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4 years ago

PLEASE ANSWERRRRRRRRRRRRRRRRRRRR

Mathematics

1 answer:

Tresset [83]4 years ago

4 0

no solution

sorry its ins

Step-by-step explanation:

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U 1995, 70% of all children in the U.S. were living with both parents. If 25 children were selected at random in the U.S., what

nikdorinn [45]

<u>Answer:</u>

The probability that at most 10 of them will be living with both of their parents is 0.0018

<u>Solution:</u>

Given, US 1995, 70% of all children in the U.S. were living with both parents. 25 children were selected at random in the U.S.,

We have to find what is the probability that at most 10 of them will be living with both of their parents?

Now, number of children picked (n) = 25.

Probability to be with parents = 70% = 0.7.

Our condition is 0 ≤ x ≤ 10.

Then, we have to calculate p(0 ≤ x ≤ 10).

We can calculate using binomial cumulative distribution frequency- binomial CDF

Now, p(0 ≤ x ≤ 10) = binomcdf(n, p, x) = binomcdf(25, 0.7, 10) = 0.00177840 ≈ 0.0018.

Hence, the probability is 0.0018

6 0

3 years ago

Anyone? /: please help!!

NeTakaya

The answer is Side RQ corresponds to side QQ'. 100% sure and please feel free to ask more.

5 0

3 years ago

Use synthetic division to determine whether the number k is an upper or lower bound (as specified) for the real zeros of the fun

anastassius [24]

Answer:

Yes, k is lower bound for the real zeros of the function.

Step-by-step explanation:

Lower Bound Theorem:

If you divide a polynomial function f(x) by (x - k), where k < 0, using synthetic division and this yields alternating signs, then k is a lower bound to the real roots of the equation f(x) = 0.

Given;

4x³ - 2x² + 2x + 4

k = -1

synthetic division;

-1 ] 4 -2 2 4

↓ -4 6 -8

---------------------------------------------

4 -6 8 -4

(the result has alternating signs, hence k is lower bound)

Thus, k is lower bound for the real zeros of the function.

5 0

3 years ago

Given that f(x) = x2 − 4x − 3 and g(x) = the quantity of x plus three, over four, solve for f(g(x)) when x = 9.

eimsori [14]

Hello! To find the composition of functions we want to take all the x values in f(x) and replace them with g(x). Then to solve for a specific value, we plug in that value for x. Let's look at the steps below
$f(x)=x^{2} -4x-3$
$g(x)=\frac{x+3}{4}$

So we find
$f(g(x))=f(g(9))=(\frac{9+3}{4})^2 - 4(\frac{9+3}{4})-3$
$=3^2 - 4(3)-3$
$= 9-12-3=-6$
Now we want to find the solution when x is 9 so we plug in a 9 whenever we see an x

7 0

3 years ago

What is -1 5/6 thanks

grigory [225]

Answer:

Step-by-step explanation:

5/6 = 0.83333

-1 = -1

Putting the two together, we get: -1.833333 or -1.83.

I'm always happy to help :)

7 0

3 years ago

Read 2 more answers