All categories

3 years ago

Evaluate the exponential expression: (2x)2−3y2=___, if x = 5 and y = 3.

Mathematics

1 answer:

777dan777 [17]3 years ago

7 0

Answer:

Step-by-step explanation:

Put the values of the variables where the variables are, then do the arithmetic.

(2·5)^2 -3·3^2 = 10^2 -3·9 = 100 -27 = 73

___

Or, you can let a calculator or spreadsheet evaluate the function for you.

You might be interested in

Jamaal spent x minutes today practicing his guitar and y minutes today on homework. If the total time he spent on both is 45 min

Vlad [161]

The best and most correct answer among the choices provided by your question is the fourth choice or letter D.

The inequality that best represents his practice time is x + y ≥ 45.

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!

7 0

3 years ago

Read 2 more answers

You want to purchase a new car in 5 years and you anticipate the cost of the car to be $55,000. You are given an investment plan

Usimov [2.4K]

Wow - that is an unusual calculation. You'll need a formula for the monthly payment of a monthly annuity, and it is located here:
http://www.1728.org/annuity3.htm (see formula 2)
You'll find THAT page and THIS page very helpful:
http://www.1728.org/annuitym.htm

rate = rate / 1,200
rate = 0.005166666667 
n= number of months = 5 * 12 = 60

monthly amount = [Total] / ([(1 + rate)^(n+1) -1] / [rate]) -1

monthly amount =
55,000 / [[( 1.005166666667)^(61)-1] / 1.005166666667] -1

monthly amount = 55,000 / [[1.3693761617 -1] / .005166666667]-1
monthly amount = 55,000 / [[.3693761617] / .005166666667]-1
monthly amount = 55,000 / (( 71.4921603244)-1)
monthly amount = 55,000 / ( 70.4921603244)
monthly amount = 780.2286062293 
OR 780.23 (rounded)

Yes, it's just that "simple". LOL

5 0

4 years ago

Read 2 more answers

Look at the figure above: If the measure of <MNL is 43°, find the measures of the following angles. Be sure to justify each m

zimovet [89]

Answer:

NP = 43

LNO = 137

MNP = 137

Step-by-step explanation:

MNL is a vertical angle to PNO, therefore they are equal

MNL = PNO

MNL = 43 = PNO

MNL and LNO are supplementary angles. They add to 180 degrees

MNL + LNO = 180

43+LNO = 180

Subtract 180 from each side

43-43 +LNO = 180-43

LNO = 137

LNO and MNP are vertical angles. Vertical angles are equal

LNO = MNP

137=MNP

3 0

3 years ago

Solve for x. 9(−5+x)=−108 Enter your answer in the box

fenix001 [56]

Answer:

x=-7

Step-by-step explanation:

Solve by isolating x on the left-hand side:

$9(-5+x)=-108\\-5+x=-12\\x=-7$

4 0

3 years ago

1. −4n−8=4(−3n+2) 2. a−15=4a−3 what is the solution for 1 and what is the solution for 2

Contact [7]

Answer:

n = 2 and a = - 4

Step-by-step explanation:

(1)

- 4n - 8 = 4(- 3n + 2) ← distribute parenthesis

- 4n - 8 = - 12n + 8 ( add 12n to both sides )

8n - 8 = 8 ( add 8 to both sides )

8n = 16 ( divide both sides by 8 )

n = 2

(2)

a - 15 = 4a - 3 ( subtract a from both sides )

- 15 = 3a - 3 ( add 3 to both sides )

- 12 = 3a ( divide both sides by 3 )

- 4 = a

3 0

3 years ago