Option B: A three-dimensional solid made from a pile of similar two-dimensional
circles that grow smaller as the solid gets taller until it reaches a
point at the vertex
The A is a cylinder, the D es pyramid, and I cannot figure out what the C is.
I did the work for it and I got an area of 136, sorry I don't think I got it.. thought that if I told you before I left you wouldn't pin it to yourself wondering why I just left.. again, my apologies. hope you get the correct answer! :(
You have to use PEMDAS (Parentheses Exponents Multiplication/Division Addition/Subtraction) to solve this,
Because you don't have any parenthesis or exponents you start with Multiplication/Division. This means you do 4*3 to get 26+5-12
Then, you move to Addition/Subtraction in which you complete left to right, So you do 26+5 to get 31-12
Finally you subtract 31-12 to get 19
Answer:
D the answer is D, thats when cos and sin are equal together
Base=x+7 Height=x Area=60. 60=((x+7)(x))/2----->60=(x^2+7x)/2
120=x^2+7x X^2+7X-120=0. QUDRATIC FORMULA: -7+/- SQRT(49+480)/2
(-7+/-23)/2... 8 and -15. -15 ISNT the answer because you cant have a negative length. X=8 Base=8+7---->15 Height=8
