All categories

4 years ago

Factor completely. 5x2 - 45

Mathematics

2 answers:

vagabundo [1.1K]4 years ago

7 0

Answer:

5(x-3)(x+3)

Step-by-step explanation:

shepuryov [24]4 years ago

7 0

Answer:

5(x + 3)(x - 3)

Step-by-step explanation:

Both terms in this expression have 5 in common---they both have a factor of 5. Therefore you can factor out a 5 like this:

5(x^2 - 9)

This can be even further factored. Find what two numbers multiply to -9 but add to 0. -3 and 3 are numbers that work. You can make x^2 - 9 become(x + 3) and (x - 3).

5(x + 3)(x - 3) is the final answer simplified completely.

You might be interested in

What is 30+11x-12-6x

Sladkaya [172]

11x-6x=5x
30-12=18
5x+18

8 0

3 years ago

Read 2 more answers

What is the value of x^2 - 3y + 5x + 2 whenx = 7 and y = 4?

PilotLPTM [1.2K]

Answer:

Step-by-step explanation:

$x^2 - 3y + 5x + 2 \\ \\ = {7}^{2} - 3(4) + 5(7) + 2 \\ \\ = 49 - 12 + 35 + 2 \\ \\ = 74$

4 0

3 years ago

To the nearest degree, what is m_A? Explain

noname [10]

Answer:

$A= 53$

Step-by-step explanation:

Given

$BC = 9,6$

$AC = 7.2$

Required: Angle A

This is calculated using:

$tan\ A = \frac{Opposite}{Hypotenuse}$

From the attachment;

$Opposite = 9.6$

$Adjacent = 7.2$

So:

$tan A =\frac{9.6}{7.2}$

$tan A =1.333$

Take arctan of both sides

$A= tan^{-1}(1.333$

$A= 53$ ----- approximated

7 0

3 years ago

How to convert 2 5/8 to a decimal?

Reptile [31]

You make it a improper fraction and it would be 21/8 and then divide 21 by 8 and you get 2.625

8 0

3 years ago

Read 2 more answers

1. WRUF 103.7 FM is giving away tickets to a concert. Tim, the general manager of the

Eva8 [605]

Answer:

Kindly check explanation

Step-by-step explanation:

Given that :

Upper level seat = $25

Mid level seat = $40

Number of tickets to give away is at least 25

Budget constraint = $1000

part A: write a system of two inequalities that describe this situation

Number of tickets constraint:

Upper level + mid level ≥ 25

u + m ≥ 25

Cost constraint :

$25u + $40m ≤ $1000

Part B:

Give away 10 upper level seat tickets and 15 mid level seat tickets

8 0

3 years ago