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Gre4nikov [31]
4 years ago
13

Help Me! I don't understand this problem!

Mathematics
1 answer:
alex41 [277]4 years ago
8 0
<h3>Answer: A) -0.83</h3>

Without the actual numeric data coordinates, it is impossible to compute the true r value. Though we can estimate. The data points are negatively correlated in a fairly strong manner. We can draw a straight line close to all of these points, so the r value is going to be fairly close to -1. The closer r is to -1, the stronger the negative correlation. Having r = -1 exactly means all of the points fall on some single straight line that slopes downward.

Choice B is the next best choice, but its correlation isn't as strong. So that's why I ruled it out. Choices C and D are ruled out immediately since they are positive values.

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Please help...........
enyata [817]
On what i need to see what you are talking bout so maybe i can answer it thank u please
7 0
3 years ago
The function h(t)=16t^2+144 represents the height , h(t) , in feet , of an object from the ground at t seconds after it is dropp
mafiozo [28]
0≤h(t)≤144, which means that the height of the object can be between 0 and 144 feet, including those limits.
4 0
3 years ago
A car is driving at 65 kilometers per hour. How far, in meters, does it travel in 4 seconds?
Mumz [18]

Answer:

72.2 m

Step-by-step explanation:

65 km/1 h = (65000 m / 3600s) = 18.05 m/s

Distance = speed * time = 18.05 m/s*4 s = 72.2 m

8 0
3 years ago
James wants to compete in the international speed texting competition next year where participants compete on text speed and acc
makkiz [27]

1a 2.5 characters per second

1b 3 characters per second

1c 3.5 characters per second

1d s = 2 + 0.5m

2a 8 = 2 +0.5m

6=0.5 m

m=12

2b the final speed James wants is 8 cps. sub that in for s. we want to know m. first, subtract 2 from both sides to get 6. then, divide by 0.5, which is 1/2 as a fraction. In order to divide a number by a fraction, you need to invert the fraction and switch operations from division to multiplication. It becomes 2/1 * 6 = 12.

3a 10 r +4 = 8

10r =4

r =4/10=2/5

3b. In this equation, r could be the increase in amount of characters that Lydia can type per second.

4. John buys a small tree that is 5 inches tall. Each month, this tree grows 8 inches. How long will it take for the tree to reach 37 inches in height?

If this helps, please consider giving me brainliest.  

3 0
3 years ago
12, 15. -27. What is the sum of the cards she chose?
diamong [38]

Answer:

Add 12 with 15, we would get 27

If we add 27 with -27, then we would get 0, because if a negative and positive number are the same, then you add them, you will alway's get 0

0 is your answer

4 0
3 years ago
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