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Reika [66]
3 years ago
10

Write the equation of the perpendicular line with the points (-9,2) with the equation 3x-y=12

Mathematics
1 answer:
DedPeter [7]3 years ago
6 0

Answer:

y=-1/3x-1

Step-by-step explanation:

Perpendicular lines have slope that are opposite sign and reciprocals

3x-y=12 has a slope of 3, therefore perpendicular line must have slope of -1/3

2=-9(-1/3)+b

2=3+b

b=-1

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3 0
3 years ago
6th grade math help this is usually easy for people !
Triss [41]

Answer:$19.99

Step-by-step explanation:

2 pairs cost $39.98

1 pair cost $a

a=39.98 ➗ 2

a=$19.99

6 0
4 years ago
A boy throws a baseball across a field. The ball reaches its maximum height, 18 meters, after 1 second. After approximately 2. 3
fredd [130]

The height of the baseball after the 1.5 seconds of time as the boy throw the ball is 15.5 meters.

<h3>How to model a mathematical function?</h3>

The mathematical functions is used to represent the general problem in the mathematical way to solve them.

Steps to write down the simple mathematical function-

  • Identify all the factors of the expression.
  • Assume a variable for the changing values.
  • Put a coefficient for the variable, if there is any rate of change of variable.
  • Use constant numbers for the fixed values.

A boy throws a baseball across a field. The ball reaches its maximum height, 18 meters, after 1 second.

After approximately 2.3 seconds, the ball lands on the ground.

The ball’s motion can be modeled using the function

f(x) = -10x^2 +20x+ 8

Here, x represents the time in seconds.

As, the height of the ball 1.5 seconds after it is thrown has to be found out. Thus, put the values of in the above equation as,

f(x) = -10(1.5)^2 +20(1.5)+ 8\\f(x)=-22.5+30+8\\f(x)=15.5\rm \; m

Hence, the height of the baseball after the 1.5 seconds of time as the boy throw the ball is 15.5 meters.

Learn more about the modeling the mathematical function here;

brainly.com/question/25896797

3 0
2 years ago
The volume of a swimming pool is 4x^3 - 20x^2 + 3x - 15 . what is one of the dimensions of the pool
maxonik [38]

Answer:

Height = x - 5 --- one of the dimension

Step-by-step explanation:

Given

Volume = 4x^3 - 20x^2 + 3x - 15

Required

The side dimension

Factorize the given expression

Volume = 4x^2 (x- 5) + 3(x - 5)

Factor out x - 5

Volume = (4x^2  + 3)(x - 5)

Volume is the product of base area and height'

Hence:

Area = 4x^2 + 3

Height = x - 5

5 0
3 years ago
Logan dug a hole 5/6 feet deep.michael dug a hole 1/4 feet deep.how much deeper is logans hole than michael
Simora [160]

Answer:

7/12 feet

Step-by-step explanation:

5/6 - 1/4

LCD is 12... 10/12 - 3/12 = 7/12

8 0
3 years ago
Read 2 more answers
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