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3 years ago

Find the length of an arc of 40° in a circle with an 8 inch radius.

2 answers:

7 0

The length of an arc is the fraction of its circumference based on the given intercepted angle. This is given by the equation,
L (arc) = (Angle / 360) x 2πr
Substituting the known values,
L (arc) = (40 / 360) x 2π(8 inch) = 16π/9 inch
Thus, the length of the arc is approximately equal to 5.585 inches.

mario62 [17]3 years ago

7 0

Answer: 8π/9 plz give brainlies.

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Please help lol thank youuuuuuuuuuu

Margarita [4]

Answer:

B) 7/2

Step-by-step explanation:

8 0

3 years ago

Whate is answer of 36-[100÷5{60-32(8÷4-1)}]

svet-max [94.6K]

Answer:

$67\frac{23}{28}$

Step-by-step explanation:

$36-\left[100\div \:560-32\left(8\div \:4-1\right)\right]\\\\100\div \:560-32\left(8\div \:4-1\right)\\\\=100\div \:560-32\cdot \:1\\\\=\frac{100}{560}-32\cdot \:1\\\\=\frac{100}{560}-32\\\\=-\frac{891}{28}\\\\\\=36-\left(-\frac{891}{28}\right)\\\\36-\left(-\frac{891}{28}\right)\\\\=36+\frac{891}{28}\\\\\frac{36\cdot \:28}{28}+\frac{891}{28}\\\\\frac{36\cdot \:28+891}{28}\\\\=\frac{1899}{28}\\\\\\\frac{1899}{28}(1899\div28)=67\frac{23}{28}$

6 0

1 year ago

At a restaurant the ratio of kids meals sold to adult meals sold was 3:9. If there 12 kids meals sold, what is the combined amou

Bess [88]

Have the unknown amount = x
so 3x : 9x
you know how many kids meals were bought is equal to the ratio (3x = 12, so x=4)
you already know how many X's for the adults (9) so just multiply (9x4= 36)
lastly add since you need to find the total meals bought (36+12= 48)

4 0

3 years ago

Read 2 more answers

Amy drops a ball from an initial height of 30 feet above the ground. After how many seconds with a ball reach the ground? Roger

Vitek1552 [10]

Answer:

Option 2. 1.4 seconds

Step-by-step explanation:

As we know when a ball is dropped from a height then we apply the formula

$h=ut+\frac{1}{2}gt^{2}$

Here h = height from the ground

u = initial speed of the ball

t = time taken to reach the ground

g = acceleration due to gravity

Now we put the values of these parameters

h = 30 feet ≅ 9.144 met.

u = 0

g = 9.8 met/sec²

9.144 = 0 + 1/2×9.8×t²

9.144 = 4.9×t²

t² = 9.144÷4.9

t² = 1.87

t = 1.37 ≅ 1.4 seconds

Therefore option 2 is the answer.

4 0

3 years ago

Read 2 more answers

4 avocados cost $0.76 At this rate, how much do 9 avocados cost?

lozanna [386]

Answer:

9 avocados cost $1.71

Step-by-step explanation:

6 0

2 years ago