20 points and will mark brainliest plz

which is the equation of a line that has a slope of 1/2 and passes through point (2,–3)?

a. y= 1/2x-4

b. y= 1/2x-2

c. y=1/2x +2

d. y=1/2x +3

The answer is A

Step-by-step explanation:

y = mx + c

m = 1/2

(2,-3)

y = (1/2)x + c

-3 = (1/2)(2) + c

c = -4

y = (1/2)x - 4

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:

1. x> -5

2. x< 8

step-by-step explanation:

1. 2x> -10

divide by 2 from both sides of equation.

2x/2> -10/2

simplify, to find the answer.

-10/2=-5

x> -5 is the correct answer.

2. 3x< 24

divide by 3 from both sides of equation.

3x/3< 24/3

simplify, to find the answer.

24/3=8

x< 8 is the correct answer.

i hope this you, and have a wonderful day!