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1 year ago

(Geometry) Question 2

Mathematics

1 answer:

Kruka [31]1 year ago

6 0

Answer:

E = {0, 1, 2, 3)

Step-by-step explanation:

<u>Integer</u>: a number with no decimal or fractional part, from the set of negative and positive numbers, including zero
< means less than
> means more than

E = {0, 1, 2, 3)

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Two drivers, Alison and Kevin, are participating in a drag race. Beginning from a standing start, they each proceed with a const

Vilka [71]

Answer:

Alison wins against Kevin by 0.93 s

Step-by-step explanation:

Alison covers the last 1/4 of the distance in 3 seconds, at a constant acceleration $a_a$ , we have the following equation of motion

$s/4 = a_at_a^2/2$

where s (m) is the total distance, ta = 3 s is the time

$s = 4a_a3^2/2 = 18a_a$

$a_a = s/18$

Similarly, Kevin overs the last 1/3 of the distance in 4 seconds, at a constant acceleration $a_k$ , we have the following equation of motion:

$s/3 = a_kt_k^2/2$

tk = 4 s is the time

$s = 3a_k4^2/2 = 24a_k$

$a_k = s/24$

Since $a_a = s/18$ we can conclude that $a_a > a_k$ , so Alison would win.

The time it takes for Alison to cover the entire track

$s = a_aT_a^2/2$

$T_a^2 = 2s/a_a = 2s/(s/18) = 36$

$T_a = \sqrt{36} = 6 s$

The time it takes for Kevin to cover the entire track

$s = a_kT_k^2/2$

$T_k^2 = 2s/a_k = 2s/(s/24) = 48$

$T_a = \sqrt{48} = 6.93 s$

So Alison wins against Kevin by 6.93 - 6 = 0.93 s

4 0

3 years ago

<img src="https://tex.z-dn.net/?f=8x%20%2B%204%20%3D%205x%20-%2011%20" id="TexFormula1" title="8x + 4 = 5x - 11 " alt="8x + 4 =

Anon25 [30]

8x + 4 = 5x - 11

Subtract 5x from both sides:
3x + 4 = -11

Subtract 4 from both sides:
3x = -15

Divide both sides by 3:
x = -5

Answer : x = -5

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3 years ago

What is the slope of the line that passes through the points listed in the table?

Rama09 [41]

Answer:

deez n u t s

Step-by-step explanation:

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2 years ago

Which of these supporting details BEST fits after sentence 2?

jeyben [28]

Answer:

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Simply the square root of negative 50

ZanzabumX [31]

Answer:

5√2

I think, that sign mean square root.. just letting you know.

Hope I helped!

<em>*simplyeliza*</em>

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2 years ago