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Arte-miy333 [17]
3 years ago
15

The cost to rent a car is $25 plus an additional $0.15 for each mile the car is driven. Which of the following equations could b

e used to find the number of miles, m, a car was driven if the car had a bill of $71.80?                                                                     25m + 0.15 = 71.8                                                                                                                71.8m + 25 = 0.15                                                                                                                25 + 0.15m = 71.8                                                                                                       0.15m + 71.8 = 25
Mathematics
2 answers:
yarga [219]3 years ago
8 0

Answer: 25 + 0.15m = 71.80

coldgirl [10]3 years ago
4 0
25 + 0.15m = 71.80 <===
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If A = (7, 9) and B = (3, 12), what is the length of AB
Anastaziya [24]

The Pythagorean theorem is used to find the distance between two points. If that distance is "c", it satisfies the relation

... a² + b² = c²

where "a" and "b" are the horizontal and vertical differences between the point coordinates. Here,

... a = 7 - 3 = 4 . . . . horizontal difference

... b = 12 - 9 = 3 . . . . vertical difference

Then we have

... 4² + 3² = c² = 25

... c = √25 = 5

The length of AB is 5 units.

5 0
3 years ago
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Another one, surprise, surprise- 14 points :)
antiseptic1488 [7]

I uplоadеd the answеr to a filе hоsting. Herе's link:

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3 0
3 years ago
A friend asks to borrow $250 for 120 days and agrees to pay 2.5% simple interest every 30 days. How much interest will you earn
IgorC [24]

Answer:

We will $ 6.25 of interest every 30 days.

Step-by-step explanation:

Please notice that a month equals 30 days and that earning due to interests will be only effective after each 30th day. The simple interest formula is defined by the following formula:

I = \frac{C\cdot r\cdot t}{100} (1)

Where:

C - Borrowed money, measured in monetary units.

r - Simple interest rate, measured in percentage.

t - Number of periods, measured in months.

I - Interested gain due to borrowed money, meausred in monetary units.

If we know that C = 250, r = 2.5 and t = 1, then the interest earned is:

I = \frac{(250)\cdot (2.5)\cdot (1)}{100}

I = 6.25

We will $ 6.25 of interest every 30 days.

8 0
3 years ago
what is the probability of (A) if P(AnB) =.20; P(AnC) =.16; and P(AnD) =.11 and we assume "A" can occur simultaneously only with
NemiM [27]
<span>the probability of (A)
P(A)=</span>P(AnB)*P(AnC)*<span>P(AnD)
P(A)=0.20*0.16*0.11=0.0035---- > 0.35%

the answer is 
the P(A)=0.35%</span>
6 0
3 years ago
Can someone pls help me find the second derivative of this. I need to find the concave up and down intervals but I’m having trou
KonstantinChe [14]

Starting from

f(x)=\dfrac14(x+1)^{\frac83}-4(x+1)^{\frac23}

take the first derivative using the power and chain rules:

f'(x)=\dfrac83\cdot\dfrac14(x+1)^{\frac83-1}-\dfrac23\cdot4(x+1)^{\frac23-1}

f'(x)=\dfrac23(x+1)^{\frac53}-\dfrac83(x+1)^{-\frac13}

Now take the second derivative:

f''(x)=\dfrac53\cdot\dfrac23(x+1)^{\frac53-1}-\left(-\dfrac13\right)\cdot\dfrac83(x+1)^{-\frac13-1}

f''(x)=\boxed{\dfrac{10}9(x+1)^{\frac23}+\dfrac89(x+1)^{-\frac43}}

Optionally, you can condense the second derivative a bit by factoring out \frac89(x+1)^{-\frac43}, which gives

f''(x)=\dfrac89 (x+1)^{-\frac43} \left(80(x+1)^{\frac63}+1\right)

f''(x)=\dfrac89 (x+1)^{-\frac43} \left(80(x+1)^2+1\right)

f''(x)=\dfrac89 (x+1)^{-\frac43} \left(80x^2+160x+81\right)

3 0
3 years ago
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