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Gre4nikov [31]
3 years ago
7

Find two numbers a+b is -4 and difference a-b is 4 what's your answer

Mathematics
1 answer:
Trava [24]3 years ago
6 0

Answer:

a=0, b=-4

Step-by-step explanation:

a+b=-4.....(1)

a-b=4.......(2)

(1)+(2): 2a=0

a=0

0+b=-4

b=-4

(a, b) =(0,-4)

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victus00 [196]
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6 0
3 years ago
Read 2 more answers
What is the slope of (5, -3) and (8, -5) tell me how you got your answer
Viktor [21]
To find the slope, you find the change in y-values over the change in x-values. 

Your first point is: (5,-3)
Your second point is (8, -5)
Your x-values are: 5 and 8
Your y-values are -3 and -5
The equation to find slope is: slope = (y2-y1)/(x2-x1)
       - The 2s and 1s indicate which point the values belong to, it makes sure               that you align the right x-value with its correct y-value. It doesn't matter               which point you assign as 1 or 2, as long as the values match
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Now you plug in out values :
slope = (y2-y1)/(x2-x1)
slope = (-5-(-3))/(8-5)
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6 0
4 years ago
Read 2 more answers
What is the value of the expression (−2 4/5)÷(−1.4)
AysviL [449]

Answer:

2

Step-by-step explanation:

3 0
3 years ago
A company charger shipping fee that is 4.5% of the purchase price for all items it ships. What is the fe to ship an item that co
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Answer:

This is an percentage change question, by any chance you have a maths textbook, look for units that contains the topic: Percentage Change. Now, let's get solving! :)

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No addition/totaling needed as the question asked ONLY for the shipping fees.

Stay safe and Merry Christmas! :)

3 0
3 years ago
Help asap help asap for a brainlist
Lunna [17]

Answer:

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Step-by-step explanation:

Step 2 and 3 are incorrect,

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