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patriot [66]
4 years ago
13

What is 120 degrees in radians?

Mathematics
2 answers:
RideAnS [48]4 years ago
3 0

Answer:

\frac 23 \pi

Step-by-step explanation:

120 degrees is one third of the whole circle, or \frac 13 2\pi

sladkih [1.3K]4 years ago
3 0

Answer:

the answer is 2pi/3

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Multiply (3a + 5)2<br>A9a2 + 30a + 25<br>B 25a2 + 15a + 9<br>C a2 + 3a + 25<br>D 5a2 + 15a + 9​
oksano4ka [1.4K]

Answer:

9 a^2 + 30 a + 25 the anwser is A

Step-by-step explanation:

Expand the following:

(3 a + 5)^2

(3 a + 5) (3 a + 5) = (3 a) (3 a) + (3 a) (5) + (5) (3 a) + (5) (5) = 9 a^2 + 15 a + 15 a + 25 = 9 a^2 + 30 a + 25:

Answer: 9 a^2 + 30 a + 25

4 0
3 years ago
Write an equation for a quadratic function in vertex form with a vertex of (3,1) that has the point
postnew [5]

Answer:

y = (x - 3)² + 1

Step-by-step explanation:

the equation of a quadratic function in vertex form is

y = a(x - h)² + k

where (h, k ) are the coordinates of the vertex and a is a multiplier

here (h, k ) = (3, 1 ) , then

y = a(x - 3)² + 1

to find a substitute (1, 5 ) into the equatiuon

5 = a(1 - 3)² + 1 ( subtract 1 from both sides )

4 = a(- 2)² = 4a ( divide both sides by 4 )

1 = a

then equation of quadratic function is

y = (x - 3)² + 1

7 0
2 years ago
Simplify.
N76 [4]

Answer:

The answer is 60k2+k I hope this helps you!

6 0
3 years ago
An account worth $6,000 is earning 7% simple interest annually. How
Oksana_A [137]
The correct answer is 8400
4 0
3 years ago
The golden ratio is a solution to a quadratic equation.
Crank

Answer:

Below.

Step-by-step explanation:

a.    Φ^2 − Φ − 1 = 0

Φ2 − Φ = 1

(Φ - 0.5)^2 - 0.25 = 1

(Φ - 0.5)^2 = 1.25

Φ - 0.5 = √(1.25)      (We only take the positive root).

Φ  = 0.5 + √(1.25)

b. I used Completing the square.

c.  Φ is irrational That is it cannot be represented as a fraction a/b and because of this it can only be approximated by a decimal.

6 0
3 years ago
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