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2 years ago

Which of the following points is a solution of y > |x| + 5? 0,5 1,7 7,1

Mathematics

1 answer:

bija089 [108]2 years ago

8 0

(0, 5)
5>5. incorrect

(1, 7)
7>6. correct

(7, 1)
1>12. incorrect

So the correct answer is (1, 7)

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A B C or D? because I'm not understanding

Hitman42 [59]

The answer is 28ft for this answer

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What is the product of 6 1/2 and 9 1/4

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▹ Answer

60 1/8 or 481/8

▹ Step-by-Step Explanation

$6 \frac{1}{2} * 9 \frac{1}{4} \\\\= \frac{13}{2} * \frac{37}{4} \\\\= \frac{481}{8} \\\\= 60\frac{1}{8} or \frac{481}{8}$

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2 years ago

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An airplane flies from City A in a straight line to City B, which is 120 kilometers north and 180 kilometers west of City A. How

Lubov Fominskaja [6]

Answer: 216 kilometers

Step-by-step explanation:

You need the hypotenuse, this is the formula: h = √(a^2 + b^2)

so...

√(120^2 + 180^2)

√(14400 + 32400)

√46800

216.33

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2 years ago

PLEASE HELP !!!!!!!!!!!!!!!!!!!!!!!I will give brainliest !!!!!!!!!!!!!!Sam knows he will be waiting at least 80 minuets in line

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Answer:

Step-by-step explanation:

20 x 4 = 80

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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

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