Use the distributive property to simplify the expression. 8(3 + 4) = 24 +

2 answers:

9 0

Using the distributive property is done by multiplying the factor (outside the parentheses) to each term within it. In this case, 8(3 + 4), we multiply the 8 by 3, and then add it to the product of 8 x 4:
8(3 + 4) = 8 x 3 + 8 x 4 = 24 + 32
If we need to simplify further, this adds up to 56.

Zina [86]3 years ago

8 0

<span>The answer is 8(3 + 4) = 24 + </span>32

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13.) Which of these is a better deal, on a per ounce basis?

Gala2k [10]

Using proportions, it is found that the better deal, on a per ounce basis, is given by:

A a 30 oz. box of Tasty Wheats for $4.20

<h3>Proportion</h3>

To find the better deal, we use <em>proportions </em>to find the cost per ounce, that is, dividing the cost per the amount of ounces. The <em>better deal </em>is the one with the smaller cost per ounce.

For each option, the costs per ounce are given by:

A a 30 oz. box of Tasty Wheats for $4.20:

$C_a = \frac{4.2}{30} = 0.14$

B a 24 oz. box of Cherry Oats for $3.60

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$C_d = \frac{6.3}{42} = 0.15$

Due to the <em>smaller cost</em>, option A is the better deal.

To learn more about proportions, you can take a look at brainly.com/question/24372153

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2 years ago

A study attempts to compare two sunscreens. Each of 50 subjects with varying skin complexions will use both sunscreens—Screen A

OverLord2011 [107]

Answer:

D. a matched pairs experiment.

Step-by-step explanation:

A matched pairs experiment can be designed when there are only two possible treatment conditions (Screen A and Screen B) within an experiment and the subjects can be accordingly grouped into pairs (Both sides of the body of a same person, since both sides present the same skin complexion). Within each pair (both sides of the subject's body), subjects are randomly assigned (coin toss) to different treatments.

Therefore, this experiment is an example of a matched pairs experiment.

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3 years ago

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Step-by-step explanation:

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a^4 - a^4 = (a^2 + a^2)(a+a)(a-a)

there is no need of this solution, because it equal to 0 because a^4 - a^4 will be equal then it will be 0

i hope this will help you

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3 years ago