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amid [387]
3 years ago
10

Which relationships are likely to have a positive association? .

Mathematics
1 answer:
uysha [10]3 years ago
7 0

Answer:

A, C

Step-by-step explanation:

A. the distance traveled on a trip and the travel time  YES

B. the distance remaining on a trip and the travel time  NO

C. the amount of money spent and the the number of shirts bought  YES

D. the height of an eighth-grade student and the time to complete a puzzle  NO

E. the amount of money owed on a computer and the time making payments  NO (the amount of money owed drops with each payment made)

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What must be true and what letter is the answer?
Zanzabum

Answer:

4th one is correct for x/y

5 0
3 years ago
Are two lines with positive slopes parallel?
frosja888 [35]

Answer:

Not necessarily, but they could be.

Step-by-step explanation:

The only time two lines are parallel is if they have the exact same slope. Since both are positive here, that could be true. However, if they differ even the slightest bit, than no, they would not be parallel.

8 0
3 years ago
Which of the following expressions is equivalent to (–7)5? A. –7 • –7 • –7 • –7 • –7 B. –7 • 5 C. (–7) • 7 • (–7) • 7 • –7 D. 5
abruzzese [7]

Answer:A. B. D.

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
F(x) = –2x2 + 4x and g(x) = x2 + 18x + 77.<br> What is (f•g)(x) in standard form?
Vikki [24]

Step-by-step explanation:

I take it this is meant to be a multiplication, right ?

not a "function of function", which would be symbolized by a little empty circle.

to multiply 2 function means basically the same as to add, subtract or divide 2 functions : to apply the arithmetic operation in both expressions.

(f×g)(x) = (-2x² + 4x)(x² + 18x + 77) =

= -2x⁴ - 36x³ - 154x² + 4x³ + 72x² + 308x =

= -2x⁴ - 32x³ - 82x² + 308x

7 0
3 years ago
The length of a rectangle is 5 m greater than the width. The perimeter is 150 m. find the width
Elza [17]

P = perimeter

Perimeter of a rectangle = l + l + w + w

or  P = 2l + 2w

You know:

P = 150 m

l = w + 5     [length is 5 m greater than the width]

P = 2l + 2w        Plug in what you know

150 = 2(w + 5) + 2w     Simplify, distribute/multiply 2 into (w + 5)

150 = 2w + 10 + 2w

150 = 4w + 10     Subtract 10 to both sides of the equation

140 = 4w       Divide 4 on both sides

35 = w

PROOF               l = w + 5 --->  l = 40

P = 2l + 2w

150 = 2(40) + 2(35)

150 = 80 + 70

150 = 150

4 0
4 years ago
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