All categories

2 years ago

I can not find the answer could you guys help me

Mathematics

1 answer:

BARSIC [14]2 years ago

5 0

Answer: A

Step-by-step explanation:

Power rule: derivative of x^(something) is (something)* x (something -1). Rewrite the second term as x^(-7) and it all becomes -3x^(-3-1) + (-7)x^(-7-1). Rest is just writing it in a "nicer" form

You might be interested in

plz help ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

katen-ka-za [31]

Answer:

B. $5039.58

Step-by-step explanation:

compound interest formula: amount = p(1 + \frac{r}{n})^{nt}

p= principal ($2,300)

r= interest rate as a decimal (4% = 0.04)

n= number of times the principal is compounded per year (annually = onceper year so 1 time per year)

t= time in years (20 years)

new equation: amount = 2300(1+\frac{0.04}{1} )^{1*20}

That equation equals $2,739.58 which you add to the principal.

$2,739.58 + $2,300 = $5039.58

hope this helps :)

7 0

2 years ago

Read 2 more answers

*Find the area of the figure below. Use 3.14 for pi.<br><br> Area= square inches

alex41 [277]

Answer:

100.26

Step-by-step explanation:

You would find the area of the semi circles on either side of the rectangle by plugging the diameter into the formula for the area of a circle. Then you would add that to the are of the rectangle.

This is what that would look like:

1. Divide 6 (the diameter) by 2 because $r=\frac{1}{2} d$

$r=\frac{1}{2} 6$

$r=3$

2. plug into the formula $A=\pi r^{2}$

$A=\pi 3^{2}$

3. square the 3

$A=\pi 9$

4. multiply 9 by 3.14 (pi)

$A=28.26$

This means the area of both the semi circles added together would equal 28.26

Then you would use the formula $A=lw$ to find the area of the rectangle

1. plug in the numbers given

$A= 12$ · $6$

2. solve

$A=72$

Then add the area of the semicircles to the area of the rectangle

$A=28.26+72$

to get the area of the entire figure:

$A=100.26$

3 0

3 years ago

Frank is investing his money. He thinks that he should make $8 for every $100 he invests. How much does he expect to make on an

melisa1 [442]

Answer:

537.5

Step-by-step explanation:

4 0

3 years ago

Sixty-five % of the spectators at the basketball game are male and there are 280 female spectators.

notsponge [240]

A). Simply, subtract 100 percent minus 65 percent, which gives you the answer 35 percent.

b). So, to find the total number you add 280 plus 65 percent, which gives you the answer, 462.

c). To find this, simply subtract 462 minus 280, which gives you the answer, 182.

Hope this helps!
♤MidnightQueen

3 0

3 years ago

Read 2 more answers

What is the best estimate for 8.3 x 4.9?

sammy [17]

Answer:

40.67

Step-by-step explanation:

I calculated it

6 0

3 years ago

I can not find the answer could you guys help me​

I can not find the answer could you guys help me