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TEA [102]
3 years ago
6

Solve for x in the equation (x + 7) (x minus 9) = 25

Mathematics
1 answer:
Artist 52 [7]3 years ago
3 0

Answer:

10.43398113

Step-by-step explanation:

decimal for

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A triangle has a perimeter of 16x + 4. If Side 1 is 3x + 2, Side 2 is 8x + 7, what is the measure of Side 3?
scoundrel [369]

Answer:

5x - 5

Step-by-step explanation:

To find the missing side, add the two sides together and subtract them from the perimeter.

side 1 + side 2

3x + 2 + 8x + 7

combine like terms

11x + 9

Subtract from the perimeter

16x + 4 - (11x + 9)

rewrite as an addition problem, so you need to change the signs inside the parentheses.

16x + 4 + (-11x -9)

Now combine like terms

5x - 5

8 0
3 years ago
In a telephone poll, 11 people said they like shopping and 9 people said they do not like shopping. What is the ratio of the num
Hitman42 [59]

Answer:

9:11

Step-by-step explanation:

well 11 and 9 can be simplified so......

6 0
3 years ago
3. Mrs. Marco has 35 students in her science class. If her class increases
sashaice [31]

Step-by-step explanation:

students in previous year=35

students in next year=42

difference=42-35

=7

Now,

change%=7/42×100%

=16.67%

4 0
3 years ago
9. Please help<br> Xxxxxx
Alborosie

Answer:

a=45°

Step-by-step explanation:

It should equal to 360° so if u add 115+110+90, you get 315 and you subtract that from 360. 360-315= 45

7 0
3 years ago
Read 2 more answers
HELPPPP PLEASEEEEE<br> !!!!!!
Vera_Pavlovna [14]

We can use the points (13, 11) and (14, 6) to solve.

Slope formula: y2-y1/x2-x1

= 6-11/14-13

= -5/1

= -5

Therefore, the slope is -5.

Best of Luck!

7 0
3 years ago
Read 2 more answers
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