Pls help i dont need working out just answers

A) y = -(8/3)m - 2

B) y = 4x - 1

C) y = -3.2x - 4

D) y = -2.5x - 3

Step-by-step explanation:

A) In the first equation, when x = 0, y = -2

From y = mx + c, we can say that

-2 = 0 + c

c = -2

Also,when y = 0, x = -0.75

Thus, 0 = -0.75m - 2

m = -2/0.75 = -8/3

Thus, y = -(8/3)m - 2

B) when x = 0, y = -1

From y = mx + c, we can say that

-1 = 0 + c

c = -1

Also,when y = 0, x = 0.5

Thus, 0 = 0.5m - 2

m = 2/0.5 = 4

y = 4x - 1

C)when x = 0, y = -4

From -4 = mx + c, we can say that

-4 = 0 + c

c = -4

Also,when y = 0, x = -1.25

Thus, 0 = -1.25m - 4

m = - 4/1.25 = -3.2

y = -3.2x - 4

D) when x = 0, y = -3

From y = mx + c, we can say that

-3 = 0 + c

c = -3

Also,when y = 0, x = -1.2

Thus, 0 = -1.2m - 3

m = -3/1.2 = -2.5

y = -2.5x - 3

hello,

b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

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step-by-step explanation:

d 25 pi/6

step-by-step explanation:

the diameter is 10 inches

the radius is 1/2 of the diameter or 5 inches

the area of the circle is

a = pi r^2

  = pi 5^2

  = 25 pi

the slice is 60 degrees of the entire circle.

60 degrees out of 360   60/360 = 1/6

the area of the slice is 1/6 of the circle

a slice = 1/6 a circle

a slice = 1/6 * 25 pi