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dolphi86 [110]
4 years ago
9

PLEASE HELP!!!!!!!!

Mathematics
1 answer:
kykrilka [37]4 years ago
6 0

Answer: A)42 im pretty sure

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3 is what precent of 5?
valentinak56 [21]

Answer: 3 is 60 percent of 5

Step-by-step explanation:60%

What percent is 3% of 5%? So, the answer in this case would be 60%

3 0
2 years ago
Evaluate C_n.xP^xQn-x For the given n=7, x=2, p=1/2
r-ruslan [8.4K]

Answer:

The value of given expression is \frac{21}{128}.

Step-by-step explanation:

Given information: n=7, x=2, p=1/2

q=1-p=1-\frac{1}{2}=\frac{1}{2}

The given expression is

C(n,x)p^xq^{n-x}

It can be written as

^nC_xp^xq^{n-x}

Substitute n=7, x=2, p=1/2 and q=1/2 in the above formula.

^7C_2(\frac{1}{2})^2(\frac{1}{2})^{7-2}

\frac{7!}{2!(7-2)!}(\frac{1}{2})^2(\frac{1}{2})^{5}

\frac{7!}{2!5!}(\frac{1}{2})^{2+5}

\frac{7\times 6\times 5!}{2\times 5!}(\frac{1}{2})^{2+5}

21(\frac{1}{2})^{7}

\frac{21}{128}

Therefore the value of given expression is \frac{21}{128}.

7 0
3 years ago
Solve for x.<br> y=(x + a)m
Nikolay [14]

Answer:

x = y/m - a

Step-by-step explanation:

divide both side by m

y/m = x + a

subtract a from both sides

y/m - a = x

switch sides.

x = y/m - a

4 0
3 years ago
Write an algebraic equation to match each graph. (These graphs are not drawn to scale!) please help! i will make brainliest answ
ddd [48]

Answer:

the expression of this function is:

f(x)=|x-1|-1

Step-by-step explanation:

This graph corresponds to an absolute value function, which as you can see has the minimum (vertex) at the point (1, -1) on the plane, and also that goes through the origin of coordinates (0, 0)

therefore, notice that from the point (0, 0) to (1, -1) there is a slope of "-1" which is going to characterize the steepness of the x- variable that resides inside the absolute value function. since the vertex has also moved from the characteristic (0, 0) in the function:

f(x)=|x|

then we have to include a horizontal shift to the right in one unit (by subtracting 1 units from x), and a vertical shift  downwards one unit (by subtracting 1 from the full absolute value expression) in order to shift the vertex to the position (1, -1):

f(x)=|x-1|-1

3 0
3 years ago
Find the probability that the results is not (6,heads)
Dovator [93]

Answer:

1:5

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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