MATHEMATICS HIGH SCHOOL

I need help asap plz​
i need help asap plz​ - 1

Answers

Answer 1
Answer:

Answer:The y-intercept is roughly D=25

Step-by-step explanation: The y-intercept is where the line passes through the y-axis. On this graph the y-axis passes through the y-intercept at 25.

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X+1=3 x-4=5 solve by equation method

Answers

Answer:

X+1=3

x = 3 - 1

x = 2

Check:

2 + 1 = 3

x-4=5

x = 5 + 4

x = 9

Check:

9 - 4 = 5

Answer:

1)x=2

2)x=9

Step-by-step explanation:

x+1=3

=>x=3-1

therefore

x=2

second question

x-4=5

=>x=5+4

therefore

x=9

Use cross multiplication to solve the following proportion. 1. /6 = 15/18​

Answers

Answer:

x=5

Step-by-step explanation:

x/6=15/18

18x=6 times 15

18x=90/18

x=5

Find sin(7pie/4) using exact values

Answers

sin( ( 7\pi )/(4) )=-sin(2 \pi - ( 7\pi )/(4) )=-sin ( \pi )/(4) =- (1)/( √(2) )

A baker made 9 cupcakes 4 people want to share them equally how many will each person get

Answers

Everyone would get 2 1/4 cupcakes because if you split up each cupcake by 4, (In four different pieces) everyone would get 9/4 slices. Change to a mixed number to get 2 1/4

Ms. Wertz graded 20% of the tests for her class in 16 minutes. How many minutes will it take to grade all of the tests?

Answers

Answer:

The entire class is done in 80 minutes

Step-by-step explanation:

20 % = 20/100 = 1/5

1/5  of the class in 16 minutes

Multiply each by 5

1/5 *5  of the class in 16*5 minutes

1 of the class in 80 minutes

The entire class is done in 80 minutes

Solve for b and c

2x^3-8x^2-24x=2x(ax+b)(cx+d)

a=1 and d=-6

Answers

Answer:

b = 2, c = 1

Step-by-step explanation:

2x³ - 8x² - 24x == 2x(ax + b)(cx + d)

2x³ - 8x² - 24x = 2x(x² - 4x - 12)

= 2x(x + 2)(x - 6)

Answer:

Step-by-step explanation:

b=2, c=1
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