All categories

3 years ago

Can someone please help me with this math question

Mathematics

1 answer:

Ksivusya [100]3 years ago

4 0

Answer:

The answer would be D

Step-by-step explanation:

Most of the points are grouped together and can be define by a line or equation so there is a correlation between the outside temperatures and the heating cost so right away we can eliminate option A

There is no such thing as a constant correlation so we can eliminate answer choice C

As the temperatures rise ( or as the x values rise) the cost of heating decreases ( or the y values decrease) This is an example of negative correlation correlation because as one value increase the other value decreases.

this is also notable from looking at the graph .

You might be interested in

The population had decreased 300 resident over the past 5 years. The same number of residents left each year.

Lostsunrise [7]

Answer:

Step-by-step explanation:

6 0

3 years ago

Juan had 8 points in a trivia game he answered 3 more questions correctly for 2 points

Vlada [557]

Answer:

It's 14 pts total.

Step-by-step explanation:

He started out with 8. Then he answered 3 more questions that were 2 pts each. If you do 3x2, that would =6. Add 6 and 8, and you get 14!

6 0

3 years ago

Read 2 more answers

The rectangle below has an area of x^2-4x-12x 2 −4x−12x, squared, minus, 4, x, minus, 12 square meters and a length of x+2x+2x,

solniwko [45]

Answer:

Width = x-6 metres

Step-by-step explanation:

The formula for the area of a rectangle is represented by Length (l) × Width (w).

If the area is x^2-4x -12, which is an algebraic expression, The best way to find its length and breadth which would be a product of themselves is by FACTORIZATION.

To factorize x^2-4x -12, we say:

×^2 = a, -4x = b, -12 = c

Product: a×c; -12 × x^2= -12x^2

Sum: b; -4x derived by saying (-6x+2x)

Note that the expression of the sum (-6x+2x) must be able to be multiplied to give product (-12x^2).

Hence, we rewrite our algebraic expression using the sum expression.

x2 - 6x + 2x - 12

We then factorize by using a common factor (x and 2)

x( x - 6) + 2 (x - 6)

(x+2) (x-6)

Thus, the factors are x+2 and x-6

This means that (x+2) and (x-6) will be multiplied to give x^2-4x-12. Therefore, if x+2 metres is the Length, x-6 metres is the width.

6 0

4 years ago

Read 2 more answers

A package of chocolate contains 3 caramel filled pieces, 3 raspberry filled pieces, and 4 fudge filled pieces. What is the proba

tino4ka555 [31]

Answer:

2/9

Step-by-step explanation:

4 0

3 years ago

Which of the following graphs correctly represents: (pictures)

Aloiza [94]

The correct answer is: [A]:
______________________________________________________
{The first graph that is shown among the answer choices provided}:
______________________________________________________
→ shows: " x ≤ 3 " ; as follows:
______________________________________________________

5 0

3 years ago