3 years ago

Simply (7)(-6) show work

1 answer:

3 0

$7*(-6)=-42$

Multiply 7 and 6 to get 42 and add a negative to 42 since one number in any multiplication problem will always have a negative answer.

Therefore it's -42.

Hope that helps.

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Pedro bought a movie ticket for $9.50 and popcom por $4.35. He has $8.75 left

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Answer:

He had $22.60

Step-by-step explanation:

$9.50 + $4.35 = 13.85 + 8.75 = $22.60

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3 years ago

Andrea and Helen participated in a donut eating contest. Andrea ate six more than four times the number of donuts that Helen ate

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4 years ago

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Suppose that the volume of a right circular cylinder is 500 pi cubic centimeters and the area of its base is 5 centimeters. what

Genrish500 [490]

Answer:

A) 20 cm

Step-by-step explanation:

V = pi * r^2 * h

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hopes this helps! <3

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2 years ago

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3 years ago

For the function f(x) = x2 + 3, find the slope of the tangent line at x = 11.

Vika [28.1K]

Given:

The function is

$f(x)=x^2+3$

To find:

The slope of the tangent line at x = 11.

Solution:

The slope of the tangent is the value of f'(x) at x=11.

We have,

$f(x)=x^2+3$

Differentiate with respect to x.

$f'(x)=2x+0$ $\left[\because \dfrac{d}{dx}x^n=nx^{n-1},\dfrac{d}{dx}C=0,\text{ where C is constant}\right]$

$f'(x)=2x$

Substitute x=11 in the above equation.

$f'(11)=2(11)$

$f'(11)=22$

Therefore, the slope of the tangent at x=11 is 22.

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3 years ago