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
wolverine [178]
2 years ago
7

Need help solving this problem please ​

Mathematics
1 answer:
iVinArrow [24]2 years ago
7 0

Step-by-step explanation:

\cos(  \frac{ \alpha }{2}  )  =  \sqrt{ \frac{1 -  \cos( \alpha ) }{2} }  \\  =  \sqrt{ \frac{1 - ( -  \frac{15}{17}) }{2} }  \\  =  \sqrt{ \frac{32}{34} }

You might be interested in
I need geometry help...
Amiraneli [1.4K]
Sin(h) = 8/17
Hope this helps

6 0
3 years ago
Find the equation of a parallel to y+2=-1/2x that passes through the point (-2,2)
FromTheMoon [43]

Answer:

y = - 1/2x + 1

Step-by-step explanation:

y+2= - 1/2x

Slope = -1/2

Point: (-2,2)

y-Intercept: 2 - (-1/2)(-2) = 2 - 1 = 1

4 0
2 years ago
The difference between two numbers is 7. The sum of twice the larger number and three times the smaller number is 19.
Alex17521 [72]

Answer:

x= 8   y= 1

Step-by-step explanation:

First, you identify your variables:

x= larger number

y= smaller number

Second, you find your equations:

x - y = 7

2x + 3y = 19

Third, (I used the substitution method) you make "y" by itself for the 1st equation.

y = x - 7

2x + 3y = 19

Then, you plug in the 1st equation for "y" in the 2nd equation

2x + 3(x - 7) = 19

Then, you distribute and simplify.

2x + 3x - 21 = 19

5x - 21 = 19

5x = 40

x = 8

Finally, you plug in the variable you found ( x ) into one of the equations and solve,

8 - y = 7

- y = -1

y = 1

6 0
2 years ago
Which undefined term is used to define an angle ?
9966 [12]

the answer will be point

8 0
3 years ago
Read 2 more answers
Last Tuesday​, a parking lot had 80 cars. Of those 80 ​cars, 40​% were tan​, 20 were silver​, and the rest were black. What perc
stepladder [879]

Answer:

Step-by-step explanation:

35%+28%=63%

37% of the cars were tan

7 0
2 years ago
Other questions:
  • What is the equation of the line that passes through (-5, 7) and is parallel to the line y = 4x + 5?
    14·1 answer
  • Given: AB tangent to circle O at B, and secant through point A intersect the circle at points C and D. Find CD, if
    7·2 answers
  • Does anyone know what x is - 3/4 (x+2)=6
    13·2 answers
  • What are the zeros of the function f(x) = x2 +64? (Hint: b=0)
    14·1 answer
  • The weight of a package increases by 2 pounds. The new weight of the package is 8 pounds. Write an equation to represent the sui
    8·2 answers
  • Fam some one please help what is 50 divided by 5!
    15·2 answers
  • Distribute -3(9x^2+10x)
    13·1 answer
  • The measure of one of the acute angles in a right triangle is 59°.
    8·2 answers
  • 8th Grade Math Pls help, I'll mark Brainiest for the First Correct answer
    7·1 answer
  • 58 less than a number n
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!