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3 years ago

The sector of a circle with a 12 inches radius has a central angle measure of 60°.

1 answer:

5 0

The formula used to find the area of a circlular sector - a pie-shaped part of a circle. ... π. 4. 2. ·. 86. 360. = 12.01. What the formulae are doing is taking the area of the whole ... So for example, if thecentral angle was 90°, then the sector would have an area equal to one ... r is the radius of the circleof which the sector is part.

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What Expression is equivalent to -3(2m-1)-n

denis-greek [22]

Answer:

-6m+3-n

Step-by-step explanation:

-3 x 2m = - 6m

-3 x - 1=3

5 0

2 years ago

Three numbers a;b; 9; ... are in geometric sequence. If 1 is subtracted from the first term then

kenny6666 [7]

if a b 9 are in GP

b÷a = 9 ÷ b

b^2 = 9a

if a - 1 b 9 are in AP

2b = a+8

b = a+8÷2

substitute

b is equal to a + 8 by 2 in b square equal to 9 a

(a+8÷2)^2 = 9a

a^2+16a+64 = 36a

a^2 -20a +64 =0

(a-16) (a-4) =0

a= 16 or a=4

when a=16 b= 12

when a=4 b= 6

Value of a and b are given above

6 0

3 years ago

There are many three digit numbers that are each divisible by 7 and also 8 without a remainder.What is the largest of these thre

Semenov [28]

The largest number is 952. I'll tell you why...

7*8=56

------------

56*18=7*8*18=7*8*3*6=1008 (4 digits)

56*17=7*8*17=952 (3 digits)

7 0

2 years ago

Simplify y2+4y–16y+3y2.

nadya68 [22]

Answer:

4y^2-12y

Step-by-step explanation:

y^2+4y-16y+3y^2

=y^2+3y^2+4y-16y

=4y^2+4y-16y

=4y^2-12y

6 0

3 years ago

Gemma recently rode her bicycle to visit her friend who lives 6 miles away. On her way there, her average speed was 16 miles per

DochEvi [55]

first speed --- x mph

return speed -- x+16 mph

6/x + 6/(x+16) = 1

times each term by x(x+16)

6(x+16) + 6x = x(x+16)

x^2 + 4x - 96 = 0

(x-8)(x+12) = 0

x = 8 or x is a negative

her first speed was 8 mph

her return speed was 24 mph

check:

6/8 + 6/24 = 1 , that's good!

8 0

2 years ago