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Dima020 [189]
3 years ago
9

The central angle of a half circle is 180 degrees. The central angle of a quarter circle is 90 degrees. How many degrees is the

central angle of an eighth of a circle?

Mathematics
1 answer:
velikii [3]3 years ago
7 0
Total circle = 360°
1/2 of circle = 1/2 x 360 = 180°
1/4 of the circle = 1/4 x 360 = 90°

Similarly,
1/8 of the circle = 1/8 x 360 = 45°
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Question 11 (5 points)
KATRIN_1 [288]

Answer:

Yes

Step-by-step explanation:

Substitute the x value in the ordered pair for the x in the equation, or 2, and the y-value (6) in for y. So, 2 + 6 = 8, and this is true. Then do 3(2) - 6 = 0, which is also true.

6 0
3 years ago
Twice the difference of a number and 9 equals 5.
emmasim [6.3K]

Answer:

7

Step-by-step explanation:

if the number is x then you know 2x-9=5

2x=14

x=7

so the number is 7

8 0
3 years ago
Plz answer the following No scams,links or random amswers or ill report​
zvonat [6]

Answer:

f(2) = 12

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Step-by-step explanation:

<u>a)</u>

plug in x as 2

f(x) = 2^2 + 2(2) + 4

f(x) = 4 + 4 + 4

f(x) = 12

<u>b)</u>

replace f(x) with 7

7 = x^2 + 2x + 4

x^2 + 2x - 3 (move 7 to other side)

Factor

ac: -3x^2

b: 2x

split b into 3x, -x

(x^2 -x) + (3x - 3)

    ↓             ↓

  x(x-1)  +  3(x-1)

Factor: (x-1)(x+3) = 0

Solve using Zero Product Property:

x - 1 = 0, x + 3 = 0

x = 1, x = -3

3 0
3 years ago
Rewrite the question in slope-intercept form:<br> 2x-4y-12= -13-2x
madreJ [45]

Answer:

y= x + 1/4

Step-by-step explanation:

did the math and that should be your answer

3 0
3 years ago
At Cindy's birthday each guest will get one-third of a medium sized pizza. There will be 12 people at the party, including Cindy
tiny-mole [99]

Answer: 4 pizzas

Step-by-step explanation:

There are to be 12 people at the party.

Each person is expected to take 1/3 of a pizza.

The total number of pizza needed is therefore:

= No. of people * quantity of pizza

= 12 * 1/3

= 4 pizzas

<em>Note: Answer would be 6 if each guest wanted 1/2 of a pizza. </em>

3 0
3 years ago
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