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Black_prince [1.1K]
3 years ago
13

Using small pieces of construction paper, Sara makes a collage in the shape of a circle for art class. The diameter of the colla

ge is 8
inches. What is the area of the collage?
Mathematics
1 answer:
Rudiy273 years ago
6 0
  • Diameter=d=8in

.We know

\\ \sf\longmapsto Area=\dfrac{πd^2}{4}

\\ \sf\longmapsto Area=\dfrac{3.14(8)^2}{4}

\\ \sf\longmapsto Area=\dfrac{3.14(64)}{4}

\\ \sf\longmapsto Area=3.14(16)

\\ \sf\longmapsto Area=50.24m^2

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xz_007 [3.2K]

Answer:

B.

Step-by-step explanation:

Took the test :}

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3 years ago
Find the value of r so the line passes through each pair of points has the give slopes
Art [367]

Answer:

r=64

Step-by-step explanation:

First, let's start with what we have. If we use y=mx+b here's what we can put in:

y=-4x+b

Then we can use one of the given points to find the y-intercept. Since the only complete one is (12,10), we'll use that.

10=-4(12)+b\\10=-48+b\\58=b

So now we have y=-4x+58.

Now we can use our other point with the missing y-value and solve for y.

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7 0
2 years ago
(1 point) A tank contains 2640 L of pure water. A solution that contains 0.09 kg of sugar per liter enters the tank at the rate
OverLord2011 [107]

Answer:

t=0      Sugar = 0 Kg

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Step-by-step explanation:

Data

Tank = 2640 L (pure water)

Sol=0.09kg Sugar per liter

Vin = Vout = 3L/min

Sugar in the beginning = ?

if beginning is t = 0min Amount of sugar = 0, this is due to the fact that at the moment of entering the tank the content is only water , but if beginning is t= 1min then;

\frac{3L}{min}*\frac{0.09Kg}{L}=0.27kg/min

7 0
3 years ago
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Step-by-step explanation:

6 0
2 years ago
Please help with these questions for alot of points and brainiest
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5. To figure this out you must find when y = 0

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B

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6 0
3 years ago
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