Tuesday
September 30, 2014

Posts by hannah


Total # Posts: 2,869

science
2. How do enzymes impact biochemical reactions in the body? A. Enzymes are catalysts to biochemical reactions. B. Enzymes lower the activation energy of biochemical reactions. C. Enzymes can speed up biochemical reactions. D. All of the above are correct.
November 6, 2013

science
1. In an experiment, a scientist notices that an enzyme’s catalytic rate decreases when the pH of the environment is changed. Which of the following best summarizes the effect of pH on the enzyme? A. pH changes the shape of the enzyme. B. pH takes energy away from the ...
November 6, 2013

biology
Sulfur has six electrons in its outer most energy level. In ionic bonding, it would tend to ­­­­­­­­­_____________________________. A. take on two more electrons B. give away two electrons C. give away six electrons D. not take on anymore ...
November 6, 2013

biology
Which of the following involve electronic charges? A. hydrogen bonds B. ionic bonds C. polar molecules D. all of the above
November 6, 2013

algebra
I have a problem with this: y=1.5x Questions: What is the rate of change between the variables? State whether the y values are increasing or decreasing, or neither, as x increases Give the y intercept List the coordinates of two points that lie on the graph of the line in the ...
November 5, 2013

biology
Which of the following involve electronic charges? A. hydrogen bonds B. ionic bonds C. polar molecules D. all of the above
November 5, 2013

biology
please help
November 5, 2013

biology
Sulfur has six electrons in its outer most energy level. In ionic bonding, it would tend to ­­­­­­­­­_____________________________. A. take on two more electrons B. give away two electrons C. give away six electrons D. not take on anymore ...
November 5, 2013

social studies
What is a possible explanation of why China abandoned overseas exploration in 1435? A. China could not develop advanced naval technology. B. The voyages of Zheng He failed to impress local rulers. C. Confucian scholars wanted to protect China’s traditions. D. The Chinese ...
November 5, 2013

algebra 2
Isabella shipped a 5-pound package for $4. She shipped a 3-pound package for $3.60 and a 1-pound package for $3.20. A 10-pound package cost $5 to ship. The shipping cost follows a pattern based on the weight of the package. Which expression can be used to calculate the ...
November 5, 2013

algerbra 2
1. Marissa is a photographer. She sells framed photographs for $100 each and greeting cards for $5 each. The materials for each framed photograph cost $30, and the materials for each greeting card cost $2. Marissa can sell up to 8 framed photographs and 40 greeting cards each ...
November 5, 2013

Physics (Please check)
So I just want to make sure I did the math corretly: My value for angle of incidence was 20 degrees and for refraction it was 15 so I did Sin(20) / sin (15) = 1.32 which is very close to the accepted value. Is this corret?
November 4, 2013

Physics (Please check)
Calculate the index (n water) of refraction of water given the angle of incidence and the angle of refraction. I know that the accepted value for n is 1.33 but I am not sure how to calculate the index. Would I use Snell's law: na sin Qa = nb sin Qb? Thank you!
November 4, 2013

Math
What would this look like in an equation in slope intercept form? through (-3,4) and (3,-4) Would it be Y=4/3x+0 ??
November 4, 2013

Math
What would this look like in an equation in slope intercept form? X-intercept -4, Y-intercept -2 Would it be Y=-1/2x+2 ??
November 4, 2013

Math
What would this look like in an equation in slope intercept form? through (0,7) and (1,9) Would it be Y= 2/1x+7 ?
November 4, 2013

Math
How would you put this in an equation in slope intercept form? what would it look like? X-intercept -4, Y-intercept -2
November 3, 2013

Math
How would you put this in an equation in slope intercept form? what would it look like? Y-intercept -5, X-intercept 3
November 3, 2013

Math
How would you put this in an equation in slope intercept form? what would it look like? Slope -3; x-intercept 3
November 3, 2013

Math
How would you put this in an equation in slope intercept form? what would it look like? Slope 1/2 ; x-intercept 4
November 3, 2013

English
Is that correct?
November 3, 2013

English
False
November 3, 2013

English
Whitman, Bradstreet, and Wheatley included sensory details in their poetry. True/False
November 3, 2013

algebra
please help with my other ones
November 3, 2013

algebra
last one write an equation of the line that passess through 10,-4 and is perpendicular to the line whose equation is y=2/5x+8 help
November 3, 2013

algebra
I am confused on what to do with this?
November 3, 2013

algebra
find an equation of the line that passess throught 0.-6 amd 5, 3
November 3, 2013

algebra
wtite an equatiom of the line through 5,-3 and -2 and -8 in slope intercept form
November 3, 2013

algebra
one line paasses thru -3,-2 and -2,1 and another line passes thru -1,2 and 2,1 what is the relationship between the lines are they parrelle, perpendicular, or neither?
November 3, 2013

algebra
In a line with a slope of 1/2 a perpendicular to another line, the the slope of the is -2 true or false
November 2, 2013

algebra 2
by 10 there are 25 people admitted to a park by 11 there are 50 what would a slope of zero between 2 consecutive hours mean and can the line between 2 consecutive numbers have a negative slope
November 2, 2013

math 5th grade
How to solve 547X73
November 1, 2013

algebra 2
This homework question was removed due to a copyright claim submitted by the National Network of Digital Schools Management Foundation (NNDS).
November 1, 2013

algebra 2
This homework question was removed due to a copyright claim submitted by the National Network of Digital Schools Management Foundation (NNDS).
November 1, 2013

math 5th grade
How to solve 547X73
November 1, 2013

algebra
This homework question was removed due to a copyright claim submitted by the National Network of Digital Schools Management Foundation (NNDS).
October 31, 2013

algebra 2
the 2 unequalities -26<4k-2 and 2k-1<6 A. Write a compound inequality to combine the inequalities shown previously. and B. Solve the compound inequality for values of k. Show your work. Write your final answer as one inequality. please help
October 31, 2013

Geometry
A ladder 12 m in length rests against a wall. The foot of the ladder is 3 m from the wall. What is the measure of the angle the ladder forms with the floor?
October 31, 2013

Science
did you get them all right ?
October 30, 2013

math
is 3/8 more,less than or equal to 40%
October 30, 2013

algebra 2
please help me with this
October 29, 2013

algebra 2
A garden supply store sells two types of lawn mowers. The cashiers kept a tally chart for the total number of mowers sold. They tallied 30 mowers sold. Total sales of mowers for the year were $8379.70. The small mowers cost $249.99 and the large mowers cost $329.99. Find the ...
October 29, 2013

algebra 2
You have $22 in your bank account, and you deposit $11.50 per week. Your cousin has $218 in his bank account and is withdrawing $13 per week. The graph of this problem situation intersects at x=8. What does this mean? A. In 8 weeks, you will have triple the amount of money in...
October 29, 2013

algebra 2
A garden supply store sells two types of lawn mowers. The cashiers kept a tally chart for the total number of mowers sold. They tallied 30 mowers sold. Total sales of mowers for the year were $8379.70. The small mowers cost $249.99 and the large mowers cost $329.99. Find the ...
October 29, 2013

algebra 2
I need to graph these what would be the equations x=300 y=-300 x=200 y = 400/3 are these the correct answers
October 29, 2013

algebra 2
This homework question was removed due to a copyright claim submitted by the National Network of Digital Schools Management Foundation (NNDS).
October 29, 2013

algera
This homework question was removed due to a copyright claim submitted by the National Network of Digital Schools Management Foundation (NNDS).
October 27, 2013

algebra 2
Ms. Tweed earns $12 an hour. Deductions for taxes and insurance take 25 percent of her earnings. Which equation could be solved to find Ms. Tweed’s take-home pay, p, after 80 hours of work?
October 27, 2013

algebra 2
A. 75 = 10d + 5n B. 75 = 10d · 5n C. 75 = dn D. 75 = d + n
October 27, 2013

algebra 2
please help me with this would it be 75=10D+5N
October 27, 2013

algebra 2
Marshall has $1.25 in dimes, d, and nickels, n, in his pocket. Which equation could be solved to find the possible combinations of dimes and nickels Marshall has?
October 27, 2013

biology
Covalent bonds are not affected by chemical reactions. true ir false
October 24, 2013

biology
please help
October 24, 2013

biology
What are the reactants in the following chemical formula? C6H12O6 + 6O2 ¨ 6CO2 + 6H2O
October 24, 2013

algebra 2
would 90=3y+2-5y be right
October 24, 2013

algebra 2
. A tile setter is joining the angles of two tiles, A and B, to make a 90-degree angle. The degree measure of Angle A can be represented as 3y + 2 and of Angle B as 5y. Which equation represents this situation? these are the one I neeeed help with
October 24, 2013

algebra 2
One-fourth of the distance between two cities is 100 miles less than two-thirds the distance between the cities. Which equation expresses this situation?
October 24, 2013

algebra 2
do you guys tutor
October 24, 2013

algebra 2
7.15 =1/3 P+4.50 or 7.16=1/3 (p+4.50)
October 24, 2013

algebra 2
yes
October 24, 2013

algebra 2
Three friends share the cost of a pizza. The base price of the pizza is p and the extra toppings cost $4.50. If each person’s share was $7.15, which equation could be used to find p, the base price of the pizza?
October 24, 2013

algerbra 2
Lisa buys a carpet for $230. The price is $3.50 per square foot. If Lisa had a special discount of $50 off, which linear equation could be used to find the area, A, of the carpet?
October 24, 2013

algebra
A restaurant meal for a group of people cost $85 total. This amount included a 6% tax and an 18% tip, both based on the price of the food. Which equation could be used to find f, the cost of the food
October 24, 2013

Algebra 1
I'm having trouble putting these equations in standard form. PLEASE HELP ME!!! Y=12x+4 Y= -8x+-5 Y=-2x+8 Y=5x+5 Y=18x+-3
October 23, 2013

algebra 2
that is a division signs '
October 23, 2013

algebra 2
how do you simplify 5-x _______ x^2-20 to = 4
October 23, 2013

algebra
This homework question was removed due to a copyright claim submitted by the National Network of Digital Schools Management Foundation (NNDS).
October 23, 2013

algerbra 2
C. The company accountant says that the rational expression will never have a zero denominator because , the number of units, is always a whole number. Explain why the accountant is correct. 20^-180/4^2+36x+72 this is the second part can you help me
October 23, 2013

algerbra 2
B. The rational expression is not defined for any values of 20^2-180/4x^2+36+ 72 for which the denominator equals zero. Find the value(s) of for which the denominator equals zero.
October 23, 2013

algebra 2
This homework question was removed due to a copyright claim submitted by the National Network of Digital Schools Management Foundation (NNDS).
October 23, 2013

biology
4. Using sunscreen and consuming energy drinks involve _____________________. A. using biological information to make informed decisions B. risks to using biotechnology C. using genomics to make informed decisions D. all of the above
October 23, 2013

biology
A sheep with human genes spliced into it to produce human antibodies is an example of a(n)
October 23, 2013

algebra 2
On a second report that you reviewed, the team simplified the expression to 4. Show how to simplify the rational expression correctly. Explain your steps so that the team understands how to simplify an expression similar to this in future experiments.
October 23, 2013

alg
A clothing company uses the expressions that follow to estimate revenue and expenses based on the production of x lots of clothes: Revenue: Expenses: The ratio of revenue to expenses is represented by the rational expression that follows: A. Factor the numerator and ...
October 23, 2013

algebra 2
3x2 – 12x + 7x – 28 factor the polynomial by grouping
October 22, 2013

algebra 2
here is the last part of the question Another canvas of size B has a width of 2x+3 and a length of 6x-1. Write a polynomial expression, in simplified form, that expresses the difference in area of canvas size A and canvas size B
October 21, 2013

algebra 2
can you please help me with this
October 21, 2013

algebra 2
This homework question was removed due to a copyright claim submitted by the National Network of Digital Schools Management Foundation (NNDS).
October 21, 2013

quantum physics
the quantum factor algorithm for N=91 is carried out. What is the period k of the periodic superposition set up if it chooses x=8? Guys please help...its very urgent!!
October 18, 2013

quantum physics
@anony i got 8 d.help me with 6 a
October 17, 2013

Math Critical Thinking
2years=24months
October 16, 2013

allgebra
can you help me with this last one?
October 16, 2013

allgebra
1/3(x+5=k) solve for x
October 16, 2013

algebra
thank you
October 16, 2013

algebra
3(a+5b)-7/2(2b-a) combine like terms
October 16, 2013

math
Solve the compound inequality. -3 < 2x - 3 < 5
October 16, 2013

math
Suppose a number is chosen at random from the sample space {3, 4, 5, 6, 7}. Find the probability as a fraction and percent. Round the percent to the nearest tenth. Please show your work. P(less than 3)
October 16, 2013

calc
C(d) = 120 + 30d + 1/8 d^4 sorry the formating gets off
October 16, 2013

calc
The cost of producing d hundred plastic toy dinosaurs per day in a small company is C(d) = 120 + 30d + 1 8d4 dollars. This company is currently producing 500 di- nosaurs each day. Using calculus, estimate how much the company should change the production to make their daily ...
October 16, 2013

calc
On January 1, 2013, at a price of x dollars, the demand for a certain product was D(x) = 300 x2 + 10px thousand units per month. t months after January 1, 2013, it is estimated that the price of the product will be x(t) = 3t4/3 +16 dollars. At what rate is the demand changing ...
October 16, 2013

calc
the answer is >-1 but when i derived the equation there were still no negative numbers because -7/3 is a constant so it went to 0. after deriving the equation i got t to be -1 so i pluggedin -2 and 0 and got both to be positive(or increasing) all solutions is not an option ...
October 15, 2013

calc
sorry the equation is 1/3(t^2) +t^2 +t -7/3
October 15, 2013

calc
An ice hockey puck is sliding along a straight line so that its position is s(t) = t3 3 + t2 + t − 7/3 . At which times t is the velocity of the puck increasing? I tried deriviting the equation then solving for t and plugging in numbers to see if it was positive or ...
October 15, 2013

calc
thankyou!
October 15, 2013

calc
Find an equation of the tangent line to the graph of f(x) = (x3 − 3x2 + 1)(2x4 − 1) at x = −1.
October 15, 2013

finance
please help
October 13, 2013

finance
1. Yest Corporation's bonds have a 15-year maturity, a 7% semiannual coupon, and a par value of $1,000. The market interest rate (r) is 6%, based on semiannual compounding. What is the bond’s price? 2. A 20-year, $1,000 par value bond has a 9% annual coupon. The bond ...
October 13, 2013

physics
A staging that weighs 350 N supports two painters, one 230 N and the other 440 N. The reading in the left scale is Fl = 480 N .What is the reading Fr in the right hand scale? Answer in units of N
October 8, 2013

biology
5. A researcher finds that blood alcohol levels cause progressive damage to the liver. All the mice in his study were fed the same amount and types of food. Different concentrations of alcohol were injected into each mouse. One group of mice does not receive any alcohol at ...
October 8, 2013

Science
What building blocks are starches made of? What is the difference between sugar and starch? What term describes the size of a starch? What molecule has to be added to a starch to break it down?
October 7, 2013

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