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
siniylev [52]
3 years ago
7

If f(x) =2x and g(x) = cos(x) then g(f(π/2)) = ? Number 2 in picture

Mathematics
1 answer:
Romashka [77]3 years ago
6 0

Answer:

(4) -1.

Step-by-step explanation:

First evaluate f(π/2) which is 2 * π/2 = π.

So g(f(π/2)) = g(π)

= cos π

= -1.

You might be interested in
Use similar triangles to solve the problem. A flagpole casts a shadow of 35 ft, Nearby, a 9-ft tree casts a shadow of 7 ft. What
grin007 [14]

27.22ft

.,..................

9 x

__ = ___

7 35

9*35= 315

315/7= 27.22ft

5 0
3 years ago
What is the slope of the line through (-1,2) and (-3,2)
Dafna1 [17]

Answer:

0/-2; undefined

Step-by-step explanation:

8 0
3 years ago
Help me please<br> thx so much<br> have a good one
Mademuasel [1]

Answer: y=1/2x-17

Step-by-step explanation:

8 0
3 years ago
(a) Use the definition to find an expression for the area under the curve y = x3 from 0 to 1 as a limit. lim n→∞ n i = 1 Correct
Luba_88 [7]

Splitting up the interval of integration into n subintervals gives the partition

\left[0,\dfrac1n\right],\left[\dfrac1n,\dfrac2n\right],\ldots,\left[\dfrac{n-1}n,1\right]

Each subinterval has length \dfrac{1-0}n=\dfrac1n. The right endpoints of each subinterval follow the sequence

r_i=\dfrac in

with i=1,2,3,\ldots,n. Then the left-endpoint Riemann sum that approximates the definite integral is

\displaystyle\sum_{i=1}^n\frac{{r_i}^3}n

and taking the limit as n\to\infty gives the area exactly. We have

\displaystyle\lim_{n\to\infty}\frac1n\sum_{i=1}^n\left(\frac in\right)^3=\lim_{n\to\infty}\frac{n^2(n+1)^2}{4n^3}=\boxed{\frac14}

6 0
3 years ago
Anna bought 8 tetras and 2 rainbow fish for her aquarium. The rainbow fish cost​ $6 more than the tetras. She paid a total of​ $
____ [38]

Answer:

C, D, and E

Step-by-step explanation:

When trying to solve for the cost of each item you will find a rainbow fish is $8.50 and a tetra is $2.50. If you use that information to solve the other answer choices C, D, and E would be correct

5 0
3 years ago
Read 2 more answers
Other questions:
  • If the number of CD's sold by Daniel's Discs on Day 7 was 25, how would the standard deviation compare to that of the original s
    10·1 answer
  • What is the solution to the system of equations?
    6·1 answer
  • Two hikers hike from a first mountain to a second mountain. The next day, they hike from the second mountain to the hollow. The
    7·1 answer
  • D=rt help solve for r
    6·1 answer
  • Robin rides a personal watercraft 75° west of south at 70 miles/hour. the water current is moving 6 miles/hour at an angle of 75
    14·2 answers
  • Due today! Please help I’m very confused.
    5·1 answer
  • What is the value of 24 - (-6 - (5 + 8))?
    12·1 answer
  • Explain how a yard foot and inch are related
    12·1 answer
  • Hi pls help me thanksss<br>pls provide me with workings thankss :)​
    13·1 answer
  • Simplify 2.67 + (−8.9).
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!