3 years ago

HELP ASAP 15 POINTS please and thanks

Mathematics

1 answer:

lana [24]3 years ago

8 0

(-2,-1) you can finds this by looking were the two lines intercept.

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Americans who are 65 years of age or older make up 13.2% of the total population. If there at 30.3 million american in this age

zhannawk [14.2K]

Given:

Americans who are 65 years of age or older make up 13.2% of the total population.

Required:

The total u.s. population

Explanation:

Let the total population of u.s be x.

According to the given condition.

$13.2\text{ \% of x = 30.3 billion}$

Therefore,

$\begin{gathered} \frac{13.2}{100}\text{ }\times\text{ x = 30.3} \\ x\text{ = }\frac{30.3\text{ }\times\text{ 100}}{13.2} \\ x\text{ = 229.55 billion} \end{gathered}$

Answer:

Thus the total population of u.s is 229.55 billion.

4 0

1 year ago

What is the equation of the graph below? A graph shows a parabola that opens up and crosses the x axis at negative two and negat

Anastaziya [24]

Answer:

$y=(x+3)^{2} -1$

Step-by-step explanation:

General equation of a parabola that opens up is $y=a(x-h)^{2} +k$ , a>0

So equation becomes $y=(x-h)^{2} +k$ which implies option A and option B can never be true for this parabola.

Also this parabola's vertex lies in 3rd quadrant where coordinates of both x and y will be negative.

So, the equation of parabola will be of the form $y=(x+h)^{2} - k$

Hence, option 4 that is $y=(x+3)^{2} -1$ is correct.

4 0

3 years ago

Read 2 more answers

Convert 65 mm to meters

Ymorist [56]

0.065 meters is equal to 65 millimeters

7 0

4 years ago

Simplify the number using the imaginary unit I. <br><br> <img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B-28%7D%20" id="TexFormul

KonstantinChe [14]

2i√7 that is your answer

4 0

4 years ago

Solve for C when 9=c(c-8)<br><br> Can you show your work too? This question confuses me!

Marrrta [24]

9 = c(c - 8)
9 = c² - 8c
c² - 8c - 9 = 0
c² + c - 9c - 9 = 0
c(c + 1) -9 (c + 1) = 0
(c+1)(c-9) = 0
c = -1 or 9

In short, Your Answers would be -1 and 9

Hope this helps!

8 0

4 years ago