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3 years ago

You flip 3 coins. What is the probability that you get exactly 2 heads?

1 answer:

5 0

The probability of one head must be 3/8. I believe there is a 50% chance of getting a toss of more then 1 head in 3 tosses.

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Seven years less than 13 times the age

forsale [732]

It is leomar de tdegvs fef fuwhf sf sfwvfsahfbas feufbasefbsafhsef/

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3 years ago

WILL GIVE BRAINLIEST

Natasha_Volkova [10]

Answer:

see explanation

Step-by-step explanation:

In any circle the ratio of the arc length to the circumference of the circle is equal to the degree measure of the arc to 360°

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3 years ago

Type an expression using words to represent each of the given algebraic expressions. Enter your answer in the box

poizon [28]

Answer:

3 whole multiply by M subtracted from 7

Step-by-step explanation:

8 0

3 years ago

69 = 50 + s; 17, 18, 19

serious [3.7K]

The answer is 19 pls mark brainliest if correct

6 0

3 years ago

Read 2 more answers

Suppose z equals f (x comma y ), where x (u comma v )space equals space 2 u plus space v squared, y (u comma v )space equals spa

barxatty [35]

$z=f(x(u,v),y(u,v)),\begin{cases}x(u,v)=2u+v^2\\y(u,v)=3u-v\end{cases}$

We're given that $f_x(6,1)=3$ and $f_y(6,1)=-1$ , and want to find $\frac{\partial z}{\partial v}(1,2)$ .

By the chain rule, we have

$\dfrac{\partial z}{\partial v}=\dfrac{\partial z}{\partial x}\dfrac{\partial x}{\partial v}+\dfrac{\partial z}{\partial y}\dfrac{\partial y}{\partial v}$

and

$\dfrac{\partial x}{\partial v}=2v$

$\dfrac{\partial y}{\partial v}=-1$

Then

$\dfrac{\partial z}{\partial v}(1,2)=\dfrac{\partial z}{\partial x}(6,1)\dfrac{\partial x}{\partial v}(1,2)+\dfrac{\partial z}{\partial y}(6,1)\dfrac{\partial y}{\partial v}(1,2)$

(because the point $(x,y)=(6,1)$ corresponds to $(u,v)=(1,2)$ )

$\implies\dfrac{\partial z}{\partial v}(1,2)=3\cdot2\cdot2+(-1)\cdot(-1)=\boxed{13}$

4 0

3 years ago