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
Liono4ka [1.6K]
3 years ago
10

If sinX= 0.9, what is the value of cos X? Round the value to the nearest thousandth.

Mathematics
1 answer:
SSSSS [86.1K]3 years ago
6 0

Answer: sqrt(19)/10

Step-by-step explanation:

sinx=0.9

x=arcsin(0.9)


Insert x for cos(x):

cos(arcsin(0.9)=

Use identify cos(arcsin(x))=\sqrt{1-x^{2} }, so

\sqrt{1-(\frac{9}{10})^{2}} =\sqrt{\frac{19}{100} } =\frac{\sqrt{19}}{10}


Sorry if this is confusing.



You might be interested in
Luis bought two pieces of wax to make candles. One piece weighed 3.49 kg, and the other weighed 4.71 kg. If wax costs $1.80 per
EleoNora [17]

(3.49+4.71)1.80=cost

(8.2)1.80=cost

14.76=cost

Luis spends $14.76 all together  


8 0
3 years ago
Please help me asap with this question
Luden [163]

Answer:

(-2a, -2b)

Step-by-step explanation:

Using the midpoint formula, the coordinates of E are \left(\frac{-3a-a}{2}, \frac{b-5b}{2} \right)=(-2a, -2b).

7 0
1 year ago
A jar contains 18 red marbles 14 green marbels and 20 blue marbles a marble was selected at random the color was recorded and th
muminat

The "relative frequency" is

         (number of times a blue marble came out)
divided by
         (total number of trials before everybody got bored and quit) .

-- The relative frequency of blue was  (20/60)  =  (33 and 1/3) % .
(Even though 38.5% of the marbles in the jar are blue,
they didn't get picked that often.)

-- The relative frequency of green was  (18/60)  =  30 % .
(Even though only 26.9% of the marbles in the jar are green,
they got picked more often than that.)

-- The relative frequency of red was  (22/60)  =  (36 and 2/3) % .
(Even though 42.3% of the marbles in the jar are red,
they didn't get picked that often.)
3 0
3 years ago
How many terms are in
tatyana61 [14]

Answer:

4

Step-by-step explanation:

4 0
3 years ago
I don’t have a question anymore kskskakakalalalakallakakaka
kramer
Ojsjsijdjsndjfjfiowjsbdidhejsnfj
5 0
3 years ago
Read 2 more answers
Other questions:
  • Pls answer you dont have to show work
    6·1 answer
  • Find the quotient and remainder fro 52÷8?
    7·2 answers
  • [x-(3-5i)][x-(3+5i)]
    13·1 answer
  • Where can you put parenthese so that the answer is correct 28-24/4•2=25
    8·2 answers
  • A 26-sided die is rolled 5 times. How many different outcomes are possible?
    13·2 answers
  • A triangle has sides with lengths of 8 kilometers, 12 kilometers, and 13 kilometers. Is it a right triangle?
    15·1 answer
  • If the sum of two angles is 180°,then each is the___of the other​
    12·1 answer
  • Mr. Smith drove for 45 minutes at a speed of 40 km/h. He stopped for 15 minutes for a coffee break and then he drove for 2 hours
    9·1 answer
  • Write the slope intercept form of the equation of the line
    7·1 answer
  • Can someone give the answer to question 2
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!