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Ierofanga [76]
3 years ago
5

What is the circumference of a circle with a radius of 4 inches?

Mathematics
1 answer:
uysha [10]3 years ago
4 0

Answer:

2.512

Step-by-step explanation:

the equation for circumference of a circle is

2(pi)r

plug in the 4

2(pi)4

combine like terms

8(pi)

you can leave the answer as is or you can multiply

8(3.14)= 2.512

the answer would be 2.512

***pi is equal to 3.14, if you are not allowed to keep your answer in terms of pi there is a pi button on the calculator you can use, or simply plug in 3.14

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What is the value of x in the equation 3- 2x = -1.5х?
Vika [28.1K]

Answer:

x = 6

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>

3 - 2x = -1.5x

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

  1. Add 2x on both sides:                    3 = 0.5x
  2. Divide 0.5 on both sides:               6 = x
  3. Rewrite:                                           x = 6

<u>Step 3: Check</u>

<em>Plug in x into the original equation to verify it's a solution.</em>

  1. Substitute in<em> x</em>:                    3 - 2(6) = -1.5(6)
  2. Multiply:                               3 - 12 = -9
  3. Subtract:                              -9 = -9

Here we see that -9 does indeed equal -9.

∴ x = 6 is the solution to the equation.

6 0
2 years ago
Read 2 more answers
Circle O is shown. Line segments E O and E O are radii with length 24. Angle D O E is 45 degrees. The area within sector D O E i
AfilCa [17]

Answer:

Its 72Pi. (Option C)

Step-by-step explanation:

Took it on Edge and got it right

7 0
3 years ago
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How do you combine like terms with a already answered questions
mestny [16]

Answer:

u put the algebraic like terms together whether they add or subtract each other

7 0
2 years ago
79% of 67 miles is what? Round answer to tenths place.
Neporo4naja [7]

Answer:

52.9

Step-by-step explanation:

Multiply 67 by .79

6 0
3 years ago
Find the Area &amp; Circumference of a circular pizza with a diameter of 22.0cm.
nirvana33 [79]

Answer:

  • Circumference = 69.14cm
  • Area = 380.29cm²

Step-by-step explanation:

Circumference.

Circumference of a circle is calculated by the formula:

= Pie * diameter

= π * diameter

= 22/7 * 22

= 69.14 cm

Area

Area of circle:

= Pie * radius ²

Radius = diameter/2

= 22/2

= 11 cm

Area = 22/7 * 11²

= 22/7 * 121

= 380.29 cm²

6 0
3 years ago
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