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nlexa [21]
3 years ago
10

You invest $3000 in an account that pays simple interest of 7% for 30 years. how much will you have at the end of 30 years?

Mathematics
1 answer:
nekit [7.7K]3 years ago
5 0
$9,300
First, multiply your beginning amount by the percent of interest: 3,000x0.07 = 210
Then, multiply your interest times the number of years:
210x30 = 6,300
Add you interest to your initial amount:
3,000 + 6,300 = 9,300
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Dahasolnce [82]

Answer:

x = 3 and y = 5

Step-by-step explanation:

Given equations are :

y=5x−10 ..(1)

y=−3x+14 ...(2)

Subtract equation (2) from (1).

y-y = 5x−10-(−3x+14)

0 = 5x-10+3x-14

0= 8x-24

8x = 24

x = 3

Put the value of x in equation (1).

y=5(3)−10

= 15-10

y = 5

So, the values of x and y are 3 and 5 respectively.

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3 years ago
What are the zeros of the function<br> f(x) = x +5 – 2x2?
MA_775_DIABLO [31]

Answer:

x = -1

Step-by-step explanation:

First things first, simplify;

x+5 - 2(2)

x+5 - 4

x+1

Now we have;

f(x) = x+1

subtract 1

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4 years ago
If the measure of ab is 134 what is the measure of abc , the tangent-chord angle
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3 years ago
Read 2 more answers
The mean diastolic blood pressure for a random sample of people was millimeters of mercury. If the standard deviation of individ
spin [16.1K]

Answer:

(85.62, 90.38).

Step-by-step explanation:

The missing data  can be assumed to be we have the following information:

¯x =88, s=10,  n=70

Substituting the values in the following formula, we compute the 95% C.I for true population mean diastolic pressure as shown below:

95% C.I.=¯x±t(0.95,n−1)⋅Sm=¯x±t(0.95,70−1)⋅s√n=88±1.99⋅10√70=(85.62,90.38)

The answer is (85.62, 90.38).

4 0
3 years ago
Please help and explain. Thank you!
Anvisha [2.4K]

Answer:

For the first question, the answer is 216 and the equation would become just 6^3

For the second, the answer is 9.

Step-by-step explanation:

When there is a negative exponent, that monomial is brought up to the top of the fraction, (the numerator) so 1/6^-3 becomes 1(6^3)/1, or simplified, just 6^3 since divided by one is the same number and times one is the same number. 6 x 6 x 6 is 216.

When there is a negative exponent outside the equation in a <u>fraction,</u> you need to take the reciprocal  of the fraction. Since it's squared, it will always be positive, so we can ignore the negative sign. 3/1 (or just 3) to the power of 2 is 9. (3 x 3 is 9).

When explained throughly this might be found confusing, but it's a very easy concept to get after a while.

8 0
3 years ago
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