3 years ago

I don’t get it. If u can actually answer it

Mathematics

1 answer:

ivanzaharov [21]3 years ago

4 0

Answer:

A is the answer! I think you know because the formula is given at the top.

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7k-35=5(1+2k)+2k<br> Can you solve the question

kotykmax [81]

Answer:

7k-35=5+10k+2k

or, 7k-35=5+12k

or, -35-5=12k-7k

or, -40=5k

or, k=-40/5

Therefore, k=-1/8

7 0

4 years ago

What does the interest rate have to be, if a bank pays interest, compounded continuously and the amount doubles in 5 years?

allochka39001 [22]

Let the original amount be A. Double that would be 2A.

Then, 2A = Ae^(r*5), or 2 = e^(5r).

Taking the natural log of both sides: ln 2 = 5r. Then r = (ln 2)/5 = 0.14

The interest rate would have to be 13.86% per year, written here as r=0.14.

3 0

3 years ago

Please please urgently helpp❤️

svetoff [14.1K]

1. The car is 10km/h faster than the bus

Explanation:

50/2.5=20
50/5=10
20-10=10

2. m=-1.5

Explanation

5+7=12
-5-3=-8
12/-8=-1.5

3. f(-4)=-22

Explanation:

f(-4)=4(-4)-6

4. x=37

Explanation
44=2x-30
74=2x
x=37

5 0

3 years ago

Find the range of the following piecewise function. [27,3) (-22,3] (27,3] [-22,3)

Otrada [13]

Answer:

The answer is "(27,3]"

Step-by-step explanation:

Please find the complete question in the attached file.

$\to f(-5) = (-5)^2 + 2 = 25 +2 =27\\\\\to f(7)= 7-4 = 3\\\\answer \ is = ( 27, 3]\$