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
lara [203]
3 years ago
9

What is the period of the function? y=cos(pi/2)

Mathematics
1 answer:
Bad White [126]3 years ago
4 0

Answer: period=4

Step-by-step explanation: a=1,b=π/2, c=0

to calculate the period of the function,we use 2π/b

therefore,period=2π/π/2

2π×2/π=4.

You might be interested in
Pls help simple stuff
vitfil [10]

Answer: 2) 4x - 8 - 8y

Step-by-step explanation:

if xy=4

then y(x-4)(x+2)                                use foil method with parenthisies to get

y(x²+2x-4x-8)                                  foil again

x²y+2xy-4xy-8y                               plug 4 in for xy

x²y+2(4)-4(4)-8y                               solve what u can

x²y+8-16-8y= x²y-8-8y            

for x²y if you take out the exponent you have an xy and an x so when u plug in 4 you get 4x ending up with a solution of

4x-8-8y

Hope that helped

3 0
3 years ago
a 9 grade math class has 27 students there are twice as many girls in this class as there are boys.write a system of equation th
Leona [35]
If there are x boys, there are 2x girls. boys+girls=27 gives x+2x=27. Solving, 3x=27 or x=9. Since there are 2x girls, there are 2*9=19 girls.
4 0
3 years ago
Help needed ASAP will give BRAINLIEST
Arte-miy333 [17]

Answer

Step-by-step explanation:

because all  you have to do is look at the total after "car".

7 0
3 years ago
Read 2 more answers
The number 5/9 is an example of a
Bond [772]

Answer:

5/9 is an example of rational number.

Step-by-step explanation:

as the definition of rational number is the number in the form of p/q but the value of denominator q should not be equal to 0. Every integer is a rational number.

8 0
3 years ago
Find the x-coordinates of the points where the graph crosses the x-axis:
ruslelena [56]

Answer:

29.  (5,0) and (-7/2,0)

30.  (-1,0) and (5/7,0)

Step-by-step explanation:

29. y=2x² - 3x - 35

      y = (x-5)(2x+7)

y is 0 at x = 5 and -(7/2)

31: y=-7x² - 2x + 5

    y =  -(x+1)(7x-5)

y is 0 at -1 and 5/7

See the attached graph.

3 0
2 years ago
Other questions:
  • A rectangular paperboard measuring 20in long and 16in wide has a semicircle cut out of it, as shown below.Find the area of the p
    9·1 answer
  • Can someone help me?
    6·1 answer
  • Help me please and fast need it done by tonight
    10·1 answer
  • Yvonne made 2 3/4 quarts of punch. Write 2 3/4 as a decimal
    7·2 answers
  • Which of the following describes a continuous variable?
    10·1 answer
  • ⅓(2x-4)+5=-⅔(x+1)<br><br><br>HALP
    7·1 answer
  • What property is shown below <br> if q=r and r=s, then q=s
    11·2 answers
  • Solve for X ( 9th grade Algebra 1)
    14·2 answers
  • I REALLY NEED HELP PLEASEE!!!
    6·2 answers
  • I need help with this practice problem It’s from my trig prep guide
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!