1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Veronika [31]
3 years ago
12

If cos x = sin(20 + x) ° and 0°

Mathematics
1 answer:
Varvara68 [4.7K]3 years ago
4 0

Answer:

x = 35°

Step-by-step explanation:

The question is as following

cos x = sin(20 + x)°  and  0° < x  < 90°  ,   find X?

==============================================

cos x = sin(20 + x)°

sin and cos are co-functions,

which means that: cos x = cos [90 - (20 + x)]

∴ x = 70 - x

∴ 2x = 70

∴ x = 35°

======================

Note: cos θ = sin ( 90 - θ )

You might be interested in
Can someone please help me with this ?
natulia [17]
13. 1,6

18. -15,12

19. -7, 1/2
4 0
3 years ago
John’s gross pay for the week is $500. He pays 1.45 percent in Medicare tax, 6.2 percent in Social Security tax, 2 percent in st
olchik [2.2K]
Gross pay = 500

deductions :
medicare tax : 0.0145(500) = 7.25
S.S tax : 0.062(500) = 31.00
sales tax : 0.02(500) = 10.00
income tax : 0.2(500) = 100
insurance = 20
total deductions : 7.25 + 31 + 10 + 100 + 20 = 168.25

gross pay - deductions = net pay
500 - 168.25 = net pay
331.75 = net pay <===
7 0
3 years ago
Bro please help like frr please idek how yall good at math but anyways
Anarel [89]

Answer:

92

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
A jewelry maker has 24 jade beads and 30 teak beads.What is the greatest number of necklaces she can make? How many beads of eac
gulaghasi [49]

Jewelery maker has

24 jade beads

30 teak Beads

She has to make necklaces with each necklace having the same number of beads

So we need to find the highest common factor for both 24 and 30

The factors for both numbers are as follows

24 -1,2,3,4,6,8,12,24

30 - 1,2,3,5,6,10,15,30

The highest common factor for both is 6

The greatest number of necklaces she can make is 6

Number of jade beads - 24/6 = 4 jade beads

Number of teak beads - 30/6 = 5 teak beads

So each necklace will have 4 jade beads and 5 teak beads

6 0
3 years ago
Read 2 more answers
Please please please help help help help help!!!!!!!!!!!!!
Feliz [49]

Answer:

15 and 108

Step-by-step explanation:

3*(30-25)=3*5=15

4*(12+15)=4*27=108

5 0
3 years ago
Other questions:
  • Write an equation for the exponential function represented in the table and graph below.
    11·1 answer
  • 343 is 35% of what number
    6·2 answers
  • What is the vertex of the function in #5
    5·1 answer
  • If you draw all of the diagonals from a single vertex of a convex polygon with 8 sides, how many triangles are formed?
    8·1 answer
  • 1. Pia drew a circle with a circumference of C and a diameter of 14 in. Pia knows that , and she wrote the following equation to
    13·2 answers
  • And give explanation 30 pointsA coordinate grid is shown below:
    9·2 answers
  • !
    12·1 answer
  • Ron started a construction company. The net value of the company (in thousands of dollars) ttt months after its creation is mode
    10·2 answers
  • PLEASE HELP MEEEE! PLEASEEEEEEEE
    13·1 answer
  • Find an ordered pair (x,y) that is a solution to the equation. 3x-y=8
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!