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Ganezh [65]
3 years ago
9

Evaluate exactly in radians: arctan(1/sqrt(3)). Show solution w/ explanation.

Mathematics
1 answer:
balandron [24]3 years ago
5 0
Arc tan ( 1/√3 ) = arc tan ( √3/3 ) = 30°
180° = π ( in radians )
30° = 180°/6  = π/6 
 
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8 0
2 years ago
Multi step problems what is -10(10+b)=5(3b+5)
Alla [95]

Answer:

b= -5

Step-by-step explanation:

-10(10+b)=5(3b+5)

Distribute

-100 -10b = 15b +25

Add 10b to each side

-100-10b+10b = 15b+10b +25

-100 = 25b+25

Subtract 25 from each side

-100-25 = 25b+25-25

-125 = 25b

Divide by 25

-125/25 =25b/25

-5 =b

5 0
2 years ago
Mrs. Potter divides the Grade 8 class of 21 students into few equal groups. The number of
Yuri [45]

Answer:

Step-by-step explanation:

list of prime numbers from 1-21

2,3,5,7,11,13,17,19

he has 21 students

the only numbers he can divide by is 3 and 7

21/3=7

21/7=3

7 0
2 years ago
(x=1)^2-4x=(x-1)^2 simplify and answer
Dennis_Churaev [7]

Step-by-step explanation:

Firstly, there's a typing error at (x=1)². I assume it is (x-1)². If my assumption is correct,then:

x²-2x+1-4x=x²-2x+1

x²-6x+1-x²+2x-1=0

-4x=0

x=0

5 0
2 years ago
Roberta has $50 in her purse. The money she has left over after buying two boxes of cookies is given by the equation 50 − x = 38
const2013 [10]

Answer:

The cookies cost $6 each, and $12 altogether.

Step-by-step explanation:

50-38=12, or x

3 0
2 years ago
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