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Sergeu [11.5K]
3 years ago
15

Solve for f f+0.2=−3 a. f= -3.2 b. f= -2.8 c. f=2.8 d.f=3.2

Mathematics
2 answers:
Juliette [100K]3 years ago
7 0
The answer is A. You have to isolate the variable(f) by subtracting 0.2 from both side. When youve done that, the answer should be -3.2
Semenov [28]3 years ago
5 0
F=-3-0.2 =-3. 2
the answer is A
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If h(x) = -4x - 10, find h(-5)
Neko [114]

Answer:

zero.

Step-by-step explanation:

. Here are the steps. h(x) = -5x - 10. h(-2) = -5(-2) - 10. h(-2) = 10 - 10. h(-2) = 0. Have a great day

4 0
2 years ago
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A salesman keeps 20% of his sales as a commission. How much does he have to sell to earn $1,000? It is percent proportions by th
BARSIC [14]
If he wants to earn $1000, it means that $1000 must be 20% of his overall sales.

1000 = 20% * x
1000 = 20/100x
1000 = 0,2x         / ÷ 0,2 (both sides)
x = 5000

Answer: A salesman must sell products for $5000 to earn $1000.
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2 years ago
Set of data has a normal distribution with a mean of 56 and a standard deviation of 7. Find the percent of data within the follo
makvit [3.9K]

Answer:

.99815

which is about

99.815%

Step-by-step explanation:

we are looking for 35<x<77

We need to find (what I think is called) the z score which is acheieved through what I'm pretty sure is called standardizing

What we do is subtract the mean and then divide by the standard deviation

so for 35 we have

(35-56)/7= -3.29

due to the fact that the normal distribution is symmetric this is equal to 1-p(3.29)

to find p(3.29) grab a ztable and get p(3.29)= .9995

1-.9995= .0005

For 77 we have

(77-56)/7=3

grab a ztable and find the 3= .99865

Finally subtract these two to get the final answer

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7 0
3 years ago
Bethany borrows $8000 at 3% interest rate with interest compounded continuously for 6 years. What is the total interest?
soldier1979 [14.2K]

Answer:

$1,577.74

Step-by-step explanation:

You are going to want to use the continuous compound interest formula, which is shown below.

A = Pe^{rt}

<em>A = total </em>

<em>P = principal amount </em>

<em>r = interest rate (decimal) </em>

<em>t = time (years) </em>

<em />

First change 3% to its decimal form:

3% -> \frac{3}{100} -> 0.03

Next, we can plug in the values into the equation:

A=8,000e^{0.03(6)}

A=9,577.74

The last step is to subtract 8,000 from 9,577.74:

9,577.74-8,000=1,577.74

The total interest earned is $1,577.74

3 0
3 years ago
Would .75 enlarge reduce or preseve
Karolina [17]

Answer:

Reduce

Step-by-step explanation:

0.75 would be making the subject smaller because it is less than one.

8 0
3 years ago
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