Document 1.05MB

These are practice questions for Campbell's Biology, Chapter 42: Circulation and Gas Exchange. This is a great resource for AP, Honors,...

Document 1.05MB

These are practice questions for Campbell's Biology, Chapter 42: Circulation and Gas Exchange. This is a great resource for AP, Honors,...

Mixed math review (answer)

Hi Tyler, Since you are given a point (6,-6) and a slope (-1/2), you can plug those values into the point-slope form of a line: y-y1 = m(x-x1) Given: m = -1/2 x1 =6 y1 = -6 We get: y-(-6) = -1/2(x-6) Simplify: y...

If n!+1 is prime, is n prime? (answer)

There are two types of factorial primes: factorials plus one (n!+1) and factorials minus one (n! -1) • n!+1 is prime for n=1, 2, 3, 11, 27, 37, 41, 73, 77, 116, 154, 320, 340, 399, 427, 872, 1477, 6380, and 26951 (107707 digits) So, n might be prime,...

Hi Kirk, I'm not sure what the question is, but I can show you a couple of ways to write equations of a line. Here you can use the point-slope equation: y - y1 = m(x-x1) You have a point, (7,4), where x1 = 7 and y1 = 4, and a slope, -8/3 Plug...

find k so that k2+2x+k is a factor of 2x4+x3-14x2+5x+6 and also find the zeroes of the polynomials (answer)

Hi Ritesh! Here is my solution: Given factor: x2 + 2x + k = 0 Given polynomial: 2x4 + x3 -14x2 + 5x + 6 Divide the polynomial by the factor x2 + 2x + k ) 2x4 + x3 -14x2 + 5x + 6 ( 2x2 - 3x +(- 8...

Document 12k

A straightforward, step-by-step solution to the problem: Find two positive numbers x and y satisfying y + 2x = 80 whose product is a...

Can someone check this (answer)

Normal distributions can differ in their means and standard deviations. Additionally, standard normal distributions cannot differ in either their mean or standard deviation. Normal distributions can have different means calculated from the given sample or population set. The...

Scheduling A regular schedule is the most successful structure for tutoring, and I offer discounts for sessions scheduled on a regular basis (see Session Fees). I also tutor individuals who want single sessions, have irregular schedules, need immediate help, or simply are not sure. I try to be as flexible as possible and am usually able to stay longer than scheduled... read more

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Statistics is a visual subject, and I always recommend that students draw normal distribution curves in bulk. The curve can be helpful...

In p minutes, Lynn can type 1 page. This can be represented as a rate: 1 page per p minutes As a fraction, this becomes: 1 page/p minutes Usually in math, when a number has a unit (i.e. 1 page) associated with it, keep the...