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
Hoochie [10]
2 years ago
7

Evaluate cos 7pi/8 without a calculator

Mathematics
2 answers:
NISA [10]2 years ago
8 0

Hey there!

7π/8

= 7(3.141593)/8

= 2.748894

3.141593 ≈ 3.14

= 7(3.14)/8

= 21.98/8

= 21.98 ÷ 8

= 2.7475

Answer: 2.748894 WHICH IS APPROXIMATELY 2.7475

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

Olin [163]2 years ago
4 0

Answer: Long answer- 2.748893572

              Short answer- 2.7475

Step-by-step explanation:

Long Answer:

7(3.141592654)/8

Step 1: 7 x 3.141592654= 21.99114858

Step 2: 21.99114858/8= 2.748893572

Short Answer: 7(3.14)/8

Step 1: 7x3.14= 21.98

Step 2: 21.98/8= 2.7475

You might be interested in
What did persian history begin with?
tangare [24]
Persian History began with Medes.
3 0
3 years ago
Find the distance between each pair points (-5,3) , (-4,-5)?
MrRa [10]

Answer:

\sqrt{65}

Step-by-step explanation:

distance between two points:

d=\sqrt{(x_{2}-x_{1})^{2}+( y_{2}-y_{1})^{2}}

we have:

d=\sqrt{(-4-(-5))^{2}+(-5-3)^{2}} \\\\d=\sqrt{1^{2}+(-8)^{2}} \\\\d=\sqrt{65}

4 0
3 years ago
A cube with a side length s can be split into three congruent pyramids which formula represents the volume of a square pyramid
Assoli18 [71]
The volume of a triangular pyramid<span> can be found using the </span>formula<span> V = 1/3AH where A = area of the triangle base, and H = height of the </span>pyramid<span> or the distance from the </span>pyramid's<span> base to the apex.</span>
7 0
3 years ago
From the figure, the cylinder glass has a height of 6 inches and a radius of the mouth of the glass 1.25 inches. Find the length
ahrayia [7]

Answer:

D. 6.5

Step-by-step explanation:

The diameter of the cylinder is 1.25 x 2 = 2.5

SK = √1.25² + 6² = √42.25 = 6.5

8 0
3 years ago
Jamal recorded the daily high temperatures over a two week period
lorasvet [3.4K]

Answer:

A. 4

Step-by-step explanation:

First rearrange the temperatures from low to high

60, 65, 68, 69, 69, 70, 70, 70, 71, 71, 73, 74, 75, 77

There are 14 data,

Q1 = 4th data = 69

Q3 = 11th data = 73

Interquartile range = Q3 - Q1 = 73 - 69 = 4

5 0
2 years ago
Other questions:
  • If y varies directly as x, and y = 25 when x = 5, find y when x = 25.
    9·2 answers
  • $3.60 divided by 3 sisters
    12·2 answers
  • A baseball has a diameter of 6 centimeters. It is filled with a tightly-wound string. How much string does the baseball contain?
    14·2 answers
  • PLEASE HELP ASAP, MARKING BRAINLIEST!!<br><br> Find the value of x.
    6·2 answers
  • Find the equation of a line that passes through (2,9) and is parallel to the graph of y=3x+5 Write the equation in​ slope-interc
    9·1 answer
  • How do you know your GPA base on your grade this year?
    15·1 answer
  • Sabrina rode on a Ferris wheel at the state fair. The radius of the Ferris wheel was 106 feet. What is the approximate distance
    5·1 answer
  • GIVING BRAINIEST!!!!!!!!!!!!!!
    13·1 answer
  • Can yu write a linear equation for this
    7·2 answers
  • The temperatures in five Connecticut cities
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!