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DanielleElmas [232]

4 years ago

8

At 6:00 pm the temperature was 55 at 11:00 pm that same evening the temperature was 40 what real number represents the average c

hange in temperature per hour

1 answer:

emmainna [20.7K]4 years ago

6 0

47.5 is the real number average.

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Can someone please please help me :/ I have to get this right. please help

Vladimir [108]

<h3>Answer: Choice B. f(x) = 100 - 68x</h3>

Work Shown:

Solve for y. Then replace y with f(x).

$680x + 10y - 1000 = 0\\\\10y - 1000 = -680x\\\\10y = -680x + 1000\\\\y = \frac{-680x + 1000}{10}\\\\y = \frac{-680x}{10} + \frac{1000}{10}\\\\y = -68x + 100\\\\y = 100 - 68x\\\\f(x) = 100 - 68x\\\\$

Effectively this involves adding 1000 to both sides and subtracting 680x from both sides, afterward we divide both sides by 10 to isolate y.

4 0

3 years ago

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What will your balance be on an investment of $7000 at 2% for 4 years compounded annually.

e-lub [12.9K]

Your balance would be 35, I think

4 0

3 years ago

In the 7th grade, 132 students take Spanish as an elective. If there are 330 seventh graders, what percent of

klasskru [66]

Answer:

Step-by-step explanation: 40% 132/330=0.4 and 0.4 as a percent is 40%

8 0

3 years ago

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Does anyone know what to do

klasskru [66]

ok, we need to factor the expression

${y}^{5} - 2 {y}^{4} - cxy + 6x = {y}^{4} (y - 2) - x(cy - 6)$

since the expression divisible by y-2, then

$cy - 6 = k(y - 2)$

since 6=2k, then k=c=3

4 0

3 years ago

What does it mean to say that polynomials form a system analogous to integers

HACTEHA [7]

Answer:

Perform arithmetic operations on polynomials.

Step-by-step explanation:Understand that polynomials form a system analogous to the integers, namely, they are closed under the operations of addition, subtraction, and multiplication; add, subtract, and multiply polynomials.

7 0

3 years ago