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DiKsa [7]
4 years ago
9

The scatterplot and trend line show a positive correlation between advertising costs and sales. The slope was found using the po

ints (6.4, 117) and (6.6, 120). What is the value of b in the equation of the trend line? y = 15x + b
Mathematics
2 answers:
andrey2020 [161]4 years ago
6 0
When x = 6.4, y=117, therefore
15*6.4 + b = 117
b = 117 -  96 = 21

Confirm this value by checking (6.6, 120).
15*6.6 + 21 = 120 (Correct)

Answer: b = 21
Aloiza [94]4 years ago
3 0

Answer:

21

Step-by-step explanation:

just took it and got it brah

Brianna bts
3 years ago
thxs and really needed
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I need help thank you
lesya692 [45]

Answer:

B.

Step-by-step explanation:

There are two 1/4's, five 1/2's, and three 3/4's.

So this means,

There will be two x's above 1/4,

Five x's above 1/2,

And three x's above 3/4,

Line plot B is the only line plot that matches this.

Therefore option B is the answer.

3 0
2 years ago
4 divided by 1/3 is 12 becuase
Alex17521 [72]

Answer:

12

Step-by-step explanation:

When we divide fractions we multiply instead since it's the opposite of division and we do the reciprocal. Reciprocal means we flip the fraction from 1/3 to 3/1

So:

4÷1/3 would become 4×3/1

4×3/1 is the same as 4×3

So:

4×3=12

That's why the answer is 12.

8 0
2 years ago
2) Use long division to simplify<br> X+2 X3+3x2-48-12
Anna35 [415]
= X -4 you can also use the app Photomath
4 0
4 years ago
Match each description when z = 9 + 3i.
VladimirAG [237]
Real part of z = 9
Imaginary Part = 3i
Conjugate of z is 9 - 3i

7 0
3 years ago
Read 2 more answers
In circle E with m \angle DEF= 70m∠DEF=70 and DE=13DE=13 units find area of sector DEF. Round to the nearest hundredth.
Anuta_ua [19.1K]

Answer:

103.18units³

Step-by-step explanation:

Area of the sector DEF = theta/360 * πr²

r is the radius

theta is the angle subtended at the centre

theta =70 degrees

radius DE = 13units

Substitute

Area of the sector = 70/360 * 3.14(13)²

Area of the sector = 7/36 * 530.66

Area of the sector = 3,714.62/36

Area of the sector = 103.18units³ (to the nearest hundredth)

7 0
3 years ago
Read 2 more answers
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