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3 years ago

Identify an equation in point-slope form for the line perpendicular to

Mathematics

1 answer:

Alik [6]3 years ago

7 0

Answer:

Step-by-step explanation:

Perpendicular lines have the exact opposite slope of the other equation.

So the slope will be x or 1x. Plug in

-8 = 1(4) + b (b represents y-intercept) like y=mx+b

-8 = 4 + b (subtract 4 on both sides)

-12 = b

The equation is y = x - 12

solve

y + 8 = x - 4 (subtract 8 on both sides)

y = x - 12

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Expand and simplify 5(3x+2)-2(4x-1)

blsea [12.9K]

5(3x+2)-2(4x-1)

= 15x+10-8x+2

= 7x+12

6 0

2 years ago

Amanda is selling cupcakes to raise money for charity. On the first day, she sells 12 cupcakes for a total of $64.68. On the sec

stiv31 [10]

The exact answer would be 167.09 so if you round the closest answer is D. $170

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3 years ago

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If f(x)=2x^2+(1000/x), find the average rate of change of f(x) from x=a to x=a+h.

galina1969 [7]

Answer:

$\frac{\frac{1000}{x+h}-\frac{1000}{x}}{h}$ is your average rate of change,

Step-by-step explanation:

average rate of change is

$\frac{f(a+h)-f(a)}{a+h-a}$ , by slope formula

simplify this to get $\frac{f(a+h)-f(a)}{h}$ , which is the definition of the derivative as h goes to 0

$\lim_{h \to 0} \frac{f(a+h)-f(a)}{h}$

since you defined x=a, we can substitute a for x and vice versa to find our derivative.

$\lim_{h \to 0} \frac{(2x^2+\frac{1000}{x+h})-(2x^2+\frac{1000}{x})}{h}$

simplifying

$\lim_{h \to 0} \frac{\frac{1000}{x+h}-\frac{1000}{x}}{h}$ (your average rate of change)

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2 years ago

The %20 tip on a $73 meal need answers asap

andrezito [222]

Answer:

Bill:$73.00

Tip:$14.60

Total:$87.60

5 0

3 years ago

Read 2 more answers

How much would it be if 2 1/4 is tripled

Tcecarenko [31]

If you mean added together 3 times then it would be 6 3/4 and just in case this sounds rude I do not want it to be.

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3 years ago