Science

How to Questions and Answers About Science

Which of the following can be written as sin7x? (MULTIPLE CHOICE)?

a) (cos^2)5x – (sin^2)2x b) sin5xcos2x – cos5xsin2x c) (cos^2)5x + (sin^2)2x d) sin5xcos2x + cos5xsin2x

Can a black widow spider have a red marking on it’s anterior side rather than the posterior side?

I live out in the country in cental Florida, and found this spider in my bathroom. I am not sure what it is. I read that black widow spiders have the red marking on its posterior side and this one has it on the top(anterior).It looks like it may be a baby and wonder if…

In what state to you live?

I live the state of confusion? Are you my neighbor?

A cylinder has a curved surface area of 4m2. If it has a radius of 70cm, what is the height and the volume?

A cylinder has a curved surface area of 4m2. If it has a radius of 70cm, what is the height and the volume?

GMAT geometry Question!?

A closed cylindrical tank contains 36 (pie) cubic feet of water and is filled to half its capacity. When the tank is placed upright on its circular base on level ground, the height of the water in the tank is 4 feet. When the tank is placed on its side on level ground, what is…

The area of a rhombus is 140 square inches; given a diagonal length of 20 inches, how to find its side length?

The area of a rhombus is 140 square inches; given a diagonal length of 20 inches, how to find its side length?

How much rainfall does Tahiti get in one year?

How much rainfall does Tahiti get in one year?

Is water magnetic?

water droptlets always stick together and to stuff

For the function g(x)=(1-2x)^2(x-3)?

i)state whether the function is even or odd ii) find the x and y intercepts iii) find the first and second derivatives, the intervals on which the function is increasing and decreasing, inflection points and concavity

5 plants in the Great Barrier reef?

This is for a science project and I really need help! I have already found 5 animals now i need 5 plants. Oh and I also need information on the compatition and parasites in the reef system. I have already found info about the mutualism. Please hellppp mee :)