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Leya [2.2K]
3 years ago
11

Which of the following is the equation of a line perpendicular to the line y = -10x + 1, passing through the point (5,7)?

Mathematics
2 answers:
Viktor [21]3 years ago
6 0
Line 1;
y=-10x+1
Gradient m= -10
Gradient of line 2= 1/10
\frac{y-5}{x-7} = \frac{1}{10}
y-5=\frac{1}{10} {x-7}
y-5=\frac{1}{10} x- \frac{7}{10}
y=\frac{1}{10} x- \frac{43}{10}

Zigmanuir [339]3 years ago
4 0
The answer is C. This is because when you solve you get y=1/10x+6.5 this graph runs through the point (5,7) and is perpendicular to y=-10x+1. In order for two equations to be perpendicular their slopes will be the opposite. 
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The diagonal of a square has length 10√2. Find the area of the square.
alex41 [277]

Answer: A = 100 square unit

Step-by-step explanation:

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3 0
3 years ago
A company makes pens. They sell each pen for $99.
Sindrei [870]

Answer:

a) Profit = 84000

b) at break even number of pens sold = 46

Step-by-step explanation:

Profit = Selling price - Cost price

Total revenue generated = 99 * 1000

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Total cost on making the pen = 11000

Total cost including the initial cost = 11000 + 4000

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Profit = 99000 - 15000

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Break even is when the cost are equal to Revenue thus no profit or loss

Revenue = total cost (break even)

9x = 1x + 4000

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At breakeven Revenue = 9 * 500

At breakeven Revenue =  4500

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at break even number of pens sold = 46

4 0
3 years ago
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