Brea

Determine the number of ways of selecting four letters, without regard for order, from the word 'parallelogram'

14 years ago

What does the term "ethics" mean? With what ethical standards must students comply? Are ethical standards higher for those in the medical profession? Should they be? Why or why not?

14 years ago

What is the molarity of a solution made by dissolving 10 grams of CaBr2 in enough water to make 400 mL of solution?

14 years ago

How many mL of a 6 M HCl solution are required to prepare 200 mL of a 0.2 M solution?

14 years ago

Use the following balanced equation. 3Sr(OH)2 + 2H3PO4 --> 6H20 + Sr3(PO4)2 How many mL of 0.10 M Sr(OH)2 are required to react with 30 mL of 0.30 M H3PO4?

14 years ago

Use the following balanced equation. 3Sr(OH)2 + 2H3PO4 --> 6H20 + Sr3(PO4)2 How many grams of Sr3(PO4)2 could be produced by the complete reaction of 200 mL of 0.40 M H3PO4?

14 years ago

Use the following balanced equation. 3Sr(OH)2 + 2H3PO4 --> 6H20 + Sr3(PO4)2 20 mL of H3PO4 is required to react with 40 mL of a 0.15 M Sr(OH)2 solution. What is the molarity of the H3PO4 solution?

14 years ago

Write molecular, ionic, and net ionic equations. AgNO3(aq) + KBr(aq) -->

14 years ago

Write molecular, ionic, and net ionic equations. HIO2(aq) + Ba(OH)2(aq) -->

14 years ago

The lifetimes of batteries produced by a firm are known to be normally distributed with a mean of 100 hours and a standard deviation of 10 hours. What is the probability a battery will last between 110 and 120 hours?

13 years ago

The grades for Economics students at a large university are found to be normally distributed with a mean of 76 and a standard deviation of 4. What proportion of the students are expected to have a grade between 84 and 88?

13 years ago

A loaded die is tossed. Which of the following assignments could be made for the probabilities of each simple outcome. P(1) = .2 P(2) = .2 P(3) = .2 P(4) = .1 P(5) = .1 P(6) = .1 P(1) = .2 P(2) = .3 P(3) = .1 P(4) = .1 P(5) = .1 P(6) = .0 P(1) = .1 P(2) =...

13 years ago

8. What will adding 50 to each score in a distribution do to the standard deviation of that distribution? will not change the standard deviation will increase it by 50 will increase it by 502 will not change it but will increase the variance

13 years ago

9. A probability experiment has three possible outcomes, A, B, and C. If P(A) = 0.60 and P(B) = 0.20, then P(C) = ______.

13 years ago

What will adding 50 to each score in a distribution do to the standard deviation of that distribution?

13 years ago

Suppose a tire manufacturer wants to set a mileage guarantee on its new XB 70 tire. Life tests revealed that the mean mileage is 47,900 miles and the standard deviation is 2,050. The manufacturer wants to set the guaranteed mileage so that no more than fi...

13 years ago

Assume there are two lakes containing trout and the weights of the trout in each lake are normally distributed. The distribution of trout weight in Lake A has a mean of 18 ounces with a standard deviation of 2 ounces. The distribution of trout weight in L...

13 years ago

Calculate the volume of 1.78M sulfuric acid that would be needed to neutralize 62.4 mL of a 2.09 M aqueous ammonia solution. The equation for the reaction is H2SO4(aq) + 2 NH3(aq) ---> 2 NH4(aq)+ SO4 ^-2 (aq)

13 years ago

What is the pH of 0.0169 M sodium sulfite.

11 years ago

rewrite the following in surd form : (16m squared) to the power of negative 3/4

7 years ago

I got the answer its b^2

13 years ago

Integrity

10 years ago

find the area of the circle base first. so: A = πr² = π(14)² = 615.7521601 = 615.75 (2d.p.) then, SA = 2πr² + 2πrh = 2(π(14)²) + 2π(14)(35) = 4310.265121 = 4310.27 (2d.p) A = 4310.27 - 615.75 (because we don't want to lid) = 3694.52 (and that should be yo...

7 years ago

Second one makes sense, first does not. I think it is better to use "the distance" instead of "it" as "it" is indefinite.

7 years ago

hi, i'm not sure if you still need the answer but i'll still try to help. so to work out this question, you must find out how many fans will be packed in 8 hours. you know: 32 fans / hr to find this: = 32 x 8 (multiply by 8 because you have an 8 hour shif...

7 years ago

The answer is I don’t know

5 years ago