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2 years ago

Multiple Choice question

Mathematics

2 answers:

Veronika [31]2 years ago

6 0

SERIOUSLY?!?!?! the anser is the second one there are noe letters so b

vekshin12 years ago

5 0

Answer:b

Step-by-step explanation:

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Give the following equations determine if the lines are parallel perpendicular or neither

GaryK [48]

In order to determine whether the equations are parallel, perpendicular, or neither, let's simply each equation into a slope-intercept form or basically, solve for y.

Let's start with the first equation.

$\frac{6x-5y}{2}=x+1$

Cross multiply both sides of the equation.

$6x-5y=2(x+1)$ $6x-5y=2x+2$

Subtract 6x on both sides of the equation.

$6x-5y-6x=2x+2-6x$ $-5y=-4x+2$

Divide both sides of the equation by -5.

$-\frac{5y}{-5}=\frac{-4x}{-5}+\frac{2}{-5}$ $y=\frac{4}{5}x-\frac{2}{5}$

Therefore, the slope of the first equation is 4/5.

Let's now simplify the second equation.

$-4y-x=4x+5$

Add x on both sides of the equation.

$-4y-x+x=4x+5+x$ $-4y=5x+5$

Divide both sides of the equation by -4.

$\frac{-4y}{-4}=\frac{5x}{-4}+\frac{5}{-4}$ $y=-\frac{5}{4}x-\frac{5}{4}$

Therefore, the slope of the second equation is -5/4.

Since the slope of each equation is the negative reciprocal of each other, then the graph of the two equations is perpendicular to each other.

5 0

1 year ago

bob charges 6.25 per hour for washing cars, If he works 8 1/2 hours a day, about how much money would bob make in a 5 day week?

Komok [63]

Answer:

265.65

Step-by-step explanation:

6.25*8 =50

6.25/2=3.13

50+3.13=53.13

53.13*5=265.65

6 0

3 years ago

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David hikes 2 ¼ miles in ½ an hour at this rate, how long will it take him to walk 18 miles?

8090 [49]

So in 30 min will hike 2 1/4 miles =9 of those 1/4 miles therefore in 10 min will hike 9/3 =3 of those 1/4 miles = 3/4 of a mile

3/4 mile in 10 min;
(3/4)• 4 = 3 miles in 40 min;
6 miles in 80 min;
9 miles in 120 min;
12 miles in 160 min;
15 miles in 200 min;
18 miles in 240 min or 4 hours

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3 years ago

1. Use the quadratic, x? + 18x = 25 to answer the following questions.

makvit [3.9K]

Answer:

FIRST PROBLEM:

Exact Form:

x = 25 /19

Decimal Form:

x = 1.31578947

Mixed Number Form:

x = 1 6 /19

SECOND PROBLEM

Exact Form:

x = − 9 + √ 106 , − 9 − √ 106

Decimal Form: x = 1.29563014 , − 19.29563014

Step-by-step explanation:

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3 years ago

At Rick's Pizza, they always put exactly 6 pieces of pepperoni on each slice of pizza. Each pizza has 10 slices. How many pieces

Grace [21]

Answer:

360

Step-by-step explanation:

6×10=60

60×6=360

4 0

3 years ago

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