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ivolga24 [154]
3 years ago
5

Can anyone help me with this algebra problem ?

Mathematics
1 answer:
Ann [662]3 years ago
7 0
The top right one is not a function
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Cindy is baking a 2-layer cake. The top layer has a diameter of 8 inches and the bottom layer has a diameter of 10 inches. What
Alenkinab [10]

The difference in area between the top surfaces of the two cakes is 28.26 inches²

<h3>Area of a circle</h3>
  • area = πr²

where

r = radius

Therefore,

area of top layer = πr²

d = 2r

r = d / 2

r = 8 / 2

r = 4 inches

area of top layer = 3.14 × 4²

area of top layer = 3.14 × 16

area of top layer = 50.24 inches²

area of the bottom layer = πr²

r = 10 / 2 = 5 inches

area of the bottom layer = 3.14 × 5²

area of the bottom layer = 3.14 ×25

area of the bottom layer = 78.5 inches²

Difference in area between the top surfaces of the two cakes can be found as follows:

  • 78.5 - 50.24 = 28.26 inches²

learn more on circle here: brainly.com/question/10264279

5 0
3 years ago
Harry is a builder.
sergij07 [2.7K]

Answer:

£39.95

Step-by-step explanation:

multiply it by £7.99×5

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3 years ago
What's the constant term that completes Y squared +.1y?
mafiozo [28]
According to the information you gave me I believe it is "y", as it complicates it and it's a term? 

If I missed the question please let me know
5 0
3 years ago
Jikki sells a stereo set for $836.00 . His commission on the sale is 8%. How much does he earn?
kolezko [41]

Answer:

He earns a commission of $66.88.

Step-by-step explanation:

8% of the stereo sale price comes out to 0.08($836.00) = $66.88

He earns a commission of $66.88.

5 0
3 years ago
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54% is A _____ beacuase it can be written as a fraction
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It is a percentage because it can be written as a fraction
7 0
3 years ago
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