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3 years ago

Number 4 please asap!!!!!!!

Mathematics

1 answer:

Annette [7]3 years ago

8 0

I would say it's H because 4 and 3 add to be 7

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Which graph would represent x<2 ??? please help me quick

Vladimir79 [104]

Answer:

it is the bottom right answer

Step-by-step explanation:

im smart

7 0

2 years ago

If ƒ(x) = x + 2 and g(x) = 3x2 + 7x, find ....

Tamiku [17]

Answer:

The correct answer is option C

(f o g)(x) = 3x² + 7x + 2

Step-by-step explanation:

<u>Points to remember</u>

<u>Composite functions</u>

Let f(x) and g(x) be the two functions then (f o g)(x) can be written as

(f o g)(x) = f(g(x))

<u>To find the value of (f o g)(x)</u>

Here f(x) =x + 2 and g(x) = 3x² + 7x

(f o g)(x) = f(g(x))

= f(3x² + 7x)

= 3x² + 7x + 2

Therefore the correct answer is option C

(f o g)(x) = 3x² + 7x + 2

7 0

3 years ago

Plssssss help meh with this

Naddik [55]

Answer:

<h2><em><u>ᎪꪀsωꫀᏒ</u></em></h2>

➪-263

Step-by-step explanation:

-3x²-20

-3(-9)²-20

-3(81)-20

-243-20

-263

5 0

2 years ago

Read 2 more answers

Set up the equation to find the AREA of the SMALL rectangle with a length of (x) and width (x+7)

Igoryamba

<u>Answer:</u>

<u>Step-by-step explanation:</u>

To find the area of a rectangle, we have to multiply the length with the width.

In the question, the given length is 'x' and the width given is 'x +7'

So, the area would be

( $x$ ) x ( $x + 7$ )

The area = $x^{2} + 7x$

So, the equation to find the area of such a rectangle would be:-

( $x$ ) x ( $x + 7$ )

7 0

2 years ago

Seventy-six percent of sunflower seeds will germinate into a flower, and a sample of 800 such sunflower seeds is randomly select

ollegr [7]

Answer:

12.08

Step-by-step explanation:

For each sunflower, there are only two possible outcomes. Either it germinates, or it does not. The probability of a sunflower germinating is independent of other sunflowers. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

Probability of exactly x sucesses on n repeated trials, with p probability.

The standard deviation of the binomial distribution is:

$\sqrt{V(X)} = \sqrt{np(1-p)}$

Seventy-six percent of sunflower seeds will germinate into a flower

This means that $p = 0.76$

Samples of 800:

This means that $n = 800$

The standard deviation for the number of sunflower seeds that will germinate in such samples of size 800 is:

$\sqrt{V(X)} = \sqrt{np(1-p)} = \sqrt{800*0.76*0.24} = 12.08$

5 0

3 years ago