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3 years ago

How do you do -5+-9

Mathematics

2 answers:

Marat540 [252]3 years ago

6 0

Answer: −14

Step-by-step explanation:

<h3> Just add the absolute value of each number together, put a negative sign in front, and you have your answer!</h3>

GarryVolchara [31]3 years ago

5 0

Answer:

-14

Step-by-step explanation:

adding 2 negatives gives you a negative

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Find the midpoint of the segment whose endpoints are (8,6) and (-2,-8).

inna [77]

Answer:

$\huge{ \fbox{ \sf{ \: ( \: 3 \: , \: - 1 \: )}}}$

Step-by-step explanation:

$\star{ \sf { \: Let \: the \: points \:be \: A \: and \: B}}$

$\star{ \sf{ \: Let \: \: A (8,6) \: be \: (x1 \:, y1) and \: B(-2,-8) \: be \: (x2 \:, y2)}}$

$\underline{ \sf{Finding \: the \: midpoint}}$

$\boxed{ \rm{Midpoint \: = \: ( \frac{x1 + x2}{2} \: , \: \frac{y1 + y2}{2} )}}$

$\mapsto{ \sf{Midpoint = ( \frac{8 + ( - 2)}{2} \: , \: \frac{6 + ( - 8)}{2} )}}$

$\mapsto { \sf{Midpoint = ( \frac{8 - 2}{2} \: , \: \frac{6 - 8}{2} }})$

$\mapsto{ \sf{Midpoint = ( \frac{6}{2} \: , \: \frac{ - 2}{2}) }}$

$\mapsto{ \sf{Midpoint = (3 \: \: , - 1)}}$

Hope I helped!

Best wishes!! :D

~ $\sf{TheAnimeGirl}$

5 0

3 years ago

What is an equation of the line that passes through the points (5, 2) and (-5, -6)?

lawyer [7]

Answer:

y=4/5x + 2

Step-by-step explanation:

y=mx+b

find slope which is 8/10=4/5

choose a y and plug into problem

8 0

3 years ago

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On a test Denzel answers that 3x + 6a + 7 is equivalent to 3(x + 2a +7). Is Denzel correct, why or why not? * Yes, he is correct

emmainna [20.7K]

Answer:

No, he is not correct because the constant in his answer should have been 21 not 7.

Step-by-step explanation:

$3(x+2a+7)=3x+6a+21$

Therefore, the correct answer is the fourth; he should have put 21.

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3 years ago

-2-5(4n-6)=-132 not really sure how to do this one ..

uranmaximum [27]

All you have to do is follow PEMDAS (if you don't know what that is, search it up).

-2-5(4n-6)=-132

Distribute the 5 to everything in the parentheses.

-2-20n+30= -132

Combine like terms.

-20n+28 = -132

Subtract 28 from both sides.

-20n = -160

Divide by -20 on both sides.

n = 8

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3 years ago

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A culture started with 2,000 bacteria. After 2

luda_lava [24]

Answer:

14,000

Step-by-step explanation:

if wrong i'm sorry

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3 years ago

How do you do -5+-9​

How do you do -5+-9