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3 years ago

A sequence of the form a1, a1+d, a1+2d, a1+3d, . . . is called a/an _____.

Mathematics

1 answer:

saw5 [17]3 years ago

7 0

Answer:

arithmetic sequence

Step-by-step explanation:

please mark as brainlist

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Evaluate the expression for the value 5 X (h + 3) for h= 7

horrorfan [7]

Answer:

35x + 15

Step-by-step explanation:

5x(7 + 3)

35x + 15

8 0

3 years ago

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Which graph best represents the following situation?

hichkok12 [17]

Answer:

The correct option is D. The situations x increases, y decreases; r= -0.41 is represented by Graph D.

Step-by-step explanation:

Given information: x increases, y decreases; r= -0.41.

Here r represents the correlation between two variables x and y.

If r is close to -1, then it is strong negative correlation.

If r is close to 1, then it is strong Positive correlation .

If r is close to -0.5, then it is weak negative correlation.

If r is close to 0.5, then it is weak positive correlation .

If r=0, then there is no correlation between x and y.

In graph A, x increases, y decreases and r is close to -1 because it is strong negative correlation.

Therefore option A is incorrect.

In graph B, x increases, y increases and r is close to 0.5 because it is weak positive correlation.

Therefore option B is incorrect.

In graph C, x increases, y increases and r is close to 1 because it is strong positive correlation.

Therefore option C is incorrect.

In graph A, x increases, y decreases and r is close to -0.5 because it is weak negative correlation.

Therefore option D is correct.

4 0

3 years ago

Read 2 more answers

Please help this is timed

elena-14-01-66 [18.8K]

Answer:

option d is correct

de=9 and ef=15

6 0

3 years ago

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There are 12 students running for three student coun-

anyanavicka [17]

Must be

(c) 12.11.10

Or

(d) 12

8 0

3 years ago

What is the slope of the graph?

VMariaS [17]

<u>Given</u>:

Given that an aquarium is being filled with water.

The given graph shows the height of the water over time as the aquarium is being filled.

We need to determine the slope of the graph.

<u>Slope</u>:

The slope of the given graph can be determined using the formula,

$m=\frac{y_2-y_1}{x_2-x_1}$

Since, the slope is same for all the points on the straight line, then let us consider the points (2,5) and (4,10)

Substituting these points in the above formula, we get;

$m=\frac{10-5}{4-2}$

Simplifying, we get;

$m=\frac{5}{2}$

$m=2.5$

Thus, the slope of the given graph is 2.5

8 0

3 years ago