The length of a side of an equilateral triangle is x - 4.5. First express its perimeter as a sum. Next express its perimeter as a product. Explain why the two expressions are equivalent.

Answers

Answer 1

Answer: Equilateral triangle means all sides have equal length.
Perimeter
As a sum: (x-4.5)+(x-4.5)+(x-4.5)
As a product: 3 * (x-4.5)
They are equivalent because 3 times a number is just the sum of three of the number.

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If you are going to use the ASA postulate to prove these triangles congruent what additional information do you need?

Answers

Answer:

∠C and ∠R

Step-by-step explanation:

The ASA postulate represents angle / side / angle

where the included side is the side between the vertices of the two angles.

∠H and ∠I and the sides HC and IR are the AS

The required angles would be ∠C and ∠R for ASA

T-5=0 what is the answer

Answers

T-5=0 so t is 5 5-5=0

T = 5. That's the answer to the question because if I do inverse operation, 0 + 5 equals 5.

3. The value of a professional basketball player's autograph rose 20% in the last year. It is now worth $300.00. What was it worth a year ago?

Answers

300.00*.2=60

300-60=240

final answer is $240.00

im not sure if this is right...but I believe the answer is A

each box of party invitations cost $6 Jenny bought three boxes of invitations she paid with a $20 bill complete the number sentences to find out to find how much change Jenny got

Answers

Answer:

jenny gets $2 in change because $6 times 3 is 18 and 20-18 is 2. I hope this helps

Step-by-step explanation:

PLEASE HELP! AND SHOW ALL WORK AND CALCULATIONS 4x + 1/3 y^2

What is the value of the expression above when x = 2 and y = 3? You must show all work and calculations to receive full credit. (4 points)

Answers

Work is shown in the attached picture :)

4.2 + 1/3 . 3^2
= 8 + 9/3
= 8 + 3 = 11

Thank you very much.

When should Estimation not be used?A. When adding many numbers mentally

B. When subtracting large numbers mentally

C. when finding the exact amount

Answers

C. when finding the exact amount

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