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
kati45 [8]
3 years ago
8

If sina4/5 find cosa​

Mathematics
1 answer:
DerKrebs [107]3 years ago
4 0

Answer:

cosa = 3/5

Step-by-step explanation:

Use Trignometrical identity cosa =  √ 1 − sin ^2a

cos a =  √ 1 − 16 /25  =  √ 9 /25  =  3 /5

You might be interested in
Let f be a twice-differentiable function for all real numbers x. Which of the following additional properties guarantees that f
Mkey [24]

Answer:

(C) f’(c) = 0 and f”(c) > 0

Step-by-step explanation:

A minimum occurs where the first derivative is 0 (the tangent line is horizontal), and the second derivative is positive (concave up).  The simplest example of this is a positive parabola, like y = x², which has a relative minimum at its vertex.

8 0
2 years ago
Find the slope of the line that passes through the points (–1, 6) and (2, 15)
11111nata11111 [884]

Answer:

m=3

Step-by-step explanation:

\frac{15-6}{2-(-1)} =\frac{9}{3} =3

7 0
3 years ago
-4a <-32 what is the answer
Fiesta28 [93]

Answer:

a > 8

Step-by-step explanation:

Divide by the coefficient of the variable. Since it is negative, the direction of the comparison must be reversed.

(-4a)/(-4) > (-32)/(-4)

a > 8

6 0
3 years ago
FIND THE VOLUME OF THE SPHERE!
Alexxx [7]

Answer:

v= 1.7in

Step-by-step explanation:

3 0
3 years ago
A function g is described below:
mamaluj [8]

Answer:

A≈1075.21

d Diameter

37

d

r

r

r

d

d

C

A

Using the formulas

A=

π

r

2

d=

2

r

Solving forA

A=

1

4

π

d

2

=

1

4

π

37

2

≈

1075.21009

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • Explain how to use grouping symbols to organize information appropriately
    8·2 answers
  • True or false, rotational symmetry is the quality a design has if it maintains all characteristics when it is rotated about a po
    9·2 answers
  • A weather balloon is at an altitude where the temperature is 3º C. The balloon ascends 900 ft with a decrease in temperature of
    9·1 answer
  • F(x) = x2 – 7, and g(x) = 5 – x2 then g(f(-4)) =
    11·1 answer
  • Please help!! I need to know this by today
    6·1 answer
  • Write the factorizations of the exponents below and then compute the exponents below
    9·1 answer
  • Pls help i dont have much time
    6·1 answer
  • Your mother takes you to your grandparents house for dinner. She drives 30 minutes at a constant speed of 40 miles per hour. She
    8·1 answer
  • Question 3 of 10
    9·1 answer
  • Eva bought a book that was on sale for 20% off the retail price. The retail price of the book was $12. What was the price Eva pa
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!