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
Finger [1]
2 years ago
12

what is f" (pi/4) where f (x) = sin x + cos x ?? Show all your work. Write your final answer in simplest radical form.

Mathematics
1 answer:
Lynna [10]2 years ago
3 0

Answer:

-√2

Step-by-step explanation:

f(x) = sinx + cosx

f'(x) = cosx - sinx

f''(x) = -sinx - cosx

f''(pi/4) = -sin(pi/4) - cos(pi/4) = -√2

You might be interested in
which polynomials are in standard form? A. t^4-1 B. -2t^2+3t+4 C. 4t-7 D. None of The Above Choose all answers that apply
Nikitich [7]

Answer:

B. -2t^2+3t+4

Step-by-step explanation:

The standard form as

ax^2 + bx + c

Option B meets that requirement, even though it has a '-' in front

5 0
3 years ago
What does the a small MAD tell you about a set of data
Tamiku [17]

Answer:

Mean absolute deviation is the average of the absolute deviations from the mean. It is a measure of variability, which gives us an idea about the spread of data points from mean. Therefore, the small MAD means the data points are less deviated from mean. And the large MAD means the data points are more deviated from mean.

Hence, smaller the MAD lesser the variation in data.

3 0
3 years ago
3/4(ad).. solve.. a=12 d=9​
kipiarov [429]

Answer:

hope it helps you see the attachment for further information

5 0
3 years ago
Read 2 more answers
The Oregon Trail is 2,197 miles long. How long would it take a covered wagon traveling 20 miles a day to complete the trip? Hint
ddd [48]

Answer:

109 days and 9 hours

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
How many millilitres are they in two and a quater litres
Bess [88]
Mili means 1000 so 1000ml=1 L (ml=milileter, L=liter)
conversion factor
1L/1000ml=1 and
1000ml/1L=1
convert 2 and 1/4 L to ml
2 and 1/4L
try to convert with second conversion thing (1000ml/1L=1)
2 and 1/4L times 1000ml/1L=2000 and 1000/4 ml=2000 and 250 ml=2250 ml
5 0
3 years ago
Other questions:
  • 12 people can wash 40 cars in 12 days. how many days will it take 4 people to wash 30 cars
    8·1 answer
  • Solve the equation -25(10-x)=25x+250
    10·1 answer
  • Identify any outlier(s) in the data. {52, 61, 42, 46, 50, 51, 49, 44, 40, 66, 53, 67, 45, 64, 60, 69}
    12·1 answer
  • 6x+4y=12 into y=my+b
    13·2 answers
  • John is driving at a constant speed of 40 miles per hour. How long does it take him to travel 50 miles?
    5·2 answers
  • Hi, timed text please help! ​
    9·1 answer
  • Solve the system of equations. If the system does not have one unique solution, determine the number of solutions to the system.
    13·1 answer
  • The mean of five numbers is 8.
    14·1 answer
  • Brainleist please help.
    7·1 answer
  • Draw a line with a slope of -1/2 going through the point (4,5) already graphed for you. At what point does this line cross the y
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!