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
alexandr1967 [171]
3 years ago
13

I just need question number 1, asap though, please! I need it by 12pm est

Mathematics
1 answer:
Olin [163]3 years ago
7 0

Answer: tanA=3/4

Step-by-step explanation: If  cosA=4/5 then

sinA=√(1−cos2A)  {Because sin^2A+cos^2A=1}

=>sinA=√(1−16/25)

=>sinA=√(9/25)

=>sinA=3/5

Now as  tanA=sinA/cosA

=>tanA=3/5×5/4  {Because 1/cosA=5/4}

=>tanA=3/4

You might be interested in
your gas bill went up from $125 per month to $150 per month. what is the percent increase of your gas bill?
aalyn [17]

Answer: $25

Step-by-step explanation: what you need to do is take $150 and take $125 dollars away you will get $25!

7 0
3 years ago
Read 2 more answers
Given: -1/2x>6. Choose the solution set
Step2247 [10]

Answer:

B

Step-by-step explanation:

multiply both sides by 2 to eliminate the fraction

- x > 12

multiply both sides by - 1

Remembering to reverse the inequality symbol as a consequence

x < - 12 ← reverse symbol

⇒ { x | x ∈ R, x < - 12 } → B


5 0
3 years ago
Read 2 more answers
Andy randomly selects an outfit to go to school. He can choose from 4 shirts: blue stripes, red stripes, black or white stripes.
denpristay [2]

Answer:

B and D

Step-by-step explanation:

The probability that Andy chooses a striped shirt and a pair of blue shorts is:

\frac{3}{4} * \frac{1}{3} = \frac{3}{12} = \frac{1}{4}

The probability that Andy chooses a striped shirt and pair of tan or plaid shorts is:

\frac{3}{4} * (\frac{1}{3} + \frac{1}{3}) = \frac{6}{12} = \frac{1}{2}

5 0
3 years ago
What is the exact volume of the cylinder? ​
irina [24]

Answer:

15 is the volume of it

Step-by-step explanation:

hope I helped

4 0
3 years ago
Find the area of a circle with a circumference of 12.56 units
vagabundo [1.1K]

Answer:

a = 157.7536pi

Step-by-step explanation:

area = pi*circumference²

a = pi*12.56² = 157.7536*pi

however, if pi just equals 3.14:

probably around 495.346304

6 0
3 years ago
Read 2 more answers
Other questions:
  • How to write 94 million, 237 thousand , 108 in standard form
    5·2 answers
  • Explain how you could use mental math to find a 15% tip for a $26 restaurant bill.
    9·1 answer
  • PLEASE ANSWER QUICK 15 POINTS The dimensions of a triangular prism are shown in the diagram. What is the volume of the triangula
    9·1 answer
  • Find the unknown length in the right triangle. If​ necessary, approximate the length to the nearest thousandth. A: 13in and B: 2
    14·2 answers
  • Is this a linear f(x)= 7x^2+4
    15·1 answer
  • What is the answer to 2+b=7
    8·1 answer
  • The expression below can be used to find the surface area of a cube when given the length of an edge, a.
    8·2 answers
  • A solution to the inequality 3.75 – 3x ≤ 6.
    14·2 answers
  • Someone Help plz!!!!!!
    8·1 answer
  • Sylvie and Bono hiked to the 6,288-ft summit of Mount Washington, then hiked to Carter Notch Hut for the night. Carter Notch Hut
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!