what is the slope intercept form of the linear equation with a graph that passes through (-2,2) and is perpendicular to the graph of y=1/3x+9

Answers

Answer 1

Answer:

$\text{The slope-intercept form}\ y=mx+b.\n\nLet\nk:y=m_1x+b_1\nl:y=m_2x+b_2\n\nl\ \perp\ k\iff m_1m_2=-1\n------------------------\n\text{Let}\ k:y=(1)/(3)x+9\ \text{and}\ l:y=mx+b\n\nl\ \perp\ k\iff(1)/(3)m=-1\qquad|\cdot3\to m=-3\n\nl:y=-3x+b\n\n\text{Substitute the coordinates of the point (-2, 2) to the equation}\n\text{of the line}\ l:\n\n2=-3(-2)+b\n2=6+b\qquad|-6\n-4=b\to b=-4\n\n\boxed{Answer:\ y=-3x-4}$

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What is the value of v

Answers

The value of v = 5 since dive the answer with the value of h and the then divide it the value of u.

divide the remainder with u and multiply by h.

Why is 0.04 is 1/10 of 0.4

Answers

is in mathematics means the equal sign
of in mathematics means multiplication

So translating that sentence into an algebraic expression, it would be:

0.04 = 1/10 x 0.4

And that statement is true! Because when you divide a number by 10, you move the decimal over to the left one time.

What is the total price of $123.28 with a 7.5% tip

Answers

Answer: 9.2 rounded

Step-by-step explanation:

$123.28 * 7.5% = 9.24600

It takes 28 minutes for 7 people to paint 7 walls.How many minutes does it take 14 people to paint 14 walls?

Answers

Answer: 28 minutes

Step-by-step explanation:

If M1 men can do W1 work in working H1 hours per day and M2 men can do W2 work in working H2 hours per day (where all men work at the same rate), then

$(M_1H_1)/(W_1)=(M_2H_2)/(W_2)\n\Rightarrow(7*28)/(7)=(14H_2)/(14)\n\Rightarrow(28)/(1)=H_2\n\Rightarrow\ H_2=28$

hence, It takes 28 minutes for 14 people to paint 14 walls.

Well, since you have twice as many people and twice as many walls. It would take them also 28 minutes to paint all the walls.
Hope I helped!

Paul owes Paula 3535 cents and has a pocket full of 55-cent coins, 1010-cent coins, and 2525-cent coins that he can use to pay her. What is the difference between the largest and the smallest number of coins he can use to pay her?

Answers

A 2524-cent coin and a 1010-cent coin

6. A square has a perimeter of 28 feet.What is its area?

Answers

28:4=7
7x7=49
Answer: the area of square is 49 feets`

The perimeter is 112!

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