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
taurus [48]
3 years ago
5

Given sin A=-√3/2 and tan A >0, find cos A. PLEASE HURRY AND SHOW WORK

Mathematics
1 answer:
shutvik [7]3 years ago
4 0

Answer:

Below in bold.

Step-by-step explanation:

We have a right triangle here with the hypotenuse = 2 and the legs are 1 and √3.

If tan A > 0 then the opposite side to < A  in the triangle is greater than the adjacent so the leg opposite angle A is √3 and the adjacent side = 1.

So cos A = adj/hyp = 1/2.

You might be interested in
Determine the value of z for the system of equations.
Natali5045456 [20]

Answer:

{x, y, z} = {-4, 2, 4}

<u>i think this is the answer</u>

7 0
3 years ago
Solve x2 – 10x + 25 = 35 for x.
Galina-37 [17]

x^2-10x+25=35\\\\x^2-2\cdot5\cdot x + 5^2=35\ \ \ |\text{use:}\ (a-b)^2=a^2-2ab+b^2\\\\(x-5)^2=35\to x-5=\pm\sqrt{35}\ \ \ |+5\\\\\boxed{x=5-\sqrt{35}\ \vee\ x=5+\sqrt{35}}


\text{other method}\\\\x^2-10x+25=35\\\\x^2-5x-5x+25=35\\\\x(x-5)-5(x-5)=35\\\\(x-5)(x-5)=35\\\\(x-5)^2=35\\.....

3 0
3 years ago
Lauren bought 20 ounces of sliced ham. She used 3/4 of the ham to make sandwiches for her friends and 1/5 of the ham in an omele
NeX [460]
4 ounces are left because 3/4 of 20 is 5. And 1/5 of 5 is 4. I hope this helps
6 0
3 years ago
The number of milligrams Dh of a drug in a patient's bloodstream h hours after the drug is injected is modeled by the following
hodyreva [135]

We assume you intend

D(h)=35e^{-0.15h}

You want to evaluate this function for h=0 and h=8.

D(0)=35e^{0}=35\\D(8)=35e^{-0.15\cdot 8}\approx 10.54

The amount injected was 35 milligrams; 8 hours later 10.54 milligrams remained.

4 0
2 years ago
The product of two integers is 72. One number is two less than five times the other. Which of the following equations could be u
melisa1 [442]
Let the 2 integers be x and y.

Their product is 72, so we write: xy=72. (I)

One of them, say y, is 2 less than 5 times the other. We can write this as the equation:
                               y=5x-2. (II)

To find one of numbers, say x, we can substitute y with 5x-2, in the first equation:

xy=72,

x(5x-2)=72,

expanding the left hand side expression we get:

5x^2-2x=72.


Answer: C
8 0
3 years ago
Other questions:
  • What is the product of 8 and 54
    7·1 answer
  • Select the equation of the line that passes through the point (5, 7) and is perpendicular to the line x = 4.
    13·2 answers
  • What is the area of the triangle?
    5·2 answers
  • Show that f(x)=(x-2)^3+8 is one to one algebraically
    15·1 answer
  • How the greatest common factor of the numbers 10 and 15 can be used to reduce the fraction 10/15
    8·1 answer
  • What is the lcd of 10/11,29/44
    15·1 answer
  • Explain the translation shown in the picture below
    15·1 answer
  • Can anyone help me with this math promblem???? Thanks in advance.....If h = 13 units and r = 5 units, then what is the approxima
    12·1 answer
  • <img src="https://tex.z-dn.net/?f=%20%28-%20%20%5Cfrac%7B%20%7B1%7D%5E%7B2%7D%20%7D%7B3%7D%20%29%20%2B%20%20%5Cfrac%7B5%7D%7B6%7
    12·1 answer
  • Yeet............................
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!