1 year ago

This is from Khan academy I have to attach a PNG if you can help me solve it! Thank you!

Mathematics

1 answer:

Elenna [48]1 year ago

7 0

Step-by-step explanation:

$\frac{5 {}^{ - 4x + 7} }{125 {}^{x} }$

$\frac{5 {}^{ - 4x + 7} }{5 {}^{3x} }$

$5 {}^{ - 4x + 7 - 3x}$

$5 {}^{ - 7x + 7}$

You might be interested in

Multiply: (4x^2+4x+1)by(2x^2+x-2)<br><br>no spam step by step explanation

klemol [59]

Answer:

the answer is 34

Step-by-step explanation:

first we put the equation together (4x^2+4x+1)by(2x^2+x-2)

so we multiply the formula together so we (4x^2+4x+1) (2x^2+-2) and that's how you get 34

8 0

2 years ago

Calculate (a) the total installment price, (b) the carrying charges, and (c) the number of months needed to save the money at th

Genrish500 [490]

A) The total installment price is ($28/mo)*(24 mo) = $672.00

b) The carrying charges are $672.00 -500.00 = $172.00

c) The number of months of saving required is 500/28 ≈ 18.

3 0

2 years ago

Read 2 more answers

What the hell is a rotation?

LekaFEV [45]

Answer:

A rotation is when a shape rotates across the x or y axis on a coordinate plane :)

Step-by-step explanation:

4 0

2 years ago

A fair dice is rolled.

Marysya12 [62]

Answer:

$\frac{1}{6}$

Step-by-step explanation:

because a dice has 6 sides, only one of the sides has a number 6 on it so therefor you can only have a probability of 1 over 6

4 0

2 years ago

Three boys and four girls enter a contest at the local movie theater a randomly choose winner will be rewarded free movie ticket

geniusboy [140]

Answer:

4/7

Step-by-step explanation:

the probability that a girl will win free popcorn = number of girls / sum of boys and girls

sum of boys and girls = 4 + 3 = 7

4/7

7 0

1 year ago