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3 years ago

What is the slope of the line perpendicular to the equation y=3x+2?

1 answer:

6 0

The given equation of the line is in slope - intercept form where the slope is 3 and the y - intercept is 2. The line perpendicular to the given has a slope which is equal to its negative reciprocal. Thus, the slope of a line perpendicular to y = 3x + 2 is -1/3. The answer is letter D. -1/3

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Explain tge distace formula. then use it to calculate the distance between A(1,1) and B(7,-7).

Juliette [100K]

The distance formula is based on the Pythagorean Theorem:

Distance = Square Root [(X2 - X1)^2 + (Y2 - Y1)^2]
Distance = Square Root [(7 -1)^2 + (-7 -1)^2]
Distance = Square Root [ 6^2 + -8^2]Distance = Square Root [ 36 + 64 ]Distance = Square Root [100 ]Distance = 10
Source:http://www.1728.org/distance.htm

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3 years ago

|a+3| ÷(a−3) , if a=−17 Please HELP

spin [16.1K]

Answer:

-0.7

Explanation:

All you do is substitute x.

Add/Subtract from left to right.

|-17 + 3| / (-17 - 3)

Find the absolute value of |-14|.

|-14| / (-20)

Divide.

14 / (-20)

-0.7

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3 years ago

Jeremy’s house is 45 feet wide. In a photograph the width of the house was 2.5 inches, and its height was 2 inches. What is the

suter [353]

An Artist creates a scale model and of a Sculpture with a scale of 2 inches = 5 feet. If the scale model of the sculpture measures 8 inches tall, how many feet tall is the actual sculpture?

8 0

2 years ago

Read 2 more answers

A truck can be rented from Company A for $70 a day plus $0.20 per mile. Company B charges $20 a day plus $0.40 per mile to r

Otrada [13]

Answer:

For Company A to have a better deal, the truck must be driven more than 250 miles per day.

Step-by-step explanation:

Given that:

Rent per day of company A = $70

Per mile charges = $0.20

Let,

x be the number of miles.

A(x) = 0.20x + 70

Rent per day of company B = $20

Per mile charges = $0.40

B(x) = 0.40x + 20

For make Company A better deal,

A(x) > B(x)

0.20x+70 > 0.40+20

0.20x-0.40x>20-70

-0.20x>-50

Dividing both sides by -0.20

$\frac{-0.20x}{-0.20}>\frac{-50}{-0.20}\\x>250$

Hence,

For Company A to have a better deal, the truck must be driven more than 250 miles per day.

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3 years ago

What is the product of (y+3)(y^2- 3y+9)

makvit [3.9K]

Answer:

y^3+27

Step-by-step explanation:

$(y+3)(y^2-3y+9)\\$

*use box method

3 0

2 years ago