Answer:
See below.
Step-by-step explanation:
sin2x-tanx
= 2sinx cosx - sinx/cos
= (2sinx cos^2x - sin x) / cos x
= sinx ( 2 cos^2x - 1 ) / cos x
Now sin x / cos x = tanx and 2 cos^2 x - 1 = cos2x
so this simplifies to cos2x tan x.
Answer:
26 ft.
Step-by-step explanation:
1) First I would suggest swapping 8 and 2/3 from a mixed number into a fraction:
8 2/3=8+2/3=(24/3)+(2/3)=26/3
2) Next you just need to multiply the number of shelves John wants to make by the required amount of lumber. He wants to make 3 shelves and each one requires 8 2/3 ft. of lumber, which(as we found above) is 26/3 ft. of lumber:
3×(26/3)=26
So John will need 26 ft. of lumber for his shelving.
One scenario
The first person chosen wins a dollar, the next five dollars, the next ten and the fourth fifty.
I imagine you want iterations, because you care who wins what. But you haven’t told me how many people are in your family, whether anyone is allowed to win twice, whether the rules preclude something like two girls winning in a row, or anything else required to do that particular calculation.
Answer:
A satellite is a moon, planet or machine that orbits a planet or star. ... Usually, the word "satellite" refers to a machine that is launched into space and moves around Earth or another body in space. Earth and the moon are examples of natural satellites. Thousands of artificial, or man-made, satellites orbit Earth.
Step-by-step explanation:
Answer:
x= 0.4, or x = 2/5
Step-by-step explanation:
To find x you have to replace f(x) with 0 and solve for x
Hope this helps:)