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Licemer1 [7]
3 years ago
11

An arc of length 8 in. is intersected by a central angle in a circle with a radius of 3 in. What is the measure of the angle? Ro

und your answer to the nearest tenth.
Mathematics
2 answers:
mina [271]3 years ago
5 0
Given:
Arc length = 8 inches
radius = 3 inches
find the measure of the central angle.

Arc length = radius * central angle
central angle = arc length / radius
central angle = 8 inches / 3 inches
central angle = 2.667 (radian)

Central angle in degrees  = 152.88°

Circumference of the circle = 2 * 3.14 * 3 inches = 18.84 inches
1 circle = 360° / 18.84 inches = 19.11° per inch
19.11° per inches * 8 inches of arc length = 152.88°

butalik [34]3 years ago
3 0

The answer is 2.7 radians. C on edgunity

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Dan wants to grow new grass in his yard. The yard is 12 feet by 20 feet. 1 package of grass seed will cover 50 square feet. Dete
ozzi
Find square footage of his yard
assuming is is roughtly a rectangle
area of rectangle=length times width
length=20ft
width=12 ft

area=length times width=20 times 12= 240 square feet

how many packages?
1 pack times x is at least 240
1 pack times x>240
50 times x>240
divide both sides by 50
x>4.8
you can't buy 0.8 pack, so round up
5 packs needed

3 0
3 years ago
Read 2 more answers
Y=4(-1)+3<br> Linear Equations
rewona [7]

Your equation states y = 4(-1) + 3

Since the parentheses touch the number 4 which means you multiply, we will start with that first.

4 × -1 or 4(-1)  (it means the same thing) would be -4

Now let us combine the equation.

y = -4 + 3

The addition property is included now,

-4 + 3 = -1

Therefore, your answer would be y = -1


Hope this helped! :D

7 0
3 years ago
Someone plz help me on number 4 and 5
nexus9112 [7]
I hope that this made sense to you.

number 4 is x = 9 and number 5 is x = 10

3 0
3 years ago
Reflect (3,9) across the y-axis.
Andru [333]

Answer:

(-3,-9)

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Solve: −8x−7/ 3 =11
VladimirAG [237]

Answer: x=-\frac{5}{3}

Step-by-step explanation:

Given the equation -8x-\frac{7}{3}=11, you need find the value of the variable x.

Then, you have to solve for x:

 Add \frac{7}{3} to both sides of the equation.

Divide by -8 to both sides of the equation.

Once you do this proccedure, you will get the value of the variable x.

Then:

-8x-\frac{7}{3}+\frac{7}{3}=11+\frac{7}{3}

-8x=\frac{40}{3}\\\\\frac{-8x}{-8}=\frac{\frac{40}{3}}{-8}\\\\x=-\frac{5}{3}

8 0
4 years ago
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