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Allushta [10]
3 years ago
11

PLEASEEEEEEEE HELPPPPPPPPP MEEEEEEEEEE

Mathematics
1 answer:
Archy [21]3 years ago
5 0

Answer:

b

Step-by-step explanation:

In general

Given

y = f(x) then y = f(Cx) is a horizontal stretch/ compression in the x- direction

• If C > 1 then compression

• If 0 < C < 1 then stretch

Consider corresponding points on the 2 graphs

(2, 2 ) → (4, 2 )

(4, - 2 ) → (8, - 2 )

Indicating a stretch in the x- direction.

y = f(\frac{x}{2} ) with C = \frac{1}{2} , that is 0 < C < 1

stretches the graph in the x- direction by a factor of 2

Thus

y = f(\frac{x}{2} ) → b

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5x + 2y = 10 m= _______ b=_________
vova2212 [387]

Answer:

m = -2.5

b = 5

Step-by-step explanation:

y = mx + b

6 0
3 years ago
Ivan and Tanya share £150 in the ration of 4:1
Zarrin [17]

Answer:

Money Ivan gets   extra = 120 - 30 (or 3x) = 90

Step-by-step explanation:

Ivan = 4x

Tanya = 1x

Total = 150

4x + x = 150

5x = 150 ;  x = 150 / 5 = 30

Ivan = 4x = 120

Tanya = 1x = 30

Money Ivan gets   extra = 120 - 30 (or 3x) = 90

8 0
3 years ago
You need to stabilize a flagpole by string in a guy-wire from the top of a flagpole to the ground. The pole is 15 feet tall and
Mandarinka [93]
Sinα=h/w

w=h/sinα, we are told that h=15 ft and α=70° so

w=15/sin70° ft

w≈15.96 ft (to nearest hundredth of a foot)
7 0
3 years ago
Read 2 more answers
The table displays the scores of students on a recent exam. Find the mean of the scores to the nearest 10th.
Viktor [21]

The mean of the scores to the nearest 10th digit will be 74.9.

<h3>What is Mean?</h3>

The mean is the straightforward meaning of the normal of a lot of numbers. In measurements, one of the markers of focal propensity is the mean.

Then the mean is given as,

Mean = (Total score) / (total student)

The total score will be

Total score = 65 x 8 + 70 x 7 + 75 x 3 + 80 x 8 + 85 x 3 + 90 x 2 + 95 x 2

Total score = 520 + 490 + 225 + 640 + 225 + 180 + 190

Total score = 2470

The total number of students will be

Total student = 8 + 7 + 3 + 8 + 3 + 2 + 2

Total student = 33

Then the mean will be

Mean = 2470 / 33

Mean = 74.85 ≈ 74.9

More about the mean link is given below.

brainly.com/question/521501

#SPJ2

5 0
2 years ago
Read 2 more answers
There are 45 children in a class. If
Dovator [93]

Answer:

20%

Step-by-step explanation:

Total = 45

Absentees = 9

Percentage  = (No. of absentees / total) × 100

                    = 9 / 45 × 100

                    = 0.2 × 100

                    = <u>20%</u>

3 0
3 years ago
Read 2 more answers
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