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2 years ago

The equations of four lines are given. Identify which lines are perpendicular.

Mathematics

1 answer:

Maksim231197 [3]2 years ago

3 0

Answer:

lines 1 and 3

Step-by-step explanation:

y = 2 is a horizontal line parallel to the x- axis

x = - 4 is a vertical line parallel to the y- axis

Then these 2 lines are perpendicular to each other

y = 15x - 3 ( in the form y = mx + c ) with m = 15

y + 1 = - 5(x + 2) ( in the form y - b = m(x - a) with m = - 5

For the lines to be perpendicular the product of their slopes = - 1

However

15 × - 5 = - 75 ≠ - 1

The 2 lines 1 and 3 are perpendicular

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A basketball league's average score is 58 points per game. Coach McGee tracks a team's average for five weeks and compares

iogann1982 [59]

Answer:

the 2nd option

Step-by-step explanation:

If you change Week 5 into a decimal, you will get -1.8, which is the same as Week 4.

Hope this helps :)

8 0

2 years ago

Which of the is not a function

Lina20 [59]

Answer:

Step-by-step explanation:

For a function the value of the variable "x" must correspond to a single value of "y"

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5 0

1 year ago

Write the equation in slope-intercept form. 5x + 5y = 35

vekshin1

Answer:

y = -x + 7

General Formulas and Concepts:

Pre-Algebra

Equality Properties

Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
Subtract Property of Equality

Algebra I

Slope-Intercept Form: y = mx + b

m - slope
b - y-intercept

Step-by-step explanation:

Step 1: Define

[Standard Form] 5x + 5y = 35

Step 2: Rewrite

Find slope-intercept form.

Subtract 5x on both sides: 5y = -5x + 35
Divide 5 on both sides: y = -x + 7

4 0

2 years ago

you can use the expression 5n to determine the amount of money you have in cents, when you have n nickels. Find the amount of mo

Anni [7]

Answer:

90 cents

Step-by-step explanation:

Find how much money you have by plugging in 18 as n into the expression:

5(18)

Multiply:

= 90

So, when you have 18 nickels, you have 90 cents

8 0

2 years ago

What is 3/22 step by step?

Anna11 [10]

Answer:

Step-by-step explanation:

First you would see how many times 3 would go into 22 and it would be 7 with a remainder of 1. Then you would do 7 times 3 which is 21. And 22 minus 21 is 1. Then your answer would be 7 with a remainder of 1. If you don't want a remainder, and you want a decimal then you would add a decimal point after the 22 and then add a 0. You would bring down the zero and then the remainder of one would be 10 then you would see how much 3 goes into 10, and it only goes 3 times. Your answer would be 7.3 with a remainder of 1, If you keep going you will see it becomes a repeating decimal. *Hope it helped*

7 0

3 years ago