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Setler [38]
3 years ago
9

Find four smallest positive numbers theta such that cosine = 1/2

Mathematics
1 answer:
bagirrra123 [75]3 years ago
3 0
Cos(x)=0.5
x=pi/3
since cos is postive in the fourth quadrant and first quadrant
x=pi/3+2*pi*k where k is an integer
fourth quadrant
x=(-pi/3)+2*pi*k where k is an integer
the first 3 values of K in the first quadrant are
pi/3,7*pi/3,13*pi/3
the first three postive values for the fourth quadrant are
5*pi/3,11*pi/3,19*pi/3

so the smallest three are
pi/3,5*pi/3,7*pi/3,11*pi/3
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a chef uses 4 3/4 cups of broth for 10 servings of soup. How much broth is used in one serving of soup?
mafiozo [28]
Set up a proportion. 4 3/4 cup broth is to 10 servings as x cups broth is to 1 serving soup.

x= amount of broth in one serving

(4 3/4)/10= x/1
cross multiply

(4 3/4)(1)= 10x
convert 4 3/4 to improper fraction

(19/4)(1)= 10x

19/4= 10x
divide both sides by 10

19/4 ÷ 10= x
to divide fractions, multiply by reciprocal of 10

19/4 * 1/10= x
multiply numerators; multiply denominators

(19*1)/(4*10)= x

19/40 cup= x


ANSWER: 19/40 cup in one serving

Hope this helps! :)
4 0
3 years ago
One number is 3 less than a second number. Twice the second number is 14 more than 3 times the first. Find the two numbers
Butoxors [25]

Answer:

Number 1 is 10 and number 2 is 7

14/2 = 7

7 + 3 = 10

8 0
3 years ago
A function g is described below:
mamaluj [8]

Answer:

A≈1075.21

d Diameter

37

d

r

r

r

d

d

C

A

Using the formulas

A=

π

r

2

d=

2

r

Solving forA

A=

1

4

π

d

2

=

1

4

π

37

2

≈

1075.21009

Step-by-step explanation:

5 0
3 years ago
What is the value of the expression below?
garri49 [273]

Answer:

9

Step-by-step explanation:

15 - 7 \times 2 + 2^3 =

Use the correct order of operations, PEMDAS.

= 15 - 14 + 8

= 1 + 8

= 9

8 0
3 years ago
Read 2 more answers
You get a summer job and make a total of $5,500 throughout the summer months. The government takes out taxes from that money at
bonufazy [111]

Answer:

$1650 is the answer hope it helps

8 0
2 years ago
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