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Marianna [84]
3 years ago
14

a circular railroad crossing sign has a diameter of 30 inches. which measurment is closest to the area of the sign in square inc

hes
Mathematics
1 answer:
TiliK225 [7]3 years ago
8 0
A= pi*radius^2
A= pi*15^2
A= &06.858 inches^2
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What is the value of xin the diagram?<br><br> A. 9<br> B. 8<br> C. 7<br> D. 6
RoseWind [281]

Answer:

7

Step-by-step explanation:

The ratio of the similar triangles is

14       49

---- = ------

2          x

Using cross products

14x = 2*49

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Divide by 14

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7 0
3 years ago
What is the area of the partial circle with a radius of 8 cm? Use 3. 14 for pi.
Olegator [25]
  • Radius=r=8cm

\\ \tt\hookrightarrow Area=\pi r^2

\\ \tt\hookrightarrow Area=\pi 8^2

\\ \tt\hookrightarrow Area=64\pi

\\ \tt\hookrightarrow Area=64(3.14)

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8 0
3 years ago
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Solve.... 4n- 9= 2 (5+ 2n)
timama [110]

Answer:

Step-by-step explanation:

Here you go mate

Use PEMDAS

Parenthesis,Exponent,Multiplication,Division,Addition,Subtraction

Step 1

4n-9=2(5+2n)  Equation/Question

Step 2

4n-9=2(5+2n)  Remove parenthesis

4n-9=4n+10

Step 3

4n-9=4n+10  Subtract 4n to sides

-9=10

Step 4

-9=10  Add 9

0=19

Answer

No solutions

Hope this helps

3 0
3 years ago
Determine which of the following graphs does not represent a function.
levacccp [35]

let's recall the vertical line test, it's a function if when dropping a vertical line on the graph, it only touches it once on the way down.

Check the picture below.

6 0
2 years ago
One third plus one third
ehidna [41]
Two thirds.
1/3 +1/3 = 2/3.
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6 0
4 years ago
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