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nordsb [41]
3 years ago
9

I need the answer to 7 please

Mathematics
2 answers:
bija089 [108]3 years ago
6 0

7. a

Given,

Diameter = 16 feet

So, radius = 16 feet/2 = 8 feet

Circumference = 2πr

So, circumference of this circle

= 2πr

= 2 × 3.14 × 8 feet

= 3.14 × 16 feet

= 50.24 feet

b.

Given,

Diameter = 16 feet

So, radius = 16 feet/2 = 8 feet

Area = πr²

So, area of this circle

= 3.14 × (8 feet)²

= 3.14 × 64 feet²

= 200.96 feet²

horrorfan [7]3 years ago
5 0

Answer:

Done

Step-by-step explanation:

Area - 201.06192983

Circumference - 50.2654824574

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Sarah bought 18 boxes of 65 pens at $12 a box. She sold 378 of them at 3 for $1.00 and the rest at 4 for $1.00. Find her total p
KonstantinChe [14]

Answer:

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Step-by-step explanation:

1 box = $12

18 boxes = 12×18 = $216

Total = 18×65 = 1170 pens

Cost price, Cp = $216

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378 = 378/3 = $126

1170-378= 792 pens remaining

4 = $1

792 = 792/4 = $198

Total selling price, sp = 126+198 = $324

Profit = Sp - Cp = 324 - 216 = $108

8 0
3 years ago
Can someone answer this question please (picture)
erik [133]

Answer:

31.5 units^2

Step-by-step explanation:

Rectangle area (RA) = l × w

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RA = 3 × 7

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TA = (7 × 3)/2

TA = 21/2

TA = 10.5

(Triangles are congruent as shown by the lines on each side of the triangle so I can calculate area of both of them together as I just did)

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7 0
3 years ago
What is the output value for the input value of 5?
Tcecarenko [31]
<span>If the relationship is x+4 then
f(5)=5+4
f(5)=9
as an example

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6 0
3 years ago
The mode and median of the data set below have the same value. What is the missing number?
Maru [420]
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5 0
3 years ago
Avery had $25.56 in her wallet. If she bought lunch with dollars from her wallet, how much money did she have in her wallet afte
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Answer:

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Step-by-step explanation:

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3 years ago
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