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tester [92]
4 years ago
12

Marcy is making a hooked circle-shaped rug for her mother. The circumference of the circle-shaped rug is 69.08 inches.

Mathematics
2 answers:
alekssr [168]4 years ago
5 0
C=2pir
a=pir^2
69.08=c=2pir
divide both sides by 2
34.54=pir
divide both sides by pi
34.54/pi=r
sub that

a=pir^2
a=pi(34.54/pi)^2
a=(34.54^2)/pi
a=(34.54)/3.14
a=379.94

area of rug is 379.94 square inches
DochEvi [55]4 years ago
4 0
<span>The answer to your question would be </span><span>216.9112</span>.
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Full working out please ^^ for the first question , ty
sp2606 [1]

Answer:

E

Step-by-step explanation:

Given

y = 2x² - kx + 3

with a = 2, b = - k and c = 3

Since the curve touches the x- axis at one place then the roots are real and equal and the discriminant for this condition is

b² - 4ac = 0, that is

(- k)² - (4 × 2 × 3) = 0

k² - 24 = 0 ( add 24 to both sides )

k² = 24 ( take the square root of both sides )

k = ± \sqrt{24} = ± 2\sqrt{6}

k = 2\sqrt{6} or k = - 2\sqrt{6} → E

7 0
4 years ago
What is the surface area of the rectangular prism
anastassius [24]

340 you were right

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Find the value of x from this adjoining figure
Fiesta28 [93]

Answer:

x=15^\circ

Step-by-step explanation:

Please refer to the attached figure for labeling of given diagram:

We are given the following angles:

\angle AOC = 3x^\circ\\\angle BOD = 2x^\circ\\\angle EOF = 7x^\circ

Angles opposite to each other when they are formed by crossing of two lines are known as vertically opposite angles. And vertically opposite angles are always equal to each other.

Using property of vertically opposite angles:

\angle EOF = \angle AOB = 7x^\circ

Line CD is a straight line, so \angle COD = 180^\circ

Also,

\angle COD = \angle COA+\angle AOB+\angle BOD = 180^\circ\\\Rightarrow 3x + 7x + 2x=180^\circ\\\Rightarrow 12x =180^\circ\\\Rightarrow x = \dfrac{180}{12}\\\Rightarrow x = 15^\circ

Hence, <em>answer</em> is x = 15^\circ.

5 0
3 years ago
You have 19 digs for your current volleyball season. There are 5 games left in the season. You want to break your previous recor
Eduardwww [97]

Answer:

x > 7

Step-by-step explanation:

6 0
3 years ago
A serving of rice is 1/3 of a cup. How many servings are there in a 2 1/3-cup bag of rice?
iogann1982 [59]

Answer:

7

Step-by-step explanation:

each cup is 1/3 so divide 2 1/3 by 1/3 to get 7 cups

hope this helps

6 0
3 years ago
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