$

Calculate the product

${x}^{2} - 3x + 2x - 6$

Collect like terms

${x}^{2} - x - 6$

Hope this helps..

Best regards!

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4 years ago

Read 2 more answers

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kvasek [131]

The answer is no bc they all have the same x coordinate and therefore fail the vertical line test

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3 years ago

What does it mean to isolate the variable?

natima [27]

Answer: D

Step-by-step explanation: get the variable by itself on one side of the inequality sign.

8 0

3 years ago

melisa1 [442]

Answer:

$\boxed{\sf 10}$

Step-by-step explanation:

The additive number of any number is the number when added to the number gives a result of zero.

So, if we add 10 to -10 we get a result of zero.

=> -10+10

=> Zero

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3 years ago