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Alla [95]
4 years ago
12

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!

Mathematics
1 answer:
ikadub [295]4 years ago
7 0

Answer:   4095

<u>Step-by-step explanation:</u>

He sold 1 car on the first day so the first term (a) is 1. The amount doubles each month so the ratio (r) is 2.

Input those values into the Sum formula:

S_n=\dfrac{a(1-r^n)}{1-r}\\\\S_{12}=\dfrac{1(1-2^{12})}{1-2}\\\\.\quad=\dfrac{1-4096}{-1}\\\\.\quad=\dfrac{-4095}{-1}\\\\.\quad=4095

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Find the cardinality of the following set. A = { 12 , 14 , 16 , 18 , 20 }
madam [21]

Answer:

2

Step-by-step explanation:

Because they are using the number line: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20

6 0
3 years ago
What multiplies to get 14 and adds to get -9
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Hi. I  begin by finding the positive factors of 14. They are: 1 x 14 and 2 x 7. None of those can be added to yield a negative number, so let's now instead consider their negatives: -1 x -14 and -2 x -7. Does either of these pairs, when added, yield -9? Yes: -2 and -7.

To be clear: -2 x -7 = 14; and -2 + -7 = -9.

So the answer is -2 and -7. 
7 0
4 years ago
Chris wants to leave a 15% tip on the price of the food, calculated before sales tax. What is the maximum cost of food the group
tekilochka [14]
Well there is two ways that you an solve this equation. So I will tell you both and you can pick which one you prefer to use. Anyone is fine by me not that it really matters but anyways here it goes.

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Just because!!!

The other way that you could have done it is that you could have done it the decimal way... $63x0.15 to get  9.45 the same answer as above.
5 0
3 years ago
What are the intercepts to the line
Roman55 [17]
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The y-intercept is -4 because it passes through the vertical line a (y) at point -4.
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5 0
3 years ago
If an object is dropped from a height of 144 ft, the function h(t) = –16t² + 144 gives the height of the object after t seconds.
Oksi-84 [34.3K]
H(t) = -16t² + 144

When will the object hit the ground? This means that the height will equal to 0.

h(t) = 0
0 = -16t² + 144
16t² = 144
t² = 144/16
t² = 9
√t² = √9
t = 3

The object will hit the ground after 3 seconds.
8 0
3 years ago
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