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Art [367]
3 years ago
12

Simplify the following expression: 9 – 3x + (-6x) + 4

Mathematics
1 answer:
natima [27]3 years ago
8 0

Answer:

-9x + 13

Step-by-step explanation:

9 -3x +(-6x) +4

you will add -3x+(-6x), then add 9+4

-3x+(-6x) = -9x   (a negative pus and negative = a negative

9 +4 = 13

-9x + 13

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HELP PLEASE <br><br> this is geometry and i don't understand anything on this test
sveta [45]

Answer:

It could be 8 or 5. I think it's 5

Step-by-step explanation:

This is a pretty weird problem. I see the DC is 10 so then one would think that it is 5. EF however is 7. I think the most logical answer would be 5. Using process of elimination, we can narrow it down to 5 and 8 but I feel that 5 makes more sense. the other 2 sides are obviously longer so 5 is most likely correct.

8 0
3 years ago
3. Given: a+b=12 and ab=9<br> Use (a + b)2 to find a² +bº. (Do not solve for a and b individually)
LenKa [72]

Answer:

a²+b²=126

Step-by-step explanation:

(a+b)²=a²+b²+2ab

(12)²=a²+b²+2×9

144=a²+b²+18

a²+b²=144-18=126

7 0
3 years ago
Put the following equation of a line into slope-intercept form, simplifying all fractions. 15x - 3y = 15​
MaRussiya [10]
Slope= 5
X-intercept= -5/5 = -1
Y-intercept= 5/1 = 5.0000000
8 0
3 years ago
Pls help i give brainliest
slavikrds [6]

Answer: B no

Step-by-step explanation:

Plot in the x and y coordinates into the equation to solve it.

The x coordinate is  4 and the y coordinate is 1  

-4(4) +3(1)= 2

-16 + 3 = 2

-13 ≠2

-13 does not equal 2 so (4,1) is not a solution.

5 0
4 years ago
Read 2 more answers
Point A is at -5 and point B is at 11.<br> What is the distance of AB?
Allisa [31]

Answer:

The distance of AB would be 16.

Step-by-step explanation:

There are several ways to do this. But the way that would probably be easier for u to understand would be if you found the distance of -5 from 0. Remember targ distance is always positive so the distance would be 5 points. Then u have to get to point B or also 11. That means you have to move 11 points Altogether if you add 5 and 11 you get 16.

3 0
3 years ago
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