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2 years ago

PLEASE I NEED HELP 10 points (dont waste them) What is the area of this figure?

Mathematics

1 answer:

meriva2 years ago

4 0

Answer:

1280

Step-by-step explanation:

I think it is 1280 because 20*16*8/2=1280. I am not 100% sure.

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If d(x)=9x^2 and g(x)=5x+7 then d(x)-g(x) can be rewritten as

Angelina_Jolie [31]

Answer:

$9x^2-5x-7$

Step-by-step explanation:

$d(x)=9x^2\\g(x)=5x+7\\d(x)-g(x)=\\(9x^2)-(5x+7)=\\9x^2-5x-7$

Hope this helps!

7 0

3 years ago

Read 2 more answers

beth wants to make bags of party favors to give to her friends. Bracelets come in package of 10. Hair bows come in package of 4.

Paladinen [302]

10 = 2x5

4 = 2x2

LCM + 2x2x5 = 20 <=== smallest number of bracelets and hair bow to buy

6 0

3 years ago

What is the domain and range for the following function and its inverse?

Basile [38]

Answer:

"f(x)

domain: all real numbers, range: all real numbers

f–1(x)

domain: all real numbers, range: all real numbers"

Step-by-step explanation:

We can use the fact that the domain of a function and the range of its inverse are equal.

Also, the range of the function and the domain of its inverse are equal as well.

<em>Looking at the function f(x/ = -x + 5, we see that this is a line with a negative slope of 1 and a y-intercept of +5. </em>

As we know from the graph of lines, there is no restricting values in x and y. So for the original function, domain is the set of all real numbers and the range is the set of all real numbers.

For the inverse, the range is set of all real numbers and domain is also the set of all real numbers.

First answer choice is right.

4 0

2 years ago

(a - b)(a 2 + ab + b 2) HELP

Mila [183]

Hey there :)

( a - b )( a² + ab + b² )
Let us distribute ( a - b ) into the other

a ( a² ) + a ( ab ) + a ( b² ) - b ( a² ) - b ( ab ) - b ( b² )
a³ + a²b + ab² - a²b - ab² - b³

We can further simplify
a²b - ab² = 0
ab² - ab² = 0

a³ - b³

You can see in the picture which I have attached. It is the 8th formula

7 0

3 years ago

Read 2 more answers

40 points David invests $10,000 in a savings account that pays 3.5% simple interest. If David makes no withdrawals or deposits t

sweet [91]

Answer:

FV= $12,450

Step-by-step explanation:

Giving the following information:

David invests $10,000 in a savings account that pays 3.5% simple interest.

<u>To calculate the future value, we need to use the following formula.</u>

FV= PV*(1+i*n)

n= 7

i= 0.035

PV= 10,000

FV= 10,000*(1+0.035*7)

FV= $12,450

6 0

2 years ago