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mr_godi [17]
2 years ago
12

What is the area of a circle with a Radius of 4 and a Diameter of 2? (Its on Khan)

Mathematics
1 answer:
algol132 years ago
7 0

Answer:4^2≈50.26548

Step-by-step explanation:

   πr2.

   Where r is the radius and π≈3.14 , the ratio of a circle's circumference to    its diameter.

   Plugging in 4 from the radius, we get.

   42π

   ⇒16π inches.

   This is our exact answer. Alternatively, we can plug in 3.14 for π to get.

   50.26 inches.

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Need Help with this question
Fantom [35]
82
The sum of the three angles is 180. One is given and the other we can figure out because it forms a straight line (180) with the angle to the left outside. The outside angle is 117, so 180-117 is 63.
So then add up the 3 angles in the triangle
63+35+y=180
y= 82
3 0
2 years ago
What is the equation of the line that passes through the point (–2,7) and has a slope of zero?
scZoUnD [109]

Answer:

y = 7

Step-by-step explanation:

Given:

x1 = -2

y1 = 7

slope (m) = 0

y - y1 = m ( x - x1 )

y - 7 = 0 ( x - (-2) )

y - 7 = 0 ( x + 2 )

y - 7 = 0

y = 7

4 0
2 years ago
What is the value of x?<br><br>enter your answer in the box<br><br>X__​
vfiekz [6]
<h3>Answer: x = 5</h3>

=====================

Work Shown:

Angle Bisector Theorem

9/(2x-1) = 15/3x

9*3x = 15(2x-1) ... cross multiply

27x = 30x-15

27-30x = 30x-15-30x ... subtract 30x from both sides

-3x = -15

-3x/(-3) = -15/(-3) .... divide both sides by -3

x = 5

6 0
3 years ago
What is the following product? Sqr5x^8y^2 sqr10x^3 sqr12y
PSYCHO15rus [73]

Step-by-step explanation:

\sqrt{5 {x}^{8} {y}^{2}  }  \times  \sqrt{10 {x}^{3} } \times  \sqrt{12y}   \\  \\  =   {x}^{4} y \sqrt{5}  \times x \sqrt{10x}  \times 2 \sqrt{3y}  \\  \\  = 2 {x}^{5} y \sqrt{5 \times 10x \times 3y}  \\  \\  =  2 {x}^{5} y \sqrt{5 \times 5 \times 2x \times 3y}  \\  \\ =  2 {x}^{5} y  \times 5\sqrt{ 2x \times 3y}   \\  \\  = 10 {x}^{5} y \sqrt{6xy}  \\

4 0
3 years ago
Douglas is inviting some friends to his birthday party, and
mote1985 [20]

Answer:

$91/$15=x

Step-by-step explanation:

$100-$9=$91 and 91÷15= 6. omething which means only 6 pizza can be purchased.

The answer up above just says 91 divided by 15 gives you the amount of pizzas. He can only buy 6 pizzas with a pound remainding

8 0
2 years ago
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