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Anettt [7]
2 years ago
7

Solve for x. ←2x+6 X+9 x = [?]

Mathematics
1 answer:
Scorpion4ik [409]2 years ago
4 0

Answer:

3

Step-by-step explanation:

A simple way to solve this is by substituting, we start with trying 1 for x, 2+6=8, and 1+9=10. Because the two values are different, that means 1 is the incorrect value. We can try 2, 4+6=10, and 2+9=11, once again inequivalent. We finally try 3, and 6+6=12 and 3+9=12 meaning x must be 3

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What is the perimeter of △ABC to the nearest whole number?
cricket20 [7]

Answer: B

Perimeter= 92.52

x=28.09

y=39.43

Step-by-step explanation:

sin39/25=sin44/x

x=28.09

sin97/y=sin39/25

y=39.43

39.43+28.09+25= 92.52

4 0
3 years ago
Please please help me with this please
ziro4ka [17]

Answer:

y + 20 = 9(x + 2)

Step-by-step explanation:

The equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the lie

Calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (- 2, - 20) and (x₂, y₂ ) = (9, 79)

m = \frac{79+20}{9+2} = \frac{99}{11} = 9

Using (a, b) = (- 2, - 20), then

y - (- 20) = 9(x - (- 2)), that is

y + 20 = 9(x + 2)

4 0
3 years ago
How do I do this problem??
KiRa [710]
First find the difference of the numerator. to do this multiply 1/x by 2 and 1/2 by x. you should get (2-x)/2x. now moving on to the whole fraction. then multiply the (2-x)/2x by 2x and the (x-2) by 2x. you should get (2-x)/(2x)(x-2). now factor out a negative from the (x-2) at the denominator to get -(2-x). so now you can cancel the (2-x) from the numerator and denominator! the answer will be 1/-2x! :)
8 0
4 years ago
10+4(-8q-4)<br>simplify to create an equivalent expression​
Alekssandra [29.7K]
10+4(-8q-4)
14(-8q-4)
then distribute 14 to -8q-4
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3 years ago
Read 2 more answers
Let f(x) = 2x + 2. Solve f−1(x) when x = 4.<br><br> a. 1<br> b. 3<br> c.4<br> d. 10
Paladinen [302]
Find the inverse of the first function. then plug in the answer to x. afterwards solve it and the answer is 1, so its a
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3 years ago
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