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3 years ago

Shortcuts?:) Find dy/dx y=-3x^7

1 answer:

4 0

Knowing the power rule:
dx*n*x^(n-1) all you'd need to do is bring the 7 down and multiply it by -3, then subtract 1 from 7. Because dx is 1 you don't need to worry about it (you'll use chain rule for that)
So your final answer should be dy/dx= -21x^6

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What's the exact value of tan 15°?

dlinn [17]

Answer:

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3 years ago

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A taxi cab charges a flat rate of $3 in addition to $1.80 per mile, m, traveled. Jennifer has no more than $25 to spend on a rid

prohojiy [21]

Answer:

m is less than or equal to 12.2

Step-by-step explanation:

$3+$1.80(m) is less than or equal to $25.00

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4 years ago

What is the slope of a line that is parallel to the line y=3/4x+2

stepladder [879]

If two lines are parallel to one another, then their slopes are identical. The slope in the line above is 3/4. Therefore, a line parallel to that line will also have a slope of 3/4, it will just have a different y-intercept.

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3 years ago

Graph the equation- 2x-3y=43

storchak [24]

You'd have to turn it into slope-intercept form. To do this you subtract 2x from both sides then divide -3 on both sides:

2x - 3y = 43

2x - 3y -2x = 43 -2x

-3y = -2x + 43

-3y/-3 = -2x/-3 + 43/-3

y = 2/3x - 43/3

The y intercept would be - 43/3 and the slope is 2/3.

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4 years ago

I need help on these two questions please.

kogti [31]

Answer:

7)x=20 8)x=19

Step-by-step explanation:

7)4x-40=2x

4x-2x=40

2x=40

x=20

2x+19=3x

3x-2x=19

x=19

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4 years ago