3 years ago

Express as a trinomial. (x + 9) (3x + 9)

Mathematics

2 answers:

olasank [31]3 years ago

3 0

Answer:

3x^2+36x+81

Step-by-step explanation:

(x+9)(3x+9)=3 $x^{2}$ +9x+37x+81

Vesnalui [34]3 years ago

3 0

⇛(x + 9) (3x + 9)

⇛x(3x+9) + 9(3x+9)

⇛3x² + 9x + 18x + 81

⇛3x² + 27x + 81

You might be interested in

(-3,-8) (-12,-20) find the slope show the work

cestrela7 [59]

-20 - (-8) = -12
-12 - (-3) = -9

-12/-9 = -4/-3

slope= -4/3

7 0

3 years ago

Read 2 more answers

Divide. 21,900 / 25. Enter the exact quotient <br><br><br> Help me

andre [41]

Answer:

107 %

3 %

100 /8

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

It takes 8 hours to travel 600 miles. How fast is the car traveling?

3241004551 [841]

Answer:

75 miles per hour

Step-by-step explanation:

ok divide 600 by 8

6 0

3 years ago

One measure of general health is your body mass index (BMI). Adults with a BMI between 18.5 and 24.9 are generally considered to

soldi70 [24.7K]

Answer: 0.1797

Step-by-step explanation:

Given : $\mu=24.5\ \ ; \sigma=1.2$

Let x be the random variable that represents BMI for adults in this country.

We assume that BMI for adults in this country is normally distributed.

Then, z-score for x=25.6 , $\because z=\dfrac{x-\mu}{\sigma}$

$\Rightarrow\ z=\dfrac{25.6-24.5}{1.2}\approx0.9167$

Using z-value table , we have

The probability that the person's BMI is more than 25.6 :

$P(x>25.6)=P(z>0.9167)=1-P(z\leq0.9167)\\\\=1- 0.8203413=0.1796587\approx0.1797$

Hence, the probability that the person's BMI is more than 25.6 = 0.1797

Hence, the probability that the person's BMI is more than 25.6 = 0.1796

Hence, the probability of the stick's weight being 2.23 oz or greater = 0.0174

5 0

4 years ago

What is the measure of

Ksivusya [100]

<ABC = 1/2(82+44)
<ABC = 126/2
<ABC = 63

answer
A. 63

5 0

3 years ago