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Tanzania [10]
3 years ago
9

Find the exact area of the sector of the circle with the given radius and central angle.

Mathematics
1 answer:
icang [17]3 years ago
4 0
Area  of sector  = (1/2) * r^2 * α    where α = the angle in radians

= 1/2  * 12^2 * π/3

= 72 π / 3  = 24 π  Answer
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If x = 14 cm, y = 7 cm, and z = 8 cm, what is the surface area of the figure?
Nat2105 [25]

Formula for sufrace area of rectangular prisms: S= 2 (lw + lh + wh)

for the first prism, x=14, plug 14 into 2(x)--> 2(14)=28

7,8,28

S= 2 [7(8)+7(28)+8(28)]

S= 2 (28+196+224)

S= 2(448)

S= 896

for the second prism, x is just 14

7,8,14

S= 2 [7(8)+7(14)+8(14)]

S= 2 (28+98+112)

S= 2(238)

S= 476

Add the two sufrace areas we found and the answer will be

D) S= 1,372

8 0
2 years ago
Use the given endpoint R and the midpoint M of segment RS to find the coordinates of the other endpoint S. (Hint: Use the midpoi
zimovet [89]

Using the given endpoint R  (8,0)and the midpoint M (4,-5) , the other endpoint S is (0,-10)

Explanation :

Use the given endpoint R and the midpoint M of segment RS

R (8, 0 ) and M (4, -5 )

Let 'S' be (x2,y2)

Apply the midpoint formula

(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2} )\\

Endpoint R is (x1,y1) that is (8,0)

Substitute the values and make it equal to M(4,-5)

(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2} )\\\\(\frac{8+x_2}{2},\frac{0+y_2}{2} )=(4,-5)\\\\\frac{8+x_2}{2}=4\\8+x_2=8\\x_2=8-8=0\\x_2=0\\\\\\\frac{0+y_2}{2} =-5\\y_2=-10

So other endpoint S is (0,-10)

Learn more : brainly.com/question/16829448

8 0
3 years ago
Denis let go of a penny at the top of a well and the penny fell straight down to the bottom of the well the top of the well was
Furkat [3]

Answer:

The distance between the top of the well and the bottom of the well was 12 1/2

Step-by-step explanation:

(a.k.a B) i did it and got it right :)

8 0
3 years ago
Describe the expression using an appropriate term or phrase.
Lena [83]

Answer:

2. the sum of 2 terms

Step-by-step explanation:

It is the sum of 2 terms because in this expression you are simply just adding.

3 0
3 years ago
Which expression is rational? 6.27316543222718… square root of 2 square root of 14. square root of 49
iogann1982 [59]
A rational number<span> is any </span>number that can be expressed as the quotient or fraction. It is also a number that does not repeat and/or go on forever (ex. pi or <span>3.1415926535</span><span>)

Soo, the rational number is 
the √49 

√49 = 7 7 is a rational number, also a whole number as well, how bout that.</span>
8 0
4 years ago
Read 2 more answers
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