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Solnce55 [7]
3 years ago
5

Evaluate the expression x^2+5x-19 for x=-4

Mathematics
1 answer:
mina [271]3 years ago
3 0

Answer:

13.708

Step-by-step explanation:

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Solve the equation for y.<br> 8x – 9y = 11
pav-90 [236]
8x-9y=11

First you move the 8x because you have to leave the 9y alone

8x-9y=11
-8x        -8x

-9y=11-8x

Now you have to move the -9, so the inverse of multiplying is dividing so you divide -9.

-9y/-9= 11/-9 -8x/-9

since you can't have negative as a denominator it would be:

y= -11/9+8x/9

<span>You have to change the signs</span>
3 0
3 years ago
Move the correct words to the angle.
ElenaW [278]

Answer:

top box: ray

bottom box: endpoint

Step-by-step explanation:

top box: a ray is a line that doesn't stop and that is represented by a arrow on the end of it

bottom box: an end point is where a ray, or line segment stop and since i see two rays that stop there it is an endpoint

7 0
3 years ago
How do to solve 7x-1 over 22 = 3x+1 over 10
vodka [1.7K]

Answer:

7x-1/22 = 3x+1/10

Multiply both sides of the equation by the Lowest common Multiple of the denominators(22 and 10). This is done to clear the fractions.

The LCM of 22 and 10 is 110

So

110 x(7x-1/22) = 110 x (3x+1/10)

110/22 =5

110/10 = 11

So the eqn now becomes

5(7x-1) = 11(3x+1)

Opening the parentheses

35x - 5 = 33x + 11

Collect Like Terms

35x - 33x = 11 + 5

2x = 16

x= 8.

6 0
3 years ago
How does acidic soil negatively affect living things?
Murrr4er [49]

Answer:

B. The acidity can destroy essential nutrients in the soil, such as amino acids or nitrates.

8 0
2 years ago
Help plz asap..... . ​
LenKa [72]

Answer:

Y=1

Step-by-step explanation:

cause 2x0/2 + 4 x 0 + 1 = 1

6 0
3 years ago
Read 2 more answers
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