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Ne4ueva [31]
3 years ago
10

Whay will most likely happen to students test scores if the number of hours they use social media increases? A test score will i

ncrease, because the graph shows a positive association B test score will increase, because the graph shows a negative association C test score will decrease, because the graph shows a negative association D test score will decrease, because the graph shows a positive association
Mathematics
1 answer:
Len [333]3 years ago
4 0
C as when they put more hours into the social media they will study less and less which leads to less test scores
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What’s the answer to this?
jasenka [17]

Answer:

It would be the first option: Last week, Rosemary walked at a faster pace.

Step-by-step explanation:

Last week, the speed was d=3h, as for this week, her speed was d=2.5h.

No one knows how many hours she walked this week so we cannot say that she walked a greater distance.

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3 years ago
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David’s family is driving from New York to Florida. They know the distance they will travel is about 1100 miles. If a map has a
zaharov [31]

Answer:

Step-by-step explanation:

do the proportion ...

1 inch/ 80 miles =x inch/ 1100 miles

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4 years ago
For A-D, choose Yes or No to indicate whether the situation can be represented by a negative number.
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Answer:

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Step-by-step explanation:

4 0
3 years ago
The integral of (5x+8)/(x^2+3x+2) from 0 to 1
Gnom [1K]
Compute the definite integral:
 integral_0^1 (5 x + 8)/(x^2 + 3 x + 2) dx

Rewrite the integrand (5 x + 8)/(x^2 + 3 x + 2) as (5 (2 x + 3))/(2 (x^2 + 3 x + 2)) + 1/(2 (x^2 + 3 x + 2)):
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Integrate the sum term by term and factor out constants:
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For the integrand (2 x + 3)/(x^2 + 3 x + 2), substitute u = x^2 + 3 x + 2 and du = (2 x + 3) dx.
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Apply the fundamental theorem of calculus.
The antiderivative of 1/u is log(u): = (5 log(u))/2 right bracketing bar _2^6 + 1/2 integral_0^1 1/(x^2 + 3 x + 2) dx

Evaluate the antiderivative at the limits and subtract.
 (5 log(u))/2 right bracketing bar _2^6 = (5 log(6))/2 - (5 log(2))/2 = (5 log(3))/2: = (5 log(3))/2 + 1/2 integral_0^1 1/(x^2 + 3 x + 2) dx

For the integrand 1/(x^2 + 3 x + 2), complete the square:
 = (5 log(3))/2 + 1/2 integral_0^1 1/((x + 3/2)^2 - 1/4) dx

For the integrand 1/((x + 3/2)^2 - 1/4), substitute s = x + 3/2 and ds = dx.
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Factor -1/4 from the denominator:
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Factor out constants:
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Factor -1 from the denominator:
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Apply the fundamental theorem of calculus.
The antiderivative of 1/(1 - p^2) is tanh^(-1)(p):
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Evaluate the antiderivative at the limits and subtract. (-tanh^(-1)(p)) right bracketing bar _3^5 = (-tanh^(-1)(5)) - (-tanh^(-1)(3)) = tanh^(-1)(3) - tanh^(-1)(5):
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Which is equal to:

Answer:  = log(18)
5 0
3 years ago
PLEASE HELP!
kondaur [170]
I need more info on this ? to answer.
6 0
3 years ago
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