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kondor19780726 [428]
3 years ago
12

Eight less than 7 times a number is -29​

Mathematics
2 answers:
spayn [35]3 years ago
6 0
-1????? Maybe I’m not sure
Zielflug [23.3K]3 years ago
6 0
The equation would be
7x-8=-29
you add 8 to both sides and get
7x=-21
you divide by 7 and get
x=-3
that’s the answer
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How can I do this exercise? <img src="https://tex.z-dn.net/?f=%5Cfrac%7B-2%7D%7B12%7D%20%3D%20%5Cfrac%7Bx%20%2B%201%7D%7Bx%20%2B
matrenka [14]

Answer:

-8/7 =x

Step-by-step explanation:

-2         x+1

----- = -----------

12         x+2

Using cross products

-2 (x+2) = 12 (x+1)

Distribute

-2x -4 = 12x+12

Add 2x to each side

-2x+2x -4 = 12x+2x+12

-4 = 14x +12

Subtract 12 from each side

-4-12 = 14x

-16 = 14x

Divide each side by 14

-16/14 =14x/14

-8/7 =x

3 0
3 years ago
Find the domain of the rational function 9x/(x+5)(x+3)
xenn [34]

Answer:

the domain is : D = ]-∞ , -5[ U ]-5 , -3[ U ]-3 , +∞[

Step-by-step explanation:

hello :

f(x) = 9x/(x+5)(x+3)

f exist for : (x+5)(x+3) ≠ 0

(x+5)(x+3)=0

x+5=0 or x+3=0  means : x= - 5 or x= -3

the domain is : D = ]-∞ , -5[ U ]-5 , -3[ U ]-3 , +∞[

7 0
3 years ago
3x+18x+5x-2=180<br>what is the angle measurement for:<br>3x,18x,and 5x,-2?<br>​
lozanna [386]

Answer:

3x = -18 (x = -6)

18x = 108 (x = 11)

5x = 90 (x = 18)

Step-by-step explanation:

7 0
3 years ago
A regression-based forecast has yielded a coefficient of correlation (r) equal to 0.754. What is the coefficient of determinatio
Andreyy89

Answer:

0.568516

Step-by-step explanation:

To find the the Coefficient of determination you simply square r.

Just make sure you have the original r value and not the rounded value.

0.754^2 = 0.568516

and then depending on how many decimals you need to round to...

6 0
3 years ago
Find the aspect ratio of a computer screen that measures 12 inches by 16 inches.
alexdok [17]

Answer:

3:4

Step-by-step explanation:

That ratio would be 12:16, or 3:4.

8 0
3 years ago
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