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3 years ago

12

A central angle of a circle intercepts an arc of length 18 centimeters. The radius of the circle is 9 centimeters. What is the m

easure of the central angle in radians?

1 answer:

WITCHER [35]3 years ago

5 0

Answer:

.44444444

Step-by-step explanation:

πr²=full circumference

18/π(9)²=x/2π

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Which of the following is a solution to 3x^2 = 36?

aleksklad [387]

Answer:

x = √12

Step-by-step explanation:

Easy:

3x^2 = 36

Cancel out the 3 so it is only x^2; you can do this by dividing each side by 3 which gives you:

x^2 = 12

Square root the entire thing to get rid of the square and you get the answer

x = √12

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3 years ago

Write a multiplication expression without exponents that is equivalent to 3^3

MissTica

Answer:

3 times 9

Step-by-step explanation:

3^3 = 3*3*3 = 27 = 3*9

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3 years ago

The sum of one–half a number and two-thirds the number is equal to twenty-five less than twice the number.

Savatey [412]

Answer: $\frac{1}{2}$ x + $\frac{2}{3}$ x = 2x - 25

Step-by-step explanation:

First, let's analyze the phrase "the sum of one-half and two-thirds the number". This would translate to:

$\frac{1}{2}$ x + $\frac{2}{3}$ x

Then it says the last part of the expression is "twenty five less than twice the number"

2x - 25

Then, equal the two parts of the equation to each other.

$\frac{1}{2}$ x + $\frac{2}{3}$ x = 2x - 25

Hope this helps! :)

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1 year ago

1) work out the size of angle x <br><br> 2) give reasons for your answer

MaRussiya [10]

80 degrees. Angle CBD and angle BFH are corresponding so they are equal. Angles on a straight line add up to 180 degrees. 180-100=80

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3 years ago

PLEASE HELP PLEASE PLEASE

PolarNik [594]

The answer is b y=-2/(x+3)-4

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3 years ago

Read 2 more answers