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aivan3 [116]
4 years ago
5

Hurry I'm Timed!!!!The following scatter plot represents the scores of thirteen students on a geography test compared to the num

ber of hours that each student studied for the test. Use the line of best fit to predict the score of a student who studied three hours for the test.
80
85
90
95

Mathematics
2 answers:
Lorico [155]4 years ago
8 0
95 if you look in the middle of the three hrs by 95 u will see I am right
sveta [45]4 years ago
4 0

Answer:

95

Step-by-step explanation:

Going to 3 hours along the x-axis, we go up until we hit the line.

We hit the line between 90 and 100; this is at y = 95.

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The function y=-16x^2+16x+32 represents the height in feet of a firework x seconds after it is launched
Nadya [2.5K]

Answer:

36feet

Step-by-step explanation:

Since we are not asked what to find, we can as well find the maximum height reached by the rocket

At max height, velocity is zero

V = dy/dx = 0

dy/dx = -32x + 16

0 = -32x+16

32x = 16

x = 16/32

x = 0.5s

Get the maximum height

y = -16(0.5)^2+16(0.5) + 32

y = -4+8+32

y = 36feet

Hence the max height reached by the rocket is 36feet

8 0
3 years ago
What is <br><img src="https://tex.z-dn.net/?f=56%20%3D%208%20%5Ctimes%20p%20%3D%20" id="TexFormula1" title="56 = 8 \times p = "
ANEK [815]
So to solve
56 = 8 * p
divide both sides by 8 to isolate p and solve how much it is 
7 = p
so 
56 = 8 * 7

Hope this helps :)
7 0
4 years ago
Tell me your cringes pick up lines
Bond [772]

Answer:

Are you a speeding ticket? Because you look fine.

Yikes, that was cringey

4 0
2 years ago
Read 2 more answers
Which of the following is a solution of 4x + 3x = 12?<br>(a) (4,0)<br>(b) (3,0)​
BabaBlast [244]

Answer:

B

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Please!!! I’ll mark Brainliest!! I really need help!!!
Tatiana [17]

Answer:

(x, \:  \: y) = (4, \:  \:  -  \frac{1}{4} )

Step-by-step explanation:

\frac{1}{4} x + \cancel{ 1 \frac{1}{2} y} =  \frac{5}{8}...(1)  \\  \\  \frac{3}{4} x  - \cancel{ 1 \frac{1}{2} y} = 3 \frac{3}{8} ...(2) \\  -  -  -  -  -  -  -  -  - \\(adding\: equations\: 1 \:\&\:2) \\ ( \frac{1}{4}  +  \frac{3}{4} )x =  \frac{5}{8}  + 3 \frac{3}{8}  \\  \\  \frac{4}{4} x =  \frac{5}{8}  +  \frac{27}{8} \\  \\   x =  \frac{32}{8} \\  \\ x = 4 \\  \\ plug \: x = 4 \: in \: equation \: (1) \\  \\  \frac{1}{\cancel 4}  \times \cancel 4 + 1 \frac{1}{2} y =  \frac{5}{8}  \\  \\ 1 +  \frac{3}{2} y =  \frac{5}{8}  \\  \\ \frac{3}{2} y =  \frac{5}{8}   - 1\\  \\ \frac{3}{2} y =  \frac{5 - 8}{8}\\  \\ \frac{3}{2} y =  \frac{ - 3}{8}\\  \\ y =   \frac{ - 3}{8} \times  \frac{2}{3}  \\  \\ y =  \frac{1}{4}  \\  \\ (x, \:  \: y) = (4, \:  \:  -  \frac{1}{4} )

5 0
3 years ago
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