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HACTEHA [7]
3 years ago
8

Marty drives 150 miles for 3 hours. What is the unit rate?

Mathematics
1 answer:
son4ous [18]3 years ago
8 0

Answer:

50 miles every 1 hour

Step-by-step explanation:

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Can y’all help me answer these questions
cupoosta [38]

2. f(x)=\dfrac18\left(\dfrac14\right)^{x-2}

Domain: (-\infty,\infty), because any value of x is allowed and gives a number f(x).

Range: (0,\infty), because a^x>0 for any positive real a\neq0.

y-intercept: This is a point of the form (0, f(0)). So plug in x=0; we get f(0)=\frac18\left(\frac14\right)^{-2}=\frac{4^2}8=2. So the intercept is (0, 2), or just 2. (Interestingly, you didn't get marked wrong for that...)

Asymptote: This can be deduced from the range; the asymptote is the line y=0.

Increasing interval: Going from left to right, there is no interval on which f(x) is increasing, since 1/4 is between 0 and 1.

Decreasing interval: Same as the domain; f(x) is decreasing over the entire real line.

End behavior: The range tells you f(x)>0, and you know f(x) is decreasing over its entire domain. This means that f(x)\to+\infty as x\to-\infty, and f(x)\to0 and x\to+\infty.

3. f(x)=\left(\dfrac32\right)^{-x}-7

Domain: Same as (2), (-\infty, \infty).

Range: We can rewrite f(x)=\left(\frac23\right)^x-7. \left(\frac23\right)^x>0 for all x, so \left(\frac23\right)^x-7>-7 for all x. Then the range is (-7,\infty).

y-intercept: We have f(0)=\left(\frac32\right)^0-7=1-7=-6, so the intercept is (0, -6) (or just -6).

Asymptote: y=-7

Increasing interval: Not increasing anywhere

Decreasing interval: (-\infty,\infty)

End behavior: Similar to (2), but this time f(x)\to+\infty as x\to-\infty and f(x)\to-7 as x\to+\infty.

5 0
3 years ago
WHO WANTS TO JOIN MY REMIND??? the code is DallasTX14 (ik ik, its weird lol)
Ghella [55]

I MIGHT JOIN JUST NOT NOW

Step-by-step explanation:

gotta do hw >:(

also how old are you cuz im 13 and don't wanna talk to an old man

4 0
2 years ago
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How much will a person pay for 7.5 pounds of bananas at a price of $2.07 per pound?
igomit [66]

Answer:

$15.57

Step-by-step explanation:

2.07 times 7.50 = $15.57!

7 0
2 years ago
Evaluate function helpp mee plzzz
Pavlova-9 [17]

Answer:

ye i dont know but nice computer bro

Step-by-step explanation:

3 0
2 years ago
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The total number of shares of stock in a corporation is 950,000. Carlos owns 25,000 shares. What percent of the shares of stock
ivann1987 [24]

Answer:

He owns 38%

Step-by-step explanation:

divide 950,000 by 25,000

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