Which expression is equivalent to 5(4k+7)? A. 5(7+4k) B.7(5k+4) C.35k+20 D.4k+35

Mathematics

1 answer:

Nata [24]3 years ago

5 0

Answer:

A. 5(7+4k) = 35+ 20k

This is the same as 5(4k+7)

20k+35 is equal to 35+20k

You might be interested in

a leaf hangs from a branch 12 feet in the air. it falls to the ground at a rate of 0.25 feet per second. which graph could repre

Kipish [7]

For this case we have an equation of the form:
$h (t) = (1/2) * (a) * (t ^ 2) + v0 * t + h0
$
Where,
h0: initial height
v0: initial speed
a: acceleration
Substituting values we have:
$h (t) = (1/2) * (- 32) * (t ^ 2) + 0.25 * t + 12
$
Rewriting we have:
$h (t) = -16t ^ 2 + 0.25 * t + 12
$
Note: see attached image
Answer:
$h (t) = -16t ^ 2 + 0.25 * t + 12$

7 0

3 years ago

×-2+2×+4+2×-2=180 what does x equal in this equation.

daser333 [38]

Answer:

x = 36

Here's how I got that:

- Group like terms -

x - 2 + 2x + 4 + 2x - 2 = 180

↓

5x - 2 + 4 - 2 = 180

↓

5x = 180

- Divide both sides by 5 -

5x/5 = 180/5

↓

x = 36

~ That's all folks ~

-Siascon

6 0

2 years ago

You pick 4 digits (0-9) at random without replacement, and write them in the order picked. what is the probability that you have

Sophie [7]

The number of ways of choosing 4 digits from 10 digits without replacement ( order is important) is $P(10,4)=\frac{10!}{(10-4)!} =\frac{10!}{(6)!} =7*8*9*10=5040$ . This is the number of all possible permutations of choosing 4 from 10. The first 4 numbers of your phone number is a unique 4 digit number(4 different digits). The required probability is