Answer:
u can use there Pythagoras theorem to find length of Cb first and again cb is equal to AB and use Pythagoras theorem of triangle abe
Answer:
Step-by-step explanation:
Use the slope- intercept formula:
where m = slope and b = y-intercept.
Since we are told the slope is -1/2, this means m = -1/2
We are also told the y-intercept is at (0, 6) this means b = 6
So now we have the equation:
y = -1/2x + 6
the next number would be 44,000,088
The answer is 65%
Explanation: 20 * 65% = 13
Answer:
cos(α2)= −1/5√2
Step-by-step explanation:
you are given tan(α)=7/24 , so you can find the length of the hypotenuse using the Pythagorean theorem, which is a2+b2=c2 with a and b being the legs of the triangle and c being the hypotenuse of the triangle.
c2=7^2+24^2
⟹c2=49+576
⟹c2=625
⟹c=25
if π<α<3π/2 , then α has to lie in quadrant III where cosine is negative. so cos(α)= −24/25
The half-angle identity for the cosine function is cos(α2)=±√1+cos(α)/2 , so plugging the information in, we get
cos(α2)=±√ 1+(−24/25)/2
⟹
cos(α2)=±√1/25 / 2
⟹cos(α2)=±√1/50
⟹cos(α2)=±1/5√2
