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3 years ago

15

Help me with this please

1 answer:

SCORPION-xisa [38]3 years ago

8 0

Answer:

what grade is that 4

Step-by-step explanation:

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What’s the mean of these numbers: 7, 14, 15, 9, 11, 14, 11, 10, and 17

harkovskaia [24]

Answer:

12

Step-by-step explanation:

Mean is the average of all the numbers. Add up all the numbers then divide by how many you have.

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3 years ago

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Write "yes" or "no" to state whether or not the given side lengths would form a right triangle.

ser-zykov [4K]

Answer:

"yes" or "no"

Step-by-step explanation:

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2 years ago

Seana picked 3/4 quart of black berries. She ate 1/12 quart, how much was left?

WITCHER [35]

8/12 is left
3/4 is equivalent to 9/12 (multiply by 3)
9/12 minus 1/12 is 8/12

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3 years ago

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"Find the value of the derivative (if it exists) at each indicated extremum. (If an answer does not exist, enter DNE.) f (x) = c

Oliga [24]

$\bf f(x)=cos\left( \frac{\pi x}{2} \right)\implies \cfrac{df}{dx}=\stackrel{chain~rule}{-sin\left( \frac{\pi x}{2} \right)\cdot \frac{\pi }{2}}$

now, what is the value of the derivative at any extrema on the original function? well, by definition, if the original function has an extrema anywhere, the derivative will be the derivative of a horizontal tangent line to it, and by definition it'll be 0.

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3 years ago

Amy sells tote bags at a craft fair for a day. She pays$50 to rent a booth. The materials and labor cost on each is $3.50. Her e

rjkz [21]

If you want the expression, the expression would be:

3.5x+50

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3 years ago