Mathematics

Which is the biggest: -1 or -5/3

I know its simple yet I think I have a mistake in my notes and now im confused. Thanks in advance.--1= -1 -5/3 = -1.6 -1 is bigger since it is a negative and its closer to 0--1is biggest--1 is bigger

Equivalent plane figures question

I am so annoyed over this one question: The rectangle and isosceles triangle on the right are equivalent. What is the perimeter of the isosceles triangle? Since you cannot see it, the length of the re

Whats 7 percent of $27.48

7% is the same as 7/100 which is .07 So to determine 7% of $27.48 multiply .07 x $27.48 = $1.9236 Rounding, the answer would be $1.92

Help with a Calc 3 Proof? I think it's easy and I'm just missing something

Hey everyone! The problem: If f is a scalar-valued function and F is a vector field (both over R2), then ∇∙(fF)=∇f∙F + f(∇∙F) Im preparing for a midterm and having some issues with this final proble

What is the probability that none are defective

In a shipment of 20 computers, 3 are defective. Three computers are randomly selected and tested. What is the probability that none are defective if the first and second ones are not replaced after be

Help with evaluating a line integral

Could someone please help me with this problem? I am so stuck on it. I was attempting to do in 3 parts, but I think my parameterizing (and especially my interval for each integral) is incorrect. I did

Math problem : please help!

how do i do this: A grocery sells peanuts for $3.20 per pound and cashews for $8 per pound. The grocer wants to make 100 pounds of mixture of peanuts and cashews that can be sold for $4.40 per pound.

Please help me solve this problem its in the more detail spot

crawford can paint a fence by himself in 15 hours and bernice can paint the same fence in 16 hours. How long will it take them to paint the fence if they work together?-Divide the two in half, and fin

Question about math geometry (its difficultish 10 grade math)

4)You’re a hip new fashion designer for Coach and are in the process of designing a new handbag.It’s to be shaped like a hemisphere with a radius of 4 inches.What is the surface area and volume of thi

Prove that ABCD is a parallelogram, given that ABCD is a quadrilateral with BC parallel to AD and BC=AD.

How do I prove ABCD is a quadrilateral given the information above?-This is a standard property and you can the proof in any standard text book on Plane Geometry. Join on diagonal and prove that the t

MATH problems dealing with POSSIBILITIES. HELP IS APPRECIATED

Theo is participating in a free throw competition. to advance to the next round, he must make at least 12 of 15 free throws, If theos free throw shooting percentage is 82%, what is the probability tha

What is the volume of the solid obtained by rotating the region bounded by the curves; y=x^2 & y=1, about y=2

Id go with the washer method.The axis of rotation is horizontal, so slice vertically, implying dx. Note that the curves intersect when x = -1 and x = 1. V = ∫ A(x) dx from -1 to 1 A(x) = πR^2 - πr^2

Any help on this question

There are $572 available to build a fence around a rectangular garden. One side must be reinforced and will cost $14 per foot. The other three sides can be built for $8 per foot. Find the dimensions o

Find to the nearest degree the solution set to ; cos² x = 2cos x +1

Domain is 0 Also, show work please-We treat the equation as a standard quadratic and solve it: cos²x = 2cosx + 1 cos²x - 2cosx - 1 = 0 (cosx - 1)² - 2 = 0 (cosx - 1)² = 2 cosx - 1 = ±√2 cosx = 1 ± √2

Maths homework help with parabolas

The equation of a parabola is y=ax2+bx+c A parabola crosses the y-axis at (0,7) and passes through (2,5) and (5,42). Find the values of a, b and c. I mainly need to know how to know how to work it ou