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steposvetlana [31]
4 years ago
12

Marisa needs 1.4 hours to comeplete 7 homework problems. How long does each problem take? A: 0.1 hours B: 0.2 hours C: 0.7 hours

or D: 1 hour?
Mathematics
2 answers:
Lady_Fox [76]4 years ago
6 0
B. 0.2 because 1.4 divided by 7 is 0.2
neonofarm [45]4 years ago
6 0
B: it takes 0.2 hours each. Formula 1.4/7 = 0.2
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Suppose that when your friend was born, your friends parents deposited $2000 in an account paying 5.9% interest. What will the a
irina1246 [14]

Answer:

FV= $4,725.74

Step-by-step explanation:

Giving the following information:

Initial investment (PV)= $2,000

Number of periods (n)= 15 years

Interest rate (i)= 5.9% = 0.059

<u>To calculate the Future Value, we need to use the following formula:</u>

<u></u>

FV= PV*(1 + i)^n

FV= 2,000*(1.059^15)

FV= $4,725.74

3 0
3 years ago
The length of two complementary angles are x and 2x+12. Find the measures of the angles.
Shtirlitz [24]

There's no such thing as the "length"of an angle. 
But we know what you're getting at.

You have said that the angles are complementary.  If two angles are
complementary, then  their sum is 90 degrees, so we can take your
two angles and write:

                       <u>x</u>  (one angle) plus <u>(2x + 12)</u> (the other one) <u>= 90 degrees

</u>
<u />                          x + 2x + 12  =  90<u>

</u>
Subtract 12 from each side:     x + 2x  =  78

Add the x's on the left side:        3x      =  78

Divide each side by  3 :                x      =  26 degrees

One angle is 'x'  =  <em>26 degrees</em>

The other one is (2x + 12) = 52+12 = <em>64 degrees</em>
4 0
4 years ago
Need help on number 22 I really need help!!!!!!!!! If u can help on 23 that would be awesome!!!!!
xeze [42]
22. If you add a number to a series of data, and it doesn't change the mean, that number MUST equal the mean. Try adding the mean number into it, hopefully it doesn't change the mode or median either.

23. Basically I think (can't quite read all the question!) just work out the circumference of a circle with radius 20 feet (urgh imperial), ie 2*pi*r so 40pi.
4 0
3 years ago
Read 2 more answers
If y = -5x + 2 were changed to y=-7x+ 5, how would the graph of the new line compare with the first one? A. The new graph would
Anika [276]

D- The new graph would be steeper than the original graph, and the y- intercept would shift up 3 units.

The purple line is y=-5x + 2

The pink line is y = -7x + 5

5 0
3 years ago
What is the greatest common factor of 9x^{2}y9x 2 y and 5x^{4}y^{2}5x 4 y 2 ?
Musya8 [376]
ANSWER

The greatest common factor is
{x}^{2} y

EXPLANATION

We want to find the greatest common factor of

9 {x}^{2} y

and

5 {x}^{4}  {y}^{2}

The prime factorizations are;


9 {x}^{2} y =  {3}^{2}  \times  {x}^{2}  \times y


and


5 {x}^{4}  {y}^{2}  = 5 \times  {x}^{4}  \times  {y}^{2}


The product of the least powers of the common factors is the greatest common factor.


=  {x}^{2} y
7 0
4 years ago
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