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4 years ago

(9x-4)-(3x+2) I need to know how to solve this

Mathematics

1 answer:

Karolina [17]4 years ago

8 0

$(9x-4)-(3x+2)=9x-4-3x-2=6x-6$

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2.5n=45;n=18<br> Determine if the given value is the solution of the equation

Maksim231197 [3]

Well,

2.5(18) = 45
45 = 45

It's as simple as that. n=18 is the solution to the problem.

5 0

3 years ago

Read 2 more answers

Bob ran 5 1/4 miles at a pace of 3 3/8 miles per hour.How long was he running in hours.

nlexa [21]

Answer:

1 5/9

hope it helped

Step-by-step

divide 5 <em>1/4 by 3 3/8 to get 1 5/9</em>

7 0

3 years ago

The radius of a circle is 1 millimeter. What is the circle's area?

mash [69]

Answer:

The circle's area is pi

Step-by-step explanation:

A=πr2=π·12≈3.14159...

6 0

4 years ago

Given the functions k(x) = 2x2 − 7 and p(x) = x − 4, find (k ∘ p)(x).

Fynjy0 [20]

For this case we have the following functions:

$k (x) = 2x ^ 2-7\\p (x) = x-4$

We must find $(k_ {0} p) (x)$ . By definition of compound functions we have to:

$(k_ {0} p) (x) = k (p (x))$

So:

Taking into account that:

$(a-b) ^ 2 = a ^ 2-2ab + b ^ 2$

Different signs are subtracted and the major sign is placed.

$k (p (x)) = 2 (x-4) ^ 2-7 = 2 (x ^ 2-2 (x) (4) + 4 ^ 2) -7 = 2 (x ^ 2-8x + 16) -7 = 2x ^ 2-16x + 32-7 = 2x ^ 2-16x + 25$

Finally we have to:

$(k_ {o} p) (x) = 2x ^ 2-16x + 25$

Answer:

$(k_ {o} p) (x) = 2x ^ 2-16x + 25$

8 0

3 years ago

Solve y = -25x + 600

olga nikolaevna [1]

Answer:

$-\frac{y}{25} +24$

Step-by-step explanation:

5 0

3 years ago