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Svetllana [295]
3 years ago
11

2x-y=-4-2x+y=3How to solve using systems elimination ​

Mathematics
1 answer:
VikaD [51]3 years ago
4 0
Two -2x and 2x cancel out since there opposites

As well as y

Then your answer should be 0=-1
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Write the equation of the line that passes. Throught the point (-2,1)and (0,8)put your aswer in fully reduce point slope form un
Soloha48 [4]

Answer:

Step-by-step explanation:

first, we need to find the slope

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

(-2,1)...x1 = -2 and y1 = 1

(0,8)...x2 = 0 and y2 = 8

now sub

slope = (8 - 1) / (0- (-2) = 7/(0 + 2) = 7/2

point slope form : y - y1 = m(x - x1)

using point (-2,1)....x1 = -2 and y1 = 1

slope(m) = 7/2

now sub

y - 1 = 7/2(x - (-2) =

y - 1 = 7/2(x + 2) <==== here is one answer

y - y1 = m(x - x1)

using point (0,8)...x1 = 0 and y1 = 8

slope(m) = 7/2

now sub

y - 8 = 7/2(x - 0) <===== another possible answer

6 0
3 years ago
Some help plz i don’t understand ;(
alekssr [168]

Answer:

7,24,25

explanation:

it is in the pythagorean triples

5 0
3 years ago
This isosceles triangle has two sides of equal length , a, that are longer than the length of the base , b. The perimeter of the
Sholpan [36]
We are give the equation of the perimeter of the triangle as follows:
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Now, if we want to calculate the length of the base, all we have to do is isolate the b in one side of the equation as follows:
b = 15.7 - 2a

We know that a = 6.3 cm, therefore, the length of the base can be calculated as follows:
b = 15.7 - 2(6.3) = 3.1 cm
4 0
3 years ago
HI quick qestion formula for volume
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Answer:

b times l times w........

8 0
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Hayley bought 3 1/7 of southern potato salad and 2 1/4 lb of german potato salad. how many pounds of potato salad did she buy?
storchak [24]
Answer: 5 11/28

Improper Fraction Answer: 151/28

Decimal Answer: 5.3928571
3 0
2 years ago
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