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
gladu [14]
2 years ago
8

#45 How many solutions exist for the equation (cos^2x/x)-(1/5)=0

Mathematics
2 answers:
marissa [1.9K]2 years ago
7 0

45. A graphing calculator shows there to be 3 solutions. (There is no algebraic way to find them.)

_____

Rewriting the equation to

... f(x) = cos(x)² -x/5

We note sign changes in this function between 0 and π/2, between π/2 and π, and between π and 3π/2. Outside the range 0 to 3π/2, there are no more sign changes, hence no more solutions.

inn [45]2 years ago
4 0

check the picture below.


notice, you're asked to use a graphing calculator to get them.

You might be interested in
Find the area of the figure. (Sides meet at right angles.)
Pie

Answer:

60 cm

Step-by-step explanation:

there's alot of ways you can split up the shape but

15x2=30

5x3=15

5x3=15

30+15+15=60

3 0
2 years ago
Read 2 more answers
The diameter of a basketball rim is 18 inches. A standard basketball has a circumference of 30 inches. What is the distance betw
Romashka-Z-Leto [24]

Diameter of the basketball rim = 18 inches

Circumference of the standard basketball = 30 inches

Area of circle = π r²  

Basketball rim = 3.14 * (18/2)² = 3.14 * 9² = 3.14 * 81 = 254.34 in²

Circumference of a circle = 2 π r

30 = 2 * 3.14 * r

r = 30 / (2*3.14) = 30 / 6.28 = 4.78 inches

Standard basketball = 3.14 * (4.78)² = 3.14 * 22.85 = 71.75 in²

254.34 - 71.75 = 182.59 in²

7 0
3 years ago
Read 2 more answers
How many simple random samples of size 3 can be selected from a population of size 6?
ale4655 [162]
This  would be  6C3

= 6*5*4
----------  =  20 answer
  3*2*1
6 0
3 years ago
Answer this please i am stuck
Fiesta28 [93]

Answer:

adasdasdadsads

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
How do you draw a skew line?
Bas_tet [7]
In three-dimensional geometry, skew lines are two lines that do not intersect and are not parallel. A simple example of a pair of skew lines is the pair of lines through opposite edges of a regular tetrahedron. Two lines that both lie in the same plane must either cross each other or be parallel, so skew lines can exist only in three or more dimensions. Two lines are skew if and only if they are not coplanar. Hope this helps!! :)
5 0
3 years ago
Other questions:
  • Elliot got some new trading cards.He has 4 packs with 20 cards each. Another pack has only 8 cards which equation show a way to
    15·2 answers
  • Leah is studying a bacteria sample that increases 4 times in mass every day. At the end of day 1 of her study, the sample has a
    13·2 answers
  • Nicole ordered a volleyball for $9.75
    6·2 answers
  • Need help fast! need the value of x and please show the work!
    11·1 answer
  • Which expressions will help you find the areas of the rectangular faces? Select all that apply.
    15·1 answer
  • There are five different colored cards in a hat (red blue green yellow and black) a card is randomly drawn and replaced then a s
    13·1 answer
  • How many edges does the following shape have?
    6·1 answer
  • There are 5,280feet in a mile. Factoid of the day: The longest wedding veil was 63.5 football fields. About how many miles is th
    7·1 answer
  • it taken 12 days for 10 men assemble a machine how long could it take for 15 men to assemble the machine?​
    8·1 answer
  • Please help quick! last question on my hw.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!