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drek231 [11]
3 years ago
6

If M = 5x2 + 7x-4 and N = -3x2-4x+5, then M -N equals

Mathematics
1 answer:
Yuki888 [10]3 years ago
6 0

Answer:

M-N=4

Step-by-step explanation:

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Omg please help for brainlist !!!!!!!!!!!!!!!
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Answer:

1a

Step-by-step explanation:

8000*0.25=2000

2000*0.25=500

500*0.25=125

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3 years ago
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Multiplying then divide
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3 years ago
For questions 1-3, decide for each graph whether the equation shown is a function. Label each graph
ruslelena [56]

Answer:  Not a function

<u>Step-by-step explanation:</u>

The graph fails the vertical line test.  In other words, when you draw a vertical line anywhere through the curve, the line passes through two points.

Bonus: If you do not have a graph, it is not a function if there is one x-value that has two different y-values.

For example, If (1, 2) and (1, -2) lie on the curve, then it is NOT a function because the x-value (1) has two different y-values (2 & -2).

4 0
3 years ago
A rock is thrown into the air. The height of the rock is modeled by s(t) = −16tଶ + 64t + 80 feet for t ≥ 0 seconds. The rock hit
ExtremeBDS [4]

Answer:

144 feets

Step-by-step explanation:

Look on s(t) like quadratic function. We need to find maximum of the function using 1st diferetioal:

s(t)=-16t^2+64t+80

s’(t)=-32t+64

S’(t)=0 if t=2

For t>2, s’(t)<0

For t<2, s’(t)>0. So the maximum od function is in the point 2.

S(2)=-16*4+64*2+80=-64+128+80=144

6 0
3 years ago
When Chef Alice makes rice pilaf for 30 people, she uses 15 cups of chicken broth and 10 cups of rice. Dan wants to make the sam
AVprozaik [17]

Answer:

3 cups rice 4 1/2 cups of chicken broth

15 over 30 equals 1/2 cup per person

10 over 30 equals 1/3 per person multiply each by 9 and you have your answer!

5 0
3 years ago
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