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Nady [450]
3 years ago
11

Charlie gathered data about the time it takes him to complete a crossword puzzle and the number of clues in the puzzle. He used

a graphing tool to organize the data in a scatter plot and find the line of best fit.
He found the relationship between the number of clues, x, and the time required to complete the puzzle, y, is modeled by the equation y = 0.376x + 15.48, and the correlation coefficient for the data is 0.219.

Could the line of best fit be used to make reliable predictions about the time it takes Charlie to complete a crossword puzzle?
Mathematics
1 answer:
SCORPION-xisa [38]3 years ago
4 0

Answer:

No, because the correlation coefficient is closer to 0 than to 1, which indicates a weak association between the variables.

Step-by-step explanation:

I got it correct

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Factor the equation 3m^2n+12mn^2
DiKsa [7]
That's not an equation.  It's just an expression that stands for a number.
Of course, we can't find the number until we know what 'm' and 'n' are.

The largest "common factor" is  3mn .

So in factored form, the expression is     3mn (m + 4n) .
8 0
3 years ago
Read 2 more answers
Select the correct answer. The capacity in cubic feet of a cylindrical silo is given by the function C(x), where x is the radius
katrin [286]

Answer:

C. H(x) = 2x+6

Step-by-step explanation:

Volume of the cylindrical silo = Area of its circular base × Height

Volume of the cylindrical silo = πr²×H

If the area of the circular base of the silo is given by the function A(x), the volume is given by C(x) and the height is given by H(x), the formula can be expressed as;

C(x) = A(x) × H(x)

The height of the cylindrical silo will be;

H(x) = C(x)/A(x)

Given C(x) = 6.28x³ + 18.84x² and

A(x) = 3.14x²

H(x) = 6.28x³ + 18.84x²/3.14x²

H(x) = x²(6.28x+18.84)/3.14x²

H(x) = (6.28x+18.84)/3.14

H(x) = 3.14(2x+6)/3.14

H(x) = 2x+6

Hence, the function, H(x) that represents the height of the silo is 2x+6.

4 0
4 years ago
(Q2) Decide if the function is an exponential function. If it is, state the initial value and the base. y=5^x
Brut [27]

Answer:

B

Step-by-step explanation:

We can figure out the initial value and base of an exponential function if the function is written in the form  y=a*b^x  where

a is the initial value, and

b is the base

<u>Note:</u> a ≠ 0 and b ≠ 1

Our equation given can be written in this form by writing it like  y=5^x\\y=1*5^x

Thus, this is an <em>exponential function</em>. The initial value is 1 and the base is 5.

The correct answer is  B

8 0
3 years ago
3(y-10)+1=x(y-8) HELP I NEED TO SHOW WORK IVE ALREADY POSTED THIS 2 TIMES
Nutka1998 [239]

Answer:

try make one tutor help u that what I do to understand better.they go step but step

3 0
4 years ago
Jane ran 72 miles in 6 days. Then she tripled her rate. How long would it take her to travel 648 miles at the new speed?
ollegr [7]

Answer:

18 days

Step-by-step explanation:

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12*3=36

648/36=18 days

8 0
3 years ago
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