Thursday
May 5, 2016

# Posts by Zane

Total # Posts: 31

Algebra
For what real values of a is x^2 + ax + 25 the square of a binomial? If you find more than one, then list your values in increasing order, separated by commas.
February 24, 2016

algebra
There are 5 quadratics below. Four of them have two distinct roots each. The other has only one distinct root; find the value of that root. 4x^2 +16x - 9 2x^2 + 80x + 400 x^2 - 6x - 9 4x^2 - 12x + 9 -x^2 + 14x + 49
February 11, 2016

science
a chunk of lead has a volume of 45cm^3 and a mass of 510g. What is the density of lead.
November 19, 2015

Math
The food stand at the zoo sold 2,514 pounds of hamburger last month.the average cost of a pound of hamburger is \$2.Jeremy estimates that about 6,000 worth hamburger was sold last month.Is this less than or greater than the exact answer?
September 2, 2015

Precalculus
Okay I understand now. And #18 is NO because there is two y values that are placed in -1, correct? Like (-3,-1) and (1,-1) since the test would both pass on 2 points.
September 29, 2014

Precalculus
How can I find out how this graph and these sets of numbers are one-to-one compatible? I have no clue.. Here is a screenshot of the questions. Just replace the 0 with an O. Thank you! prntscr.c0m/4rnu45
September 29, 2014

Precalculus
Oh wow lol I did not even see that.. Wow thank you for pointing that out haha!
September 29, 2014

Precalculus
September 29, 2014

Precalculus
So for our review, our teacher posted the answers to the review online. I do the problem and check my work with the review, but I am questioning number 8. Here is the problem with the answer: prntscr.c0m/4rnpcn How does it equal 16? I am so clueless! G * F (1)? I got f(1)=6 ...
September 29, 2014

Precalculus
Nevermind got it! it's because it's supposed to equal 0 so you have to solve the equation to make it zero. Basically by doing the inverse of the number but not really.
September 29, 2014

Precalculus
Find the roots of the following quadratic equations by factoring. y=x^2+9x-36 I got (x+12)(x-3) but on the answer key it says that the answer is this, however it renames the x values with opposite values. For example, the answer on the review for it has my answer, but the ...
September 29, 2014

AP Chemistry
1. Na2O, CO2, NO2 This is because Metal oxides form a strong base, and are therefor very weak acids. This means that this is the only viable option. Hope this helps! By the way, I know this is right because I put this answer in my homework just know and got it right.
March 4, 2014

chemisty
Calculate the volume of 4.0ml of nitogen gas at 754mmhg and 25 degrees celcius
April 8, 2013

I'm not very good at spanish. Will somebody please help? 4. Which expression is used to talk about what you have just done? A.) venir de B.) hacer la tarea C.) hacer un viaje D.) acabar de 5. Vengo de la clase. ¿Qué acabo de hacer? A.) Acabas de bailar. B.) ...
January 28, 2013

math
use transformation to rescue animals, start out at the x. the animal is at the bull's eye (-4,2) translate 1 unit rotate 90 degree counterclockwise about the origin rotate 180 degree translate 3 units down reflect in the y-axis find the right order
November 15, 2012

Math
When 8 children go on a picnic, 6/8 of them wear jeans, how many wear jeans
November 1, 2012

math
dark green is the unit rod 6/6
July 29, 2012

Math
How many days in 2 years
May 15, 2012

engineering science
a boat can sail at 27 m.s in still water. the boat must cross a river that flows at 9 m.s towards the east . if the boat crosses the river by going up stream at an angle of 23 south, what will the size and angle of the resulting velocity be?
February 9, 2012

physics
23 degrees south
February 9, 2012

physics
a boat can sail at 27 m.s in still water. the boat must cross a river that flows at 9 m.s towards the east . if the boat crosses the river by going up stream at an angle of 23 south, what will the size and angle of the resulting velocity be?
February 9, 2012

mathematics
find the general solution of the following first order differential equation. u(t): du/dt =(u/(t+2t)) pls show all working
October 26, 2011

calculus
For each function, find a. f''(x), and b. f''(3). f(x)= 1 --- 6x^2
March 2, 2011

agebra
Factor out 14xy(-)/14xy(3x^4y^7) now cancel out 14xy your left with -1/3x^4y^7
March 1, 2011

College Algebra
f(x)=-(-2)^3+112-8(-2)+7 f(-2)= 143
March 1, 2011

math
sam makes 70% of his free throws what is the probability that sam makes 2 free throws in a row
February 1, 2011

math
If 250,148,571 is the total population what percent is 136,800,000?
October 6, 2010

science
Blank have vibrating particles that dont have enough energy to move out of position?
September 7, 2010

science
What vibrating particles dont have enough energy to move out of position?
September 7, 2010

Physics
Two objects moving with a speed v travel in opposite directions in a straight line. The objects stick together when they collide, and move with a speed of v/10 after the collision. (a) What is the ratio of the final kinetic energy of the system to the initial kinetic energy? 1...
March 3, 2010

social studies
How did the Pilgrims become friends with the Wampanoag?
October 27, 2008

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