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
Ksenya-84 [330]
3 years ago
6

Solve 0.7cos(x)-sin(x)=r for x

Mathematics
1 answer:
lianna [129]3 years ago
4 0

Try this solution (see the attachment), note:

1. the word 'ctgx' means 'cotangens x'; 2. this equation has roots not for all the real number 'r', it is shown in the 2-d line of the answer; 3. the answer is marked with red colour.

You might be interested in
For a continuous random variable x, the probability density function f(x) represents
jarptica [38.1K]

Answer:

Option d.

Step-by-step explanation:

we know that

The graph of a continuous probability distribution is a curve. Probability is represented by area under the curve.

The curve is called the probability density function (abbreviated as pdf).

We use the symbol f(x) to represent the curve

therefore

The probability density function f(x) represents . the height of the function at  x.

7 0
3 years ago
What is the volume of a sphere with the radius of 4 inches? use 3.14 for pi
harkovskaia [24]

Answer: 268.1

Step-by-step explanation:

V = (4/3) 3.14 (4) to the power of 3

5 0
3 years ago
One researcher wishes to estimate the mean number of hours that high school students spend watching tv on a weekday. a margin of
PtichkaEL [24]
Margin of error, e = Z*SD/Sqrt (N), where N = Sample population

Assuming a 95% confidence interval and substituting all the values;
At 95% confidence, Z = 1.96

Therefore,
0.23 = 1.96*1.9/Sqrt (N)

Sqrt (N) = 1.96*1.9/0.23

N = (1.96*1.9/0.23)^2 = 262.16 ≈ 263

Minimum sample size required is 263 students.

3 0
3 years ago
Read 2 more answers
HELP!!!! I need help
ahrayia [7]

Answer:

1 Tenths = 10 Hundredths

10.74 - 10.60 = 0.14

0.14 = 14 hundredths

Thus, you need 10 ones, 6 tenths and 14 hundredths to make 10.74.

3 0
2 years ago
What Is the percent equal to 3/10
lianna [129]
30 %
3/10 * 10 = 30/100
30/100= 30%
6 0
3 years ago
Other questions:
  • Find the volume of the cylinder. Use 3.14 for
    11·1 answer
  • Write 5 pounds for $2.49 a unit rate round to the nearest hundredth
    10·1 answer
  • Find the expression:
    14·1 answer
  • Solve and graph the inequality:-12>-k-(3k+4)
    15·1 answer
  • Which of the following equations describe the line shown below? 
    12·1 answer
  • Which ratios are equivalent to 30:20. <br> 40:30, <br> 10:0,<br> 3:2,<br> 6:2.
    12·2 answers
  • Multiply and express your answer in standard form (-2+7i)(3+4i)
    15·1 answer
  • Please help ASAP.. Pythagoras theorem
    14·1 answer
  • Angles A and B together create a 90° angle. ∠A = 4x −10 and ∠B = 2x − 20. Find the angle measures (what will
    15·1 answer
  • Which number do you prefer? 999 or 777
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!