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FromTheMoon [43]
3 years ago
8

A large pizza has a diameter of 14 inches. A medium pizza has a diameter of 10 inches. How much larger is the area of the large

pizza than the area of the medium pizza. Round your answer to the nearest hundredth place. ** Use 3.14
A. 12.56

B. 50.24

C. 75.36

D. 78.50
Mathematics
1 answer:
Arte-miy333 [17]3 years ago
7 0

Answer:

The bigger pizza has a diameter of 14 inches, or a radius of 14 / 2 = 7 inches.

The smaller pizza has a diameter of 12 inches, or a radius of 12 / 2 = 6 inches.

Step-by-step explanation:

The area of a circle is πR2 where R is the radius.

The difference in the size of the pizzas is  

Area of bigger pizza - Area of smaller pizza

= π(7 inches)2 - π(6 inches)2 = = 49π inches2 - 36π inches2 = 13π inches2  

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Assume a fair deck of playing cards. Find the probability of drawing a 10, replacing it and drawing an ace.
cupoosta [38]

Answer:

There are 52 cards in a deck. The total number of outcomes possible when picking 2 cards and replacing them is 52 * 52 = 2704.

There are 4 10s and 4 aces so the total number of successful outcomes = 4 * 4 = 16.

Probability = 16 / 2704 = 1 / 169

6 0
3 years ago
Help me with this question
kaheart [24]
First combine like terms and put the expression in standard form. This expression is now in simplest form and cannot be simplified anymore.
3a + 10ab - 7a^2b - 10ab^2 + 12ab - (-4) + (-a^2b) - 5a
-10ab^2 - 8a^2b -2a + 24ab - (-4)

Hope this helps

5 0
3 years ago
Please help me out I need it done ASAP
Anni [7]
Your answer will be letter b
3 0
3 years ago
Simplify the following expression: '5x - 8 + 3y + 10x - 8y'
monitta

Answer:

-5x-8-11y

Step-by-step

Because you shift 10x to -10x and then 5x-10x = -5x

You leave the -8 the same

You do 3y to -3y and  then do -3y -8y = -11y

Hence altogether you get, -5x -8 -11y

6 0
3 years ago
Tyna simplified the expression 3x^3/12x^-2 to x/4. What was Tyna’s mistake?
Ksenya-84 [330]

We are given expression: \frac{3x^3}{12x^{-2}}.

Tyna simplified the given expression to \frac{x}{4}.

Explanation: In order to simplify \frac{3x^3}{12x^{-2}}, Tyna need to simplify rational expression \frac{3}{12}.

On dividing top and bottom by 3, we get \frac{1}{4}.

Which Tyna got correct.

Now she need to simplify \frac{x^3}{x^{-2}}.

<em>On applying quotient rule of exponents, we need to subtract the exponents of x's.</em>

So, it would be \frac{x^3}{y^-{2}} = x^3-{-2} = x^{3+2} = x^5.

<h3>So, the final answer should be \frac{x^5}{4}.</h3><h3>Therefore, Tyan forgot to add exponent to x.</h3><h3>The exponent of x should be 5.</h3>
4 0
3 years ago
Read 2 more answers
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