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3 years ago

Plssss hurrryyyyyy and answerrrrrrrrrr it's due by tonight!!!!!!!! I will give brainliest

Mathematics

1 answer:

Sholpan [36]3 years ago

6 0

Answer:

Line m

Step-by-step explanation:

The points are ranged from the region of ages 2-12. These points are aligned and near Line m.

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What is the simplest form of this expression?<br> 4(y + 2) - 2

Semenov [28]

The simplest form is 4y+6?

you distribute the 4 to everything in the parentheses and then combine like terms so you would combine the 8 and -2

6 0

3 years ago

Read 2 more answers

Im need help on this question

dimulka [17.4K]

You were right, its the second choice CA=CB+BA

4 0

3 years ago

To qualify for a police academy, candidates must score in the top 10% on a general abilities test. The test has a mean of 200 an

kolbaska11 [484]

Answer:

z = 1.28 < a - 200/20

And if we solve for a we got

a = 200 + 1.28 * 20 = 225.6

So the value of height that separates the bottom 90% of data from the top 10% is 225.6.

Step-by-step explanation:

Let X the random variable that represent the scores of a population, and for this case we know the distribution for X is given by:

X ~ N (200,20)

For u = 200 and o = 20

For this case we can use the z score in order to solve this problem, given by this formula:

Z = x-u/o

For this part we want to find a value a, such that we satisfy this condition:

P (X > a) = 0.1 (a)

P (X < a) = 0.9 (b)

Both conditions are equivalent on this case. We can use the z score again in order to find the value a.

As we can see on the figure attached the z value that satisfy the condition with 0.9 of the area on the left and 0.1 of the area on the right it's z=1.28. On this case P(Z<1.28)=0.9 and P(z>1.28)=0.1

If we use condition (b) from previous we have this:

P ( X < a) = P (X-u/o < a - u/o) = 0.9

P (z < a-u/o) = 0.9

But we know which value of z satisfy the previous equation so then we can do this:

z = 1.28 < a - 200/20

And if we solve for a we got

a = 200 + 1.28 * 20 = 225.6

So the value of height that separates the bottom 90% of data from the top 10% is 225.6.

3 0

2 years ago

What is 6 times (12-4) in words?

Alika [10]

Six times twelve minus 4 equals forty-eight

3 0

3 years ago

Read 2 more answers

Let f(x) = x ^ 2 - x - 2 and g(x) = - 6x - 8. Find g(2) and f(g(2)). Mathfrak g (2)= Box (Simplify your answer. ) f(g(2)) = ( Si

jek_recluse [69]

The value of the function f(g) after simplifying and putting 2 in place of <em>x</em> is -20 and the value of f(g(2)) is 418.

<h3>What is composite function?</h3>

When a function is written inside the another function, then such function is called the composite function.

The first function given in the problem is,

$f(x) = x^2 - x - 2$

The second function given,

$g(x) = - 6x - 8$

To find out the value of g(2), put the 2 on place of variable x in the above equation as,

$g(2) = - 6(2) - 8\\g(2)=-12-8\\g(2)=-20$

The composite function f(g(x)) can be given as,

$f(g(2))= (-20)^2 - (-20) - 2\\f(g(2))=418$

Thus, the value of the function f(g) after simplifying and putting 2 in place of <em>x</em> is -20 and the value of f(g(2)) is 418.

Learn more about the composite function here:

brainly.com/question/10687170

5 0

2 years ago

Plssss hurrryyyyyy and answerrrrrrrrrr it's due by tonight!!!!!!!! I will give brainliest​

Plssss hurrryyyyyy and answerrrrrrrrrr it's due by tonight!!!!!!!! I will give brainliest