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xxTIMURxx [149]

3 years ago

11

Mike has a stack of 10 cars number 1 to 10. If he randomly chooses to cards without replacing the first car drawn, what is the p

robability that Mike would pick two cars are less than five?

1 answer:

olasank [31]3 years ago

5 0

Im sorry i dont really know

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A . 12<br> B . 15<br> C . 36<br> D .39

yulyashka [42]

Answer:

The answer is 36 or c all you need to do is multiply 12 by 3

7 0

2 years ago

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How would I find the Max/min of this function f(x) = 2x squared +18x +16

slamgirl [31]

F(x)=2x²+18x+16
1) we have to calculate the first derived.

f´(x)=4x+18

2) Now, we equalize the first derived to "0" and find out the value of "x"
4x+18=0
4x=-18
x=-18/4=-4.5

3)we calculate the second derived
f´´(x)=4>0 ⇒we have a minimum at x=-4.5

4) Now we calculate the value of "y".
f(-4.5)=2(-4.5)²+18(-4.5)+16=40.5-81+16=-24.5

Therefore; Exist a minimum at (-4.5 , -24.5)

7 0

3 years ago

If all the dimensions of the rectangular pyramid are multiplied by 1/5, what is the effect on the volume

Pachacha [2.7K]

Answer:

If all the dimensions of the rectangular pyramid are multiplied by 1/5, the volume will be 125 times smaller.

Step-by-step explanation:

A rectangular pyramid has the following dimensions:

length(l), height(h) and width(w)

The volume is:

$V = \frac{l*h*w}{3}$

If all the dimensions of the rectangular pyramid are multiplied by 1/5

Then we have that:

$l = \frac{l}{5}, w = \frac{w}{5}, h = \frac{h}{5}$

The modified volume will be:

$V_{M} = \frac{\frac{l}{5}*\frac{w}{5}*\frac{h}{5}}{3} = \frac{\frac{l*w*h}{125}}{3} = \frac{l*h*w}{125*3} = \frac{1}{125}(\frac{l*h*w}{3}) = \frac{V}{125}$

So

If all the dimensions of the rectangular pyramid are multiplied by 1/5, the volume will be 1/125 of the original, that is, 125 times smaller.

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2 years ago

A football field is shaped like a

MrRa [10]

Answer:

18x^2

Step-by-step explanation:

You're basically just multiplying them together :)

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3 years ago

Solve the following system of equations.<br><br> 2x+y=3<br> x=2y-1

Anvisha [2.4K]

Answer:

Step-by-step explanation:

1,1

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3 years ago

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