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Alisiya [41]
3 years ago
8

A line has a slope of -1/2 and a y-intercept of –2.

Mathematics
1 answer:
Sergeeva-Olga [200]3 years ago
8 0

Answer:

a.-4

Step-by-step explanation:

I pictured it as a graph and since the slope is negative, the line goes down and to the right. Since the slope is -1/2, for every 2 you move horizontally, you move one vertically. You have to move two up and unless the y intercept is 0, when the line intercepts y, you have 0 as x. You move two up and 4 backwards so the x intercept is -4

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Expand the expression 4(y+z)
Ilia_Sergeevich [38]

Answer: 4y+4z

Step-by-step explanation:

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3 years ago
Which equation represents this statement?
yanalaym [24]

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first one

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7 0
2 years ago
HELP
Yakvenalex [24]

Answer:

5. 50.3 m²

6. 113.1 cm²

7. 102.1 yards²

8.  50.3 yards²

9.  452.2 ft²

10.379.8 ft²

Step-by-step explanation:

Area of  a circle = nr²

The circumference of a circle = 2nr

n = pi = 22/7

r = radius

the diameter is the straight line that passes through the centre of a circle and touches the two edges of the circle.

A radius is half of the diameter

radius = diameter / 2

5. (22/7) x 4² = 50.3 m²

6.  (22/7) x 6² =113.1 cm²

7. radius = 11.4/2 = 5.7 yards

(22/7) x 5.7² =102.1 yards²

8. radius = 8/2 = 4 yards

(22/7) x 4² = 50.3 yards²

9. 2nr = 75.4 yards

2 x (22/7) x r = 75.4

to find r, divide both sides of the equation by 2 and 7/22

r = 12 ft

Area =  (22/7) x 12² = 452.2 ft²

10. 2nr = 69.1 yards

2 x (22/7) x r = 69.1

to find r, divide both sides of the equation by 2 and 7/22

r = 10.99 ft²

Area = (22/7) x 10.99² = 379.8 ft²

the tenth is the first number after the decimal place. To convert to the nearest tenth, look at the number after the tenth (the hundredth). If the number is greater or equal to 5, add 1 to the tenth figure. If this is not the case, add zero

8 0
3 years ago
Which of the following is the measure of ÐQRS?
luda_lava [24]
I think the answer is D
if not then its C
6 0
3 years ago
Read 2 more answers
Plz help and explain why it's the answer?
Mashcka [7]
The 3rd one cause at first its 1ft = 10ft and it was an 8 by 8 square and now its a 4 by 4 square meaning it was divided by 2 meaning you divide 10 by 2 getting 1ft = 5ft

7 0
3 years ago
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