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3 years ago

Jeremiah conducts a survey and finds that as the first variable in his survey increases, the

Mathematics

1 answer:

lapo4ka [179]3 years ago

4 0

Answer:

Negative Association.

Step-by-step explanation:

Association between variables:

Association between variables can be classified as positive or negative.

Positive: Both move in the same direction, that is, either both increase or both decrease.

Negative: The variables move in opposite directions, one increases and the other decreases.

In this question:

As the first increases the second decreases, that is, they move in opposite directions, so it is a Negative Association.

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A field is a rectangle with a perimeter of 1240 feet. The length is 400 feet more than the width. Find the width and length of t

Wewaii [24]

Answer: The length is 510 and the width is 110.

Step-by-step explanation:

To find the area of a rectangle, you will have to add the 2 times the length plus 2 times the width because a rectangle have 4 sides. Two widths and two lengths.

You can now use the formula P= 2l + 2w

were P is the perimeter , l is the length, and w is the width.

the length is 400 more than the width, so we can represent that by the equation, l = w + 400

And now we know that the width is w.

So now we will input the perimeter, length, and into the formula to solve for w.

1240 = 2(w + 400) + 2w

1240 = 2w + 800 + 2w

1240 = 4w + 800

-800 -800

440 = 4w

w = 110

L= 110 + 400

L = 510

Check :

1240 = 2(510) + 2(110)

1240 = 1020 + 220

1240 = 1240

5 0

3 years ago

(6x + 5) ° (3x + 4)º A)16 B)10 C) 6 D) 9 E) 14

REY [17]

Answer:

i think it is C sorry if it is wrong.

Step-by-step explanation:

join zoom: 982 6380 2701 and 9H92fF

7 0

3 years ago

Read 2 more answers

Mason plays a game by flipping two fair coins.He wins the game if both coins land facing heads up. If Mason plays 200 times, how

blagie [28]

Answer:

Therefore Mason would be expected to win 50 times.

Step-by-step explanation:

i) probability of flipping a head for a fair coin is $\frac{1}{2}$

ii) probability of flipping two fair coins is = $\frac{1}{2} \times \frac{1}{2} = \frac{1}{4}$

iii) Therefore if Mason plays 200 times he would be expected to win

= $\frac{1}{4} \times 200 = 50\hspace{0.1cm} times.$

7 0

3 years ago

Write an equation of a line that passes through (-6, 1), parallel to y = 2x – 6.

Eddi Din [679]

Answer:

y = -1/2x - 2

Step-by-step explanation:

If it's parallel, that means that the slope is the opposite of the one in the given equation, meaning that 2 would be flipped and turned negative into -1/2.

Then, fill in the x and y values to get the y-intercept.

1 = -1/2(-6) + b

1 = 3 + b

-2 = b

So your answer is y = -1/2x - 2

4 0

3 years ago

Simplify the complex fraction: ((3x-7)/x^2)/(x^2/2)+(2/x)

Archy [21]

Simplify the complex fraction: ((3x-7)/x^2)/(x^2/2)+(2/x)

$\dfrac{ \dfrac{3x-7}{x^2} }{ \dfrac{x^2}{2} } + \dfrac{2}{x} =\qquad \qquad x \neq 0\qquad x^4 \neq 0 \\ \\ \\ \dfrac{(3x-7)*2}{x^2*x^2}+ \dfrac{2}{x} = \\ \\ \\ \dfrac{6x-14}{x^4}+ \dfrac{2}{x} =\\ \\ \\ \dfrac{ 6x-14 }{ x^4 }+ \dfrac{2(x^3)}{x(x^3)}=\\ \\ \\ \boxed{ \dfrac{ 6x-14 +2x^3}{ x^4 } }$

6 0

3 years ago