09/30/17

Basic Relations

The sum of two numbers is 51. The smaller number is 5 less than the larger number. What are the numbers?

09/30/17

Basic relations

Problem PageA textbook store sold a combined total of 444 physics and math textbooks in a week. The number of physics textbooks sold was two times the number of math textbooks sold. How many... more

09/30/17

Wrie the equation of the line that passes through (2,4) and as a slope of -1 in point -slope form.

I NEED HELP FIGURING IT OUT ITS TO HARD

Evaluate (i•v,j•v,k•v​), where i​, j​, and k are the standard unit vectors:

Evaluate (i•v,j•v,k•v), where i, j, and k are the standard unit vectors:r=(−5,0,−4)v=(-4,-5,0) w=(5,-10,-10)

Graph the conic and find the values of​ e, a,​ b, and c:

Graph the conic and find the values of e, a, b, and c:r=14/3+4cos(theta)

09/30/17

(3x+2)(3x-5)=0 what are the constants in this equation

(3x+2)(3x-5)=0 what are the constants in this equation This is an sat question

The product of two consecutive positive integers is 156. Find the numbers

I dont know what to write here plzz give me the anwser fast

find the coordinates of the point on y-axis which is nearest to the point (-2,5)

please help me in solving  this question gettingtrouble

09/29/17

let c and d be positive integer with c<d.What is the greatest value for c if 5c+4d=79?

This is a question i have in my textbook.Please help me on this problem

09/29/17

The difference of three times a number and 44 is −19−19.

 math

Calculating acceleration.

Jane drives her car from A to B for a distance of 170 km for 2 hours. She then continues her journey to C and increases her speed to 100 km/h for 45 minutes. Calculate the acceleration of the car.

09/28/17

how would i find the y = version of this expression?

i need to turn xy = yx into a y = version so that i can take its derivative. how would i go about this?

How do I factor problems with multiple exponents and operations?

Here are 2 examples of the problems I am struggling with:   16(11x-13)^2 - 25(2x+7)^2   (2x+3)^7(5x-1)^30(8x+1)^3 - (2x+3)^5(5x-1)^30(8x+1)^5

09/28/17

what is the difference between the weight of 5.28 lb and the mean of the weights

Data set 31 "Garbage Weight" in appendix B list weights (lb) of plastic discarded by households. The highest weight is 5.28 lb, the mean of all of the weights is x= 1.911 lb and the standard... more

09/28/17

All objects in free fall accelerate at?

a) 9.81 m/s b) -9.81 m/s^2 c) 0 m/s^2 d) 9.81 m/s^2 e) -9.81 m/s

09/28/17

If I have a 85.06% and I make a zero on a project that is 100% of my grade what will my grade be?

I have a project tomorrow and I may not be able to do it so I need to know what my final grade would be

09/28/17

the difference of 15 times a number x and 8 is less than 32

no other details

According to legend, a king requested that the royal scientist, Archimedes, determine if his crown was really made of pure gold.

Archimedes measured the mass of the crown and found it to be 505.43 grams. Using volume displacement, he found the volume to be 44mL. What was the density of the crown? Is the crown made of pure... more

09/28/17

Math word problem

A floor of a room is in the shape of square. It is to be covered with rectangular tiles that each have an area of 192 square inches.If the length of the floor is 14 feet, how many tiles are needed... more

09/28/17

how did you get this

If the slope is -4/5 it means (Δy/Δx) = -4/5 = (y-(-7))/(3-8) solving this algebraic equation yields y = -3.

how do I solve this?

Write a mathematical model for the problem and solve.One positive number is 3 times another number. The difference between the two numbers is 86. Find the numbers. (Enter your answers as a... more

09/27/17

rope is used to pull a 12 kg block across the floor with an acceleration of 3 m/s2. If the frictional force acting on the block is 47 N, what is tension inrope?

A rope is used to pull a 12 kg block across the floor with an acceleration of 3 m/s2. If the frictional force acting on the block is 47 N, what is the tension in the rope?

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