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Brut [27]
3 years ago
6

The radius of a circle is (7x+3)cm. Write an expression to represent the area of the circle in simplified form

Mathematics
1 answer:
zepelin [54]3 years ago
3 0

Answer:

A = π(7x + 3)² cm²

Step-by-step explanation:

A = πr² is the appropriate equation.  If r = 7x + 3 cm, then the area of this particular circle is:

A = π(7x + 3)² cm²

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The cost of a jacket increased from $65.00 to $74.10. What is the percentage increase of the cost of the jacket?
Andreas93 [3]

Answer:

14%

Step-by-step explanation:

14% of 65 is 9.1. so 65+9.1= 74.10

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Which equation represents the proportional relationship in the table?
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C=3r or r=3c hope it helps
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Select the graph of the solution. click until the correct graph appears. 2x - 1 > 5
Usimov [2.4K]

Answer:

Our answer would be x > 3

I have attached a picture of the graph below.

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3 years ago
Make <br> x<br> the subject of the formula<br> x<br> +<br> 3<br> =<br> q
Anarel [89]

Answer:

x = q - 3

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Equality Properties

Step-by-step explanation:

<u>Step 1: Define Equation</u>

x + 3 = q

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Subtract 3 on both sides:          x = q - 3
7 0
3 years ago
Mariam is making two types of paper lanterns. One type of flashlight needs 0.75 square feet of cardboard, while the other needs
HACTEHA [7]

Answer:

Step-by-step explanation:

Mariam is making two types of paper lanterns. One type of flashlight needs 0.75 square feet of cardboard, while the other needs 1.15 square feet. If she made 5 of each type of flashlight, it means that

For the first type flashlight that she made, she used 0.75 × 5 = 3.75 square feet of cardboard.

For the second type of flashlight she made, she used 1.15 × 5 = 5.75 square feet of cardboard.

Total amount of cardboard used is

3.75 + 5.75 = 9.5 square feet

Mariam has 12.75 square feet of paper left over. Assuming the total square feet of cardboard that she used is x, then x = amount of cardboard used + the amount that is left over. It becomes

x = 9.5 + 12.75 = 22.25 square feet

She used 22.25 square feet

8 0
3 years ago
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