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adoni [48]
3 years ago
12

How many terms are in the algebraic expression 2y + 3x - 5x2 - 9?

Mathematics
1 answer:
saveliy_v [14]3 years ago
3 0
In this expression, there are 4 terms.
(The terms are: 2y,3x,5×2,9)
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What is the area of a pizza with a diameter of 12 inches? Round to the nearest tenth. Use 3.14 for pi.
Flauer [41]

Answer:

\boxed {\boxed {\sf a \approx 113.0 \ in^2}}

Step-by-step explanation:

Assuming this pizza is a circle, we can use this formula for area:

a= \pi r^2

1. Find Radius

We are given the diameter: 12 inches, but the formula uses radius.

The radius is half the diameter, or:

r=\frac{d}{2}

r=\frac{12 \ in}{2}

r= 6 \ in

2. Calculate Area

Substitute the radius (6 inches) in for r. The question also asks us to use 3.14 for pi.

a= (3.14)(6 \ in)^2

Solve the exponent.

  • (6 in)²= 6 in* 6 in= 36 in²

a= (3.14)(36 \ in^2)

Multiply.

a= 113.04 \ in^2

3. Round

The question asks us to round to the nearest tenth.

The 4 in the hundredth place tells us to leave the 0 in the tenth place.

a \approx 113.0 \ in^2

The area of the pizza is about 113.0 square inches.

7 0
3 years ago
100 textbooks increased by 99%
Gala2k [10]
<span>100 textbooks increased by 99%

Do this:

First, make 99% a decimal, to do this, you must divide 99 by 100

you get 0.99

multiply 0.99 by 100

you get 99

then, add 99 to 100 and you get 199

so the total sum is 199!!


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5 0
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Three consecutive integers have a sum of 246. what are the three integers?​
salantis [7]

The numbers you are looking for are 81, 82, 83. Hope this helps! Please mark Brainliest. Thank you v much! :)

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Answer:

x = 30

Step-by-step explanation:

x = 90 - 60 = 30

x = 30

.................................................

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mash [69]
The plant will be 34 millimeters after 8 months and 118 millimeters after 3 years. I solved this using the formula y=10+3x, where you are solving for y. You would replace x with the number of months and then solve.
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3 years ago
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