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
lina2011 [118]
3 years ago
13

PLEASE HELP ASAP!!

Mathematics
1 answer:
alex41 [277]3 years ago
7 0

Step-by-step explanation:

e = 20sin(πt/4 - π/2)

= 20[(sinπt/4)(cosπ/2) - (cosπt/4)(sinπ/2)]

Used sin(x - y) = sinxcosy - cosxsiny.

= 20[0 - cosπt/4]

Since cosπ/2 = 0 and sinπ/2 = 1.

= -20cosπt/4.

You might be interested in
If 5= 5+2x then 12x= ? I’m
julsineya [31]

Answer:

12x = 0

Step-by-step explanation:

5= 5+2x

Subtract 5 from each side

5-5= 5-5+2x

0 = 2x

Multiply each side by 6

0*6 = 2x*6

0 = 12x

7 0
3 years ago
Read 2 more answers
What plus what equals 160
Paladinen [302]
80 plus 80 is equal to 160. It's like 8 plus 8 equals 16, just add a zero to the end to each numbers it's easier to think that way
3 0
4 years ago
six candidates are running for two diffrent class offices. in how many ways can the offices be filled with these candidates​
Bond [772]

Answer:

3

Step-by-step explanation:

on edg2020

4 0
2 years ago
If you have 80 employees and you grow 116%, what was the amount of original employees?
Ganezh [65]

。☆✼★ ━━━━━━━━━━━━━━  ☾

Find the multiplier by diving the percentage by 100

116/100 = 1.16

Divide the number of employees by this:

80/1.16 = 68.9655...

There would be 68 employees.

Have A Nice Day ❤  

Stay Brainly! ヅ  

- Ally ✧  

。☆✼★ ━━━━━━━━━━━━━━  ☾

5 0
3 years ago
Simplify (–9k3 + 12k2 + 9) – (10k3 + 3k2 + 4k – 8)
Goshia [24]

Answer:

-43K+17

Step-by-step explanation:

(–9k3 + 12k2 + 9) – (10k3 + 3k2 + 4k – 8)

-9.3=-27                        10.3=30

12.2=24                         3.2=6

                                     

=(-27k+24k+9) - (30k+6k+4k-8)

COLLECT LIKE TERMS

=(-3k+9) - (40K-8)

= -3k+9-40k+8

= -43k+17

8 0
3 years ago
Read 2 more answers
Other questions:
  • Please answer correctly !!!! Will mark brainliest !!!!!!!
    5·1 answer
  • 54 pounds of juicy gummy bears cost $450 how many pounds of bears can you get for $50
    13·2 answers
  • Find an exact expression for the orbital period T. Hint: Each planet feels two forces.
    10·1 answer
  • 25x - 20y= -100<br><br> x-intercept:__________<br> y-intercept:__________
    14·1 answer
  • Show 11 x 6 with two different color dots on the array model. Find the product
    5·1 answer
  • L. Calculate the total revenue for each job at each price
    15·1 answer
  • F(v)=6+v^2 how do I solve
    11·1 answer
  • Find the missing value (5,y) and (-3,2) ;m=2
    14·1 answer
  • What equivalent ratio to 5:15?
    5·2 answers
  • Pls help me I have to finish this!!!!!
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!