MATHEMATICS HIGH SCHOOL

Determine which ordered pair is a solution of y=8x.A. (0,8)
B. (-1,8)
C. (1.5,10)
D. (2,16)

Answers

Answer 1
Answer:

we know that

If the ordered pair is a solution of the equation, then the ordered pair must satisfied the equation

we will proceed to solve each case to determine the solution of the problem

we have

y=8x -------> equation 1

case a)(0,8)

x=0\ny=8

For x=0

substitute the value of x in the equation 1 and then compare the values of y

y=8*0=0

so

0\neq 8

The ordered pair case a) is not solution

case b)(-1,8)

x=-1\ny=8

For x=-1

substitute the value of x in the equation 1 and then compare the values of y

y=8*(-1)=-8

so

-8\neq 8

The ordered pair case b) is not solution

case c)(1.5,10)

x=1.5\ny=10

For x=1.5

substitute the value of x in the equation 1 and then compare the values of y

y=8*1.5=12

so

12\neq 10

The ordered pair case c) is not solution

case d)(2,16)

x=2\ny=16

For x=2

substitute the value of x in the equation 1 and then compare the values of y

y=8*2=16

so

16=16

The ordered pair case d) is a solution

therefore

the answer is

(2,16)
Answer 2
Answer: y = 8x
y = 8(2)
y = 16
(x, y) = (2, 16)

The answer is D.

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10 times the square of a nonzero number is equal to 90 times the number. whats the number?

Answers

9 because 10 times 9 is 90 and if you divide 90 by 10 you get 9
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Hope this helps with your question.

Angela bought gifts for her friends, and each gift costs 10$. Let y represent the total cost and x represent the number of gifts. Write an equation to represent the proportional relationship between the total cost and the number of the gifts she bought.

Answers

Answer:

Step-by-step explanation:

If Angela bought gift for her friend and each gift costs 10$. This means that the more the number of her friends, the more the money she will pay and vice versa. This is known as a direct relationship.

Let y represent the total cost and

x represent the number of gifts

According to direct variation]

y ∝ x

y = kx

k is the constant of proportionality

If each gift item cost $10, x gift will cost 10x. The constant of proportionality in this case will be 10. Substituting, the equation will become;

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Which number line represents the solutions to |x – 5| = 1?

Answers

i have the same question heres the lines

Answer:

Second option

How do I evaluate x+y=10

Answers

Hi there! Evaluate means to solve so we are going to solve x+y=10. Add both sides to -y, x+y+-y=10+-y=X=-y+10. Therefore, the answer is x=-y+10

Write the equation of line perpendicular to y = 4 that passes through (5, 2).

Answers

Answer:

x= -5

Step-by-step explanation:

just graphed it . y = 4 is a flat horizontal line.

x=5 is a vertical line that passes through (5,2)

Final answer:

The equation of the perpendicular line is x = 5.

Explanation:

To find the equation of a line perpendicular to y = 4 that passes through the point (5, 2), we need to determine the slope of the original line. The equation y = 4 represents a horizontal line with a slope of 0. Perpendicular lines have slopes that are negative reciprocals of each other. The negative reciprocal of 0 is undefined, so the equation of the perpendicular line will be x = 5.

Learn more about Perpendicular lines here:

brainly.com/question/18271653

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How can i simplify √320x³

Answers

Answer:

8x * sqrt(5x)

Step-by-step explanation:

Factor 320 into its prime factors: (2^6) * 5

To simplify sqrt we extract factors which are squares and the rest remain inside the root: (2^6) will be extracted (2^6=64) and 5 will remain inside

Take sqrt of factors being extracted: sqrt64= 8

Now it looks like this: 8 * sqrt(5x^3)

SQRT(x^3) is the same as x * SQRT(x)

Therefore, sqrt (320x^3)= 8x*sqrt(5x)
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