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Gala2k [10]
3 years ago
7

PLEASE SHOW YOUR WORK AND HOW YOU GOT IT Valerie swam one lap in S seconds, faster than Peter by 4 seconds. Which of the followi

ng represents the average lap time of the two swimminers?
(A) S + 2
(B) S-2
(C) S-1
(D) S +4
​
Mathematics
1 answer:
serg [7]3 years ago
6 0

Answer:

B

Step-by-step explanation:

B because it says Valerie is 4 seconds faster than Peter so that should be S-4 but they tell you to find the average which is S-2 so that's your answer.

Hope I got this correct, I haven't done average in a long time.

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using the 28/36 ratio, determine the maximum allowable recurring debt for someone with an annual income of $86,250.
murzikaleks [220]
Given:
28/36 ratio
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5 0
3 years ago
Simplify
melomori [17]

Answer: 4\sqrt{3}

Step-by-step explanation:

For this exercise it is important to remember the following:

i=\sqrt{-1} \\\\i^2=-1

Given the following expression:

-2i\sqrt{-12}

You can notice that the radicand (the number inside the square root) is negative. Therefore, in order to simplify the expression, you need to follow these steps:

1. Replace \sqrt{-1} with i and simplify:

(-2i)(i)\sqrt{12}=-2i^2\sqrt{12}=-2(-1)\sqrt{12}=2\sqrt{12}

2. Descompose 12 into its prime factors:

12=2*2*3=2^2*3

3. Substitute into the expression:

=2\sqrt{2^2*3}

4. Since \sqrt[n]{a^n}=a, you can simplify it:

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4 0
3 years ago
.help me with this please thanks
aev [14]
I would say B . 
They are not like terms because they are not all the same
5 0
3 years ago
A park is shaped like a trapezoid. It has an area of 7.2 square miles. One base is 1.2 miles, and the other base is 2.4 miles lo
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7.2÷(1.2+2.4)=2
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6 0
3 years ago
Midge baked 6 cookies and 4 brownies. Midge only has enough ingredients to bake at most 25 cookies or brownies total. Let x repr
GenaCL600 [577]
Given:
baked: 6 <span>cookies and 4 brownies
can bake 25 more either </span><span>cookies or brownies

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Let y represent the number of more brownies that Midge can bake.

cookies = 6 + x
brownies = 4 + y

(6 + x) + (4 +y) </span>≤ 25
10 + x + y ≤ 25
x + y ≤ 25 - 10
x + y ≤<span> 15

y </span>≤ <span>15 - x


</span><span>The following graphs best represents the relationship between x and y is:
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<span>line joining ordered pair 0, 15 and 7, 8 and the region below this line which lies in the first quadrant is shaded</span><span>

</span>

4 0
3 years ago
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