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Lyrx [107]
3 years ago
5

3x-2y=-5 and 4x+2y=-16​

Mathematics
1 answer:
podryga [215]3 years ago
7 0

Answer:

x=-22/4

y=-3

Step-by-step explanation:

3x-2y=-5

4x+2y=-16

we <u>add</u> the equation

7y=-21

y=-3

then we find the x by taking a random equation

I take 4x+2y=-16

4x+2(-3)=-16

4x-6=-16

4x=-22

x=-22/4

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The height h, in feet, of a ball that is released 4 feet above the ground with an initial velocity of 80 feet per second is a fu
gulaghasi [49]

Answer with Step-by-step explanation:

The height of the ball from the ground as a function of time is given by

h(t)=-16t^2+80t+4

The height of the ball at any instant of time can be found by putting the value of time 't' in the above relation as

Part a)

Height of ball after 2 seconds it is released is

h(2)=-16\times 2^2+80\times 2+4=100feet

Part b)

Height of ball after 4 seconds it is released is

h(4)=-16\times 4^2+80\times 4+4=68feet

4 0
3 years ago
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look at the figure shown below which step should be used to prove that point a is equidistant from points c and b
JulijaS [17]
D
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C
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B
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A
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3 0
3 years ago
Juan had some pieces of gum. He gave 23 pieces to his brother. His sister then gave him 5 more pieces. Now he has 39 pieces of g
artcher [175]

Answer:

This equals 11

Step-by-step explanation:

7 0
2 years ago
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Can someone please help me with these questions thank you
saul85 [17]

Answer:A) What are the side lengths of the original triangle, ABC?

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7 0
2 years ago
ok so i did learn this and was really good at it but now that I have to do it I cant.....how do i find the perimiter and area...
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Hi!

So what you want to do is to find the perimeter add the sides up 4 times or mutiply 3.5 and 4. It's the same thing

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Area: 3.5 * 3.5 = 12.25

Hope this helps!!

7 0
3 years ago
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