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Dvinal [7]
3 years ago
9

Please help question 15

SAT
2 answers:
ladessa [460]3 years ago
5 0

I am almost 100% sure the answer is D.

Scorpion4ik [409]3 years ago
4 0

Answer:

d

Explanation:

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two objects, x and y, accelerate from rest with the same constant acceleration. object x accelerates for twice the time as objec
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Answer:

X has travelled 4 times as far as Y

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Explanation:

Because x=1/2at²(get rid of the first portion of x=vt+1/2at² because initial v is 0 which multiplies to 0). If the acceleration is set to for example 10 (keep this constant for both X and Y) and we use t=1 and t=2 for time (as the time travelled of X is twice that of Y). Plugging this into the equation, at t=1, x=4. At t=2, x=20. 20 is four times greater than 5, so X has travelled 4 times as far as Y.

To find the difference in speed between the two objects, use the equation v_{f}=v_{0} +at. Since the initial velocity is 0, that part can just be removed from the equation. With v=at, it is easy to see that if the time plugged in is twice for one than the other (and the acceleration is the same for both), the final result will be twice of the other as well. For example: If the acceleration is 10 again for both, then v=10t. If t is 1, the velocity is 10. If t is 2, the velocity is 20.

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Algebra 1: concepts, skills, and problem solving (california) solutions
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An example of Algebra 1 problem solving question is  (3 + a) + b².

<h3>What is algebra?</h3>

The Basics of Algebra are known to cover simple math areas such as numbers, variables,  multiplication, division that are found in algebraic expressions.

Looking at this question,  (3 + a) + b², you collect like terms;

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Learn more about algebra from

brainly.com/question/22399890

8 0
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