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3 years ago

Simplity 82 - 6(7 - 4) + 2

Mathematics

1 answer:

Arlecino [84]3 years ago

8 0

Answer:

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Step-by-step explanation:

Step 1: Define Expression

82 - 6(7 - 4) + 2

Step 2: Evaluate

(Parenthesis) Subtract: 82 - 6(3) + 2
Multiplication: 82 - 18 + 2
Subtraction: 64 + 2
Addition: 66

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The volume of a sphere is 28/3 times it surface area, find the surface area

pentagon [3]

Answer:

615.44 units squared

Step-by-step explanation:

Let the volume and surface area of the sphere be V and S respectively.

$\therefore V = \frac{28}{3} \times S\\\\\therefore \frac{4}{3} \pi {r}^{3} = \frac{28}{3} \pi {r}^{2} \\ \\ \frac{ {r}^{3} }{ {r}^{2} } = \frac{28\pi}{3} \times \frac{3}{4\pi} \\ \\ r = 7 \: units \\ \\ \because S = 4\pi {r}^{2} \\ \\ \therefore \: S = 4 \times 3.14 \times {7}^{2} \\ \\ \therefore \: S = 12.56 \times 49 \\ \\ \therefore \: S =615.44 \: {units}^{2}$

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3 years ago

If m1 =53 what is m3

Thepotemich [5.8K]

Answer:

143

Step-by-step explanation:

90-53=37

180-37=143

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3 years ago

Units of Length Which conversion factor would you use to convert from Meistof 03048 m Customary System Units Metric System Units

melamori03 [73]

Answer:

ight these do be some big number right there

Step-by-step explanation:

3048m+25= 151 * 0.30-167=254

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3 years ago

The quotient of 12 and the opposite of 3 plus the product of the opposite of 14 and 4

Fynjy0 [20]

Putting this into an equation, it would be (12 ÷ -3) + - (14 x 4)
-4 + -56 = -60

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3 years ago

Read 2 more answers

CAN SOMEBODY PLEASE HELP MEET

nata0808 [166]

Parallel lines are lines that will never intersect, even if they [continue on forever] (I admit, I'm not entirely sure on that last part, since there might be something different.)
Lines that are not parallel will cross. We say that they will intersect, and we call the point an intersection.
You can think of angles as [a fragment of intersecting lines].
Sorry I couldn't be of much help, but I think there are quite a few possible answers to this haha

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3 years ago