Karly

There are four light switches in the room. They can be in either of two positions - on or off. How many possible ways can the four switches be arranged? What if there were eight switches?

At one university, the students are given z-scores at the end of each semester instead of traditional GPA's. The mean and standard deviation of all the student' culmulative GPA's, on which the z-scores are based, are 2.7 and .5 respectively. i understand...

Acetic acid is a polar molecule and can form hydrogen bonds with molecules. Therefore, it has a high soulubility in water. Yet acetic acid is also soluble in benzene (C6H6), a nonpolar solvent that lacks the ability to form hydrogen bonds. A solution of 3...

Write the balanced equation and solubility product expression for the solubility equillibrium of Mn3(PO4)2: Ksp expression?

Write a formula for f^-1 (x) if f(x) = (x+5)/(3x-4) and state the domain of f-1

what is the answer to this problem : there are 1.5 times more carp in the lake this year than last year. this year's carp population is 423. write an equation to determine how many trout are in the lake this year.

How much heat is required to convert solid ice with a mass of 875 g and at a temperature of -11.5 °C to liquid water at a temperature of 52.0 °C? (The specific heat of ice is cice = 2100 J/kgK, the specific heat of water is cwater = 4186.8 J/kgK, and the...

Heat is added to 0.77 kg of ice at -25 °C. How many kilocalories are required to change the ice to steam at 131 °C? I don't even know where to begin with this

Lauren earns $13 per hour at her after school job. If she has worked 64 hours at this job, how much has Lauren earned total?

Why is the system of equations 2x+7y=14 and 4x+5y=10 equivalent to the system of equations 4x+14y=28 and 8x+10y=20 ?(1 point) Responses 1.Both equations, 2x+7y=14 and 4x+5y=10, can be multiplied by 1/2 to produce the equivalent system of equations. 2.The...

Which paragraph arranges the sentences to show a **smooth non-linear** and which one shows a **smooth linear** progression of events: 1.Taylor, now a teenager, picks an apple off the tree. Apples grow on the tree. A tiny apple tree sprouts from the ground...

oh wait...should use the 97.5 percentile to get the answer to the 2.5% top students?? because they wouldn't have negative z-scores, right?

120 km = 463 km ------------.... --------- 1cm(map) map distance (cm) Cross-multiply to get algebra equation. 120x =463 x = 463/120 = 3.858333333 (round off to 3.9 since 3.858 is closer to 3 9/10 than 3 8/10 - always round up from 5 or greater 3.8(58) x =...

Thanks for your help!

The solution with with the highest concentration of hydronium ions will be the solution with that appears the most acidic. In which case the solution with the smallest PH... 3.21

So by multiplying it by 1/2 or one over 2, is a way to make them equivalent?

Thank you for your answer, but you did not provide an answer. For number one, they stated "when multiplied by 1 / 2 " not 2. Why is the system of equations 2x+7y=14 and 4x+5y=10 equivalent to the system of equations 4x+14y=28 and 8x+10y=20 ?(1 point) Resp...

Thank you for your help and answer. I can only pick one. For the smooth non linear I picked: 2. Taylor, age 10, plants an apple seed. A tiny apple tree sprouts from the ground. Apples grow on the tree. Taylor, now a teenager, picks an apple off the tree....