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Reika [66]
3 years ago
13

PLEASE HELP!!!!!!!

Mathematics
1 answer:
gayaneshka [121]3 years ago
6 0

Answer: The first set's mad is 2

The 2nd set's mad is 2 as well

The mean of the 1st set is 2

The mean of the 2nd set is 2

0

0

0

Based on even a calculator this is the information. I made sure it is correct with the calculator.

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7+7=14RIGHT.Then WHAT IS14-7.A=33×4=___a
JulijaS [17]
14-7=7, and 33×4 is 132
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3 years ago
Please help me! Thanks
Yuki888 [10]

Answer:

The answer is D. 22

Step-by-step explanation:


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What is the vertex of the parabola y=2x2+20x-15?<br><br> (5, 135)<br> (-5, -165)<br> (-5, -65)
maria [59]

Answer:

-296=2×2+20×-15that is the answer

Step-by-step explanation:

you need to calculate the equation step by step to get to the answer

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What is the slope of a line with the equation y = 5x + 2?
Marta_Voda [28]
Its 6 .................
6 0
4 years ago
A wooden log 10 meters long is leaning against a vertical wall with its other end on the ground. The top end of the log is slidi
Andre45 [30]

Answer:

Step-by-step explanation:

This is a related rates problem from calculus using implicit differentiation. The main equation is Pythagorean's Theorem. Basically, what we are looking for is \frac{dx}{dt} when y = 6 and \frac{dy}{dt}=-2.

The equation for Pythagorean's Theorem is

x^2+y^2=c^2 where x and y are the legs and c is the hypotenuse. The length of the hypotenuse is 10, so when we find the derivative of this function with respect to time, and using implicit differentiation, we get:

2x\frac{dx}{dt}+2y\frac{dy}{dt}=0 and divide everything by 2 to simplify:

x\frac{dx}{dt}+y\frac{dy}{dt}=0. Looking at that equation, it looks like we need a value for x, y, \frac{dx}{dt} and \frac{dy}{dt}.

Since we are looking for \frac{dx}{dt}, that can be our only unknown and everything else has to have a value. So what do we know?

If we construct a right triangle with 10 as the hypotenuse and use 6 for y, we can solve for x (which is the only unknown we have, actually). Using Pythagorean's Theorem to solve for x:

x^2+6^2=10^2 and

x^2+36=100 and

x^2=64 so

x = 8.

NOW we can fill in the derivative and solve for \frac{dx}{dt}.

Remember the derivative is

x\frac{dx}{dt}+y\frac{dy}{dt}=0 so

8\frac{dx}{dt}+6(-2)=0 and

8\frac{dx}{dt}-12=0 and

8\frac{dx}{dt}=12 so

\frac{dx}{dt}=\frac{12}{8}=\frac{6}{4}=\frac{3}{2}=1.5 m/sec

7 0
3 years ago
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