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
Simplify completely the quantity 4 times x to the third power plus 5 times x to the 2nd power plus 3 times x all over x. (2 poin
ikadub [295]

Answer:   4x² + 5x + 3

<u>Step-by-step explanation:</u>

\dfrac{4x^3+5x^2+3x}{x}\\\\\\=\dfrac{x(4x^2+5x+3)}{x}\qquad \text{factored out the common term from the numerator}\\\\\\=4x^2+5x+3\qquad \text{canceled out x from numerator and denominator}

8 0
3 years ago
The following are house prices in Southern California:
natali 33 [55]

Answer:

$750,000

Step-by-step explanation:

$750,000 $680,000 $600,000 $880,000 $1,200,000 $760,000 $480,000

Write the prices in increasing order and choose the middle one.

$480,000 $600,000 $680,000 $750,000 $760,000 $880,000 $1,200,000

Answer: $750,000

5 0
3 years ago
X squared minus six x equals negative thirteen
Gelneren [198K]

Answer:

x^2 - 6x = -13

4 0
3 years ago
4 – 15 ÷ (30 – 33) =
cupoosta [38]

Answer: 9

Step-by-step explanation:

    We will use the Order of Operations to solve.

 Given:

4 – 15 ÷ (30 – 33)

 Subtract 33 from 30:

4 – 15 ÷ (– 3)

 Divide -15 by -3:

4 + 5

 Add 4 to 5:

9

7 0
2 years ago
Read 2 more answers
Daisy purchases a gym membership.She pays a signup fee and a monthly fee off 13$.After 4 months, she has paid a total of$69.Use
bulgar [2K]

Answer:

The signup fee is $17

Step-by-step explanation:

we know that

The equation in point slope form is equal to

y-y1=m(x-x1)

where

m is the slope or unit rate of the linear equation

(x1,y1) is a ordered pair of the line

Let

x -----> the number of months

y -----> the total cost of a gym membership

In this problem we have

The slope of unit rate is equal to

m=\$13\ per\ month

The ordered pair is

(x1,y1)=(4,69)

substitute

y-69=13(x-4) ----> equation in point slope form

Convert to slope intercept form

y-69=13x-52

y=13x-52+69

y=13x+17 ---> equation in slope intercept form

The y-intercept is the signup fee (value of y when the value of x is equal to zero)

therefore

The signup fee is $17

4 0
3 years ago
Other questions:
  • The length of segment XY is 9 cm. Which statements regarding triangle XYZ are correct? Check all that apply.
    11·2 answers
  • 12.48 ÷ 7.6<br><img src="https://tex.z-dn.net/?f=12.48%20%5Cdiv%207.6%20" id="TexFormula1" title="12.48 \div 7.6 " alt="12.48 \d
    11·2 answers
  • Destiny and Alicia both leave the coffee shop at the same time, but in opposite directions. If Alicia travels 4 mph faster than
    8·1 answer
  • Which is a factor of 2x^2- 12x- 14
    7·1 answer
  • A circle has a diameter of 28 units What is the area of the circle to the nearest hundredth
    5·1 answer
  • Max wants to buy shirts that cost $8 each. He also wants to buy a pair of sneakers for $39. A. Write an inequality that represen
    8·1 answer
  • Rewrite 65% as a decimal number.
    5·1 answer
  • Someone help me plz !!!!!
    10·1 answer
  • HELPPPPPPPPPPP PLSS :P
    7·1 answer
  • Thirty children from an after-school club went to the matinee. This is 20% of the children in the club. How many children are in
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!