MATHEMATICS HIGH SCHOOL

The relationship between the number of months and cumulative cell phone cost is represented by the scatter plot shown.Cumulative Cost
600
500
2 400
Cumulative Cell Phone Cost (dollars)
(10, 504)
(9,470)
(8,418).
(7, 361)
(6, 324)
.(5, 253)
(3, 162) •(4, 196)
300
200
100+(1,55) (2, 108)
8
9
10
Number of Months
A line of best fit for this data is C = 51m + 4.4, where is the cumulative cell phone cost and m is the number of months.
Using this data, which value is the best prediction of the cumulative cell phone cost after 18 months?

Answers

Answer 1
Answer:

Answer:

C. $940

Step-by-step explanation:
Answer 2
Answer:

Answer:

$940

Step-by-step explanation:

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Can you show your work for me on divided Omg 0.6 and 12.9

Answers

0.6 divided by 12.9.

0.6 is outside the house for the divide then inside the house is 12.6
then you move your decimal point over 1 place so its 06 divide by 126. 
after that 6 goes into 12 twice then your have a remainder of 09 then 6 goes into 9 once, our remainder is 3, then you put a 0 at the end of the decimal point of the 126. after that you bring down your zero and 6 goes into 30 five times.
Answer 21.5
0.04 is the answer first you have to divide then flip your second fraction then change your divide sign into multiplication then solve.

Which of the following equations represents the graph shown?o f(x) = -x + 2
o f(x) = -x-2
o f(x) = x + 2

Answers

Answer:

It's the first one. -x+2

Step-by-step explanation:

The slope is negative and the line intersects the y-intercept at positive 2.
He’s correct .yay ya

The perimeter of a rectangle is 30 cm. The width of the rectangle is 7 cmWhat is the area of the rectangle?

A) 56 cm

B) 49 cm

C) 14 cm

Answers

Let's say the length of the rectangle is L.

We have P= (L+W)*2
⇒ 30 cm= (L+ 7 cm)*2
⇒ L+ 7 cm= 15 cm
⇒ L= 8 cm.

S= L*W= 8 cm* 7 cm= 56 cm^2.

The answer is A) 56 cm^2.

Hope this helps~
perimeter = 2(l+w)
30 = 2(l+7)
30 = 2l + 14
30 - 14 = 2l
16 = 2l
8 = l

l = 8
w = 7

area = l x w = 8 x 7 = 56 cm²

Select all the equations that match the tape diagram below.A. 5(2+x) = 19

B. 2(x+5) = 19

C. 5x + 2 = 19

D. 19 = 2x - 5

E. 10 + 5x = 19

F. 5x = 9

G. 10x + 5x = 19

Answers

I’m sure it’s only A/E, apologies if wrong

Which one of the following fractions is equivalent to 1/2 a. 1/4 b. 2/4 c. 1/8 d. 2/8

Answers

B. 2/4 because if you reduce it, it equals 1/2
2/4
because if you multiply the numerator and the denominator in 1/2 by 2 you will get 2/4

1×2=2
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If T(n) = 2-7n, what is the 1st term?

Answers

n stands for the term number, so just substitute in 1 as n. T(1)=2-7, or -5
T(n)=2-7n \n \n for \ n=1\n \n T(1)=2-7*1\n T(1)=2-7\n \boxed{T(1)=-5}
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