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Shalnov [3]
4 years ago
5

What 2 numbers multiply to -63 and add up to 7

Mathematics
1 answer:
KiRa [710]4 years ago
6 0
2 numbers multiply to -63 and add up to 7
Forming the equation, we need to let
x = first number
y = second number

xy = -63
x+y = 7 --> y = -x + 7

x (-x + 7) = 63
-x^2 +7x = 63
x^2 - 7x = -63
x^2 - 7x + 63 = 0

From the equation above, you need to find the roots.
After getting the roots, then you can decide that those are the two numbers.
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The answer to this division problem
Step2247 [10]

28.860465 hope this helped

7 0
4 years ago
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plz help me suzy spent 6 7/8 days working on her English paper 3 1/6 days on her science project and 1 1/2 days studying for her
malfutka [58]

Answer:

English time + Math Time =  6 7/8 + 1 4/8 =  7 7/8+4/8  =  8 3/8

8 3/8 - Science time = difference =   8 3/8- 3 1/6 = 5 5/24

She spent 5 5/24 days more on her English and Math test than Science

Step-by-step explanation:


5 0
4 years ago
Fourteen is 6 less a number (n). Which equation shows this relationship?
Klio2033 [76]

Answer:

14+6=n=20

Step-by-step explanation:n=20

8 0
3 years ago
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Can i have the answer to this <br> pic is below
eduard

Answer:

question 1: m = 3/2

question 2: m = 1/95

Step-by-step explanation:

Slope intercept form of equation is of form

y = mx+c

where m is the slope of line and c is the y intercept of the line.

Y intercept is point on y axis where the line intersects the y axis.

____________________________________

given

y = 3/2 x

comparing it with y = mx+c

we have m = 3/2 .

since y = 3/2 x does not have constant term so it can be taken as 0. hence c is 0

_________________________________________

slope for any two point (x1,y1) and (x2,y2) on coordinate plane is given by

slope = (x2-x1)/y2-y1)

From the given table lets take two point as (2,190) and(4,380)

Thus, slope m is given by

m = (4-2)/(380-190) = 2/190 = 1/95

m = 1/95

Though, slope can be taken by dividing y by x (y/x). It is good practice to use two point form formula as given above . Provided two points are given

Please mark it the brainliest.

4 0
3 years ago
2.36 to the nearest whole number. Help please
melisa1 [442]

Answer:

2

Step-by-step explanation:

Since if it's 5 or higher you go up but if it's 4 or lower you stay the same. And since 2.36 doesn't have the .5 it would round to 2

7 0
3 years ago
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