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Trava [24]
3 years ago
15

The sum of 8 and a certain number is equal to the product of the number and 3 find the number​

Mathematics
1 answer:
gladu [14]3 years ago
3 0

Answer:

4

Step-by-step explanation:

8+4=3x4

12

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Helppppp mereeeeeeeeeee
Vera_Pavlovna [14]

Answer:

A. (x-5)(x-7)

B. It means the zeroes of the graph are at (5,0) and (7,0)

Step-by-step explanation:

A

find what + what equals -12, and multiples to 35.

List all multiples of 35.

1 35

<em>5 7</em>

- 12 is negative so that means it is -5 and -7

(x-5)(x-7)

B

The factor numbers are where the zeroes on a graph are, <u>but</u> whatever is in parenthesis, the number is opposite on a graph (e.g. if it was (x-3), the zero would be (3,0)

4 0
4 years ago
What is the answer to 21=(x+3)2
IceJOKER [234]
First, distribute 2 to the (x+3) to get:
21 = 2x+6
subtract 6 from both sides to get:
15 = 2x
Finally, we divide both sides by 2 to simplify x to:
x = 7.5 (OR) x = 7  \frac{1}{2}
(Just so you know, if you pick a brainliest answer, both you and the person who got the brainliest answer get some points.
3 0
4 years ago
If x^(2) = 64 and y^(2)= 121 what is the value of x-y?
GalinKa [24]

Step-by-step explanation:

<em>the value of x is 8</em>

8^(2) = 64

the value of y is 11

11^(2) = 121

x - y

= 8 - 11

= -3

<h3>#CMIIW</h3>

3 0
3 years ago
The perimeter of a rectangle can be found using the expression 2/ +2w where I represents length and e represents width. Find the
Snezhnost [94]

Answer:

420

Step-by-step explanation:

5 0
3 years ago
What number is 40% of 30?
Darya [45]

Answer:

12

Step-by-step explanation:

40/100*30

=12

6 0
3 years ago
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