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
Pavel [41]
2 years ago
9

Solve 2 sin 0 = sin 20 for 0 degree 0 more than or equal 0 more than or equal 180

Mathematics
1 answer:
Tatiana [17]2 years ago
4 0

Step-by-step explanation:

Im use x instead of theta.

2 \sin(x)  =  \sin(2x)

2 \sin(x)  = 2 \sin(x)  \cos(x)

1 =  \cos(x)

x = 0

You might be interested in
What is the value of the expression 8.3 × 104 − 2.5 × 103 − 1.9 × 104 written in scientific notation?
bezimeni [28]
Remark work with the two numbers that are 10^4 first. Then add in the one that goes to 10^3

Method one
You could change these all to integers and then take it back to scientific notation.

 83 000
<u>-19 000</u>
  64 000
<u>-   2 500
</u>  61 500 <u /><<<<<< answer

Method two
Keep the scientific notation.
 8.3 * 10^4
<u>-1.9 * 10^4</u>
 6.4 * 10^4
<u>-  .25*10^4</u>  Note the powers of ten must be the same.
  6.15*10^4 <<<<<<<< answer
<u>
</u>Either method works. 
<u>
</u>You could use your calculator to get the right answer. I'm not sure all calculators retain the scientific notation. Test yours to see what it does. Enter 8.3*10y^x 4 *1 = 
<u>
</u>Your calculator might have x^y or ^ to record powers. You may also have EE and one of your keys.
<u>
</u>See if your calculator returns 8.3*10^4 or if it returns 83000<u>
</u>
4 0
3 years ago
Read 2 more answers
H(t) = 210 - 150<br> How do you find the value of t
hjlf

Answer:

t = -40

Step-by-step explanation:

the value of t is just the answer. Do not let the H confuse you.

210 - 250 = -40

t = -40

4 0
3 years ago
What equation is the inverse of 2(x-2) ^2 =8(7+y)
Delvig [45]

Answer:

- Y=2+√4x+28 -

Step By Step:

Ok so, the original expression is 2(x - 2)² = 8(7 + y).

First you Rewrite the expression as 7 + y = (2/8)*(x-2)² = (1/4)*(x-2)²

So know its; y = (1/4)(x-2)² - 7

To find the inverse, switch x and y, and solve for y.

x = (1/4)(y-2)² - 7

Then you Multiply through by 4

4x = (y-2)² - 28

(y-2)² = 4x + 28

y - 2 = √(4x + 28)

y = 2 +/- √(4x + 28)

5 0
3 years ago
NEED HELP ASAP! TYSM!
Ivahew [28]
1.theoretical is not counting the  results of the experimentssince there are an equal number of red and black and red, the probblity (theoretical) of picking a black one is 1/3
experimental=number of outcomes happened/total number of tests4 times black, 4 tests, so 4/4 or 100%=experimental proablity

2. experimental considered previous trials and theoretical did not

3.  theoretical=(1/4) the trials don't influence each other so1/(4*4)=1/16

3 0
3 years ago
Read 2 more answers
What is the perimeter of the regular hexagon ? <br> 3m
mr Goodwill [35]
If you are trying to ask what the perimeter is for a hexagon that has 3m sides your answer would be 18m
7 0
4 years ago
Other questions:
  • A wall in Marcus's bedroom is 8 2/5 feet high and 18 1/3 feet long. If he paints 1/2 of the wall blue, how many square feet will
    7·1 answer
  • The shortest leg of a right triangle measures 9 centimeters and the hypotenuse measures 3 centimeters more than the longer leg.
    14·2 answers
  • How to write 17.5 as a fraction hurry please
    6·2 answers
  • Maria spends $12 on lottery tickets every week and spends $126 per month on food. On an annual basis,the money spent on lottery
    8·1 answer
  • Miss Richmond bought a block of cheddar cheese. The block weighed 3 1/3 pounds. She cut the block up into 6 equal pieces. What w
    8·1 answer
  • PLZ I NEED THIS FAST
    10·2 answers
  • A piece of furniture has a retail price of $3,200 and is on sale at a 30% discount. how much money will be saved if the piece of
    5·1 answer
  • 11. Macy has a circular pool with a diameter of 18 feet. If she swims around the pool 4 times, find the distance she will travel
    7·1 answer
  • ∠r = <br> plzz help due tm !!
    15·2 answers
  • Dan made $5.38 for a half hour of work. At Dan's current rate of pay, how much would Dan make for 8 hours of work?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!