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
Tema [17]
2 years ago
11

Evaluate the expression. Assume that all the angles are in Quadrant I. (cos (arctan √3/7))

Mathematics
1 answer:
evablogger [386]2 years ago
3 0

Answer:

0.971

Step-by-step explanation:

Given the expression (cos (arctan √3/7)) which all lies in the first quadrant. Note that all the trigonometry identities (sin, cos and tan) are all positive in the first quadrant.

From the expression given

(cos (arctan √3/7)), we need to get the expression in parenthesis first.

Let y = (cos (arctan √3/7))

If u = arctan √3/7

Then y = cos(u) .... 1

Let's get the value of u first

u = arctan √3/7

u = arctan(0.2474)

u = 13.896°

Substituting u = 13.896° into equation 1, we will have;

y = cos(u)

y = cos13.896°

y = 0.971.

Hence the expression (cos(arctan√3/7)) is equivalent to 0.971

You might be interested in
Please help me please​
Vesnalui [34]
X=7. 42/14=3. so x+5 times 3 = 7x-13. do the math, x =7. 7+5=12. 7(7)-13= 36. 12x3=36. boom.
4 0
3 years ago
Read 2 more answers
Look at the graph and tell me why it is proportional or nonproportional and why?
andreyandreev [35.5K]

Answer:

I think it is not proportional because the line is supposed to go thro the middle of each dot, and some of the dots don't have a line thro the middle only on the side or not even on the dot.

Hope this helps!

Step-by-step explanation:

please mark me brainliest...

8 0
2 years ago
if 10 is less than a number is multiplied by 3, the result is equal to 2 times the number. What is the number?
olya-2409 [2.1K]
Hello!

We know that

(x - 10) * 3 = 2x

Distribute the 3

3x - 30 = 2x

Subtract 2x from both sides

x - 30 = 0

Add 30 to both sides

x = 30

The answer is 30

Hope this helps!
4 0
3 years ago
Read 2 more answers
Find the surface area of the cube shown below. A. 66 cm2 B. 121 cm2 C. 726 cm2 D. 1,331 cm2
irina [24]

Answer:

66

Step-by-step explanation:

3 0
1 year ago
Hello all, I have a short time frame to finish and urgently need help on these 2 problems.
HACTEHA [7]

Answer:

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • If 8=10 and 1=7,which describes all the lines that must be parallel?
    11·1 answer
  • Can some1 turn these word sentences to numerical equations?
    9·1 answer
  • Find the surface area of a cylinder with a diameter of 10 and a height of 45. Use 3.14 for pie. Round your answer to the nearest
    5·2 answers
  • Determine which windsurfer is traveling faster. Explain your reasoning.
    14·1 answer
  • You are updating your garage and the only thing left to paint is your garage door. You
    5·1 answer
  • PLEASE HELP ASAP I always give brainliests!
    15·1 answer
  • Molly bought a pair of gloves and a skirt.
    12·1 answer
  • HI CAN I GET SOMEONE TO HELP ME WITH MATH IM FAILING TY! :)
    13·1 answer
  • In Theresa's first 8 basketball games, she scored 7,4,3,6,8,3,1 and 5 points. In her
    5·1 answer
  • 24÷(8-4)×2=<br> A 2<br> B 16<br> C 12<br> D 4
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!