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3 years ago

Which pair of expressions is equivalent using the Associative Property of Multiplication?

Mathematics

2 answers:

bixtya [17]3 years ago

6 0

With the associative property, it does not matter which order you multiply numbers in. The answer to 4*5 is the same answer as 5*4. This works with more than two numbers as well. The associative property of addition also works this way.

In this question, it is important to watch where the parentheses are placed.

ANSWER: C) 4(2a * 5) = (2a * 5) * 4. Multiplying 4 to the left or the right of the set of parentheses will result in the same answer.

Hope this helps! :)

Dmitry [639]3 years ago

6 0

Answer:it’s a

Step-by-step explanation:

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Answer:

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3 years ago

Write a parallel and perpendicular equation that passes through the point (6,-2)?

Reptile [31]

Answer:

y=x-8 and y=-x+4

Step-by-step explanation:

The slopes of the lines can be anything, as long as they are the opposite reciprocals of each other. Then you can plug in the point for x and y to solve for b in both lines (for y=mx+b where m is the slope)

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3 years ago

If 2866 represents 5% of the total, how do I calculate the 95%?

Yuki888 [10]

Answer:

57,320

Step-by-step explanation:

find the remaining of the whole, there are 19 other of the 5 percents.. add them to the beginning

7 0

3 years ago

Which of the following is equivalent to (1/2)^-2t

Zepler [3.9K]

Answer:

Choice (3) $\left(2^2\right)^t$ is correct.

Step-by-step explanation:

Given expression is $\left(\frac{1}{2}\right)^{-2t}$

Now we need to simplify this and check which of the given choices best match with it.

$\left(\frac{1}{2}\right)^{-2t}$

$=\left(\frac{1}{2^1}\right)^{-2t}$

$=\left(2^{-1}\right)^{-2t}$ {using formula $=\frac{1}{x^m}=x^{-m}$ }

$=\left(2^{-1}\right)^{-2t}$ {using formula $=\left(x^m\right)^n=x^{\left(m\cdot n\right)}$ }

$=2^{\left(-1\right)\left(-2t\right)}$

$=2^{2t}$

$=\left(2^2\right)^t$ {using formula $=\left(x^m\right)^n=x^{\left(m\cdot n\right)}$ }

Hence choice (3) $\left(2^2\right)^t$ is correct.

8 0

3 years ago

Read 2 more answers

The length of the radius of a bicycle wheel is 14 inches. Which of the following is closest to the circumference of the wheel? A

tatuchka [14]

Answer:

C. 88 in.

Step-by-step explanation:

This is because the equation for the circumference of a circle is pi times diameter. To get the diameter, multiply the radius by 2. Then do 28*3.14 to get the circumference of the circle then round your answer to get the nearest whole number which is 88 in.

6 0

3 years ago