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pantera1 [17]
3 years ago
11

Anyone know how to do this ? I suck at these :(

Mathematics
2 answers:
JulijaS [17]3 years ago
5 0
No not really at all
Allisa [31]3 years ago
3 0
No not really :(((((((((((((((((((
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Area and percent . ​
siniylev [52]

Answer:

a. 61.92 in²

b. 21.396 ≈ 21.4%

c. $4.71

Step-by-step explanation:

a. Amount of waste = area of rectangular piece of stock - area of two identical circles cut out

Area of rectangular piece of stock = 24 in × 12 in = 288 in²

Area of the two circles = 2(πr²)

Use 3.14 as π

radius = ½*12 = 6

Area of two circles = 2(3.14*6²) = 226.08 in²

Amount of waste = 288 - 226.08 = 61.92 in²

b. % of the original stock wasted = amount of waste ÷ original stock × 100

= 61.92/288 × 100 = 6,162/288 = 21.396 ≈ 21.4%

c. 288 in² of the piece of stock costs $12.00,

Each cut-out circle of 113.04 in² (226.08/2) will cost = (12*113.04)/288

= 1,356.48/288 = $4.71.

3 0
3 years ago
Plz help don’t understand this question and I got it wrong an i have to redo it
Paladinen [302]

Answer:

its B

Step-by-step explanation:

7 0
3 years ago
Which value of a in the exponential function below would cause the function to stretch?
shutvik [7]
A would have to be greater than 1 to get a vertical stretch
4 0
3 years ago
Read 2 more answers
1/4z-2/7=5/7 what is z
Alenkasestr [34]

Answer:

z=4

Step-by-step explanation:

1/4z-2/7=5/7

1/4z= 5/7+2/7

1/4z=1

z=4

3 0
3 years ago
Exercise: Evaluate the expressions for a = 2 and b = 6<br> (a + b)2
Vesnalui [34]

Answer:

16

Step-by-step explanation:

Simply plug in 2 for a, then 6 for b and substitute

(2+6)2

Then do order of operations to simplify PEMDAS

First what's inside the parenthesis

(8)2

Then multiply

16.

8 0
3 years ago
Read 2 more answers
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