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Quidditch
Answers (512)
You are correct!
Where is the energy stored in a flashlight?
I think that the semicolon (;) should be deleted in your line: if (a == b) System.out.println(a*b);
You are correct!
Yes, you got it! 49 = 49
No, D is not correct. (7*7*7*7)=? (7*7)=? Divide the 4 7s multiplied by the 2 7s. What do you get
What did you get when you calculated 7^4/7^2
You're welcome!
Yes, you got it! 5^0=1
You are correct on 1. The answer is c. You are not correct on 2.
What did you get when you converted the weight to kg?
Correct!
oops... I meant amps.
Your are correct! current for 40 volts across 12 ohms: 40V/12 ohms=3.33 smps
2.5 times $4.00 is the cost to make 1 tent. So, what would it cost to make 4 tents?
The first equation has y=10-2.2x Substituting that value for y into the second equation: 5x + (10-2.2x)=70 5x + 10-2.2x=70 combining... 2.8x=60 x=? Plug that value for x into the first equation to find y.
When you multiplied the second equation by 2 your result is wrong. It should be: 6x + 12y=52 NOT: 6x-12y=52
30% of 200,000 is NOT 6000
Looks good!
Try multiplying by a/a.
Don't forget to think about negative numbers here. What negative numbers would give you a correct answer?
Both answers are correct!
Looks good!
You have the right idea. one revolution is 2(pi) radians. Converting revolutions to radians: R=revolutions Revolutions in Radians=R*2(pi) So, to convert 2.8 revolutions/sec to radians =2.8(2)(pi)/sec
With the values given, I did not find any of the answers on the graph. For a distance vs time graph. X axis is time and Y axis is distance. at t=6s, dist=5m at t=8s, dist=6m at t=10s, dist=7m at t=12s, dist=8m I don't see any of those as choices.
For problem 2, I got A, x=-1.
C is the answer I got.
Problem 1. Look at my calculation, the average rate is +12,not a negative number.
For a distance vs time graph. X axis is time and Y axis is distance. at t=6s, dist=5m at t=8s, dist=6m at t=10s, dist=7m at t=12s, dist=8m I don't see any of those as choices.
Problem 1 A is not the answer. f(4)- f(1) =11 - (-1) = +12 -------------- Problem 3. C looks correct
Problem 2. The answer is not B, (x=0).
Problem 1. The answer is NOT D. The average rate of change is: for x=1, f(1)=-3 for x=4, f(4)=-3 Average rate of change is 0, not a negative number. One of the answers does give a negative average rate of change.
Yes, that's what I got, also.
That's correct!
Let B = the "break even" number of books. Production costs=$76,322 + B * $10 Total Sales = B * $25.50 Setting these equal... Total sales = Production costs or... $76,322 + B * $10 = B * $25.50 Solve for B
slope = rise/run. For a slop of 0.4 0.4 = rise/130 Solve for rise. It looks like you have accidentally moved the decimal in your line: .040=rise
Let D = the number of dimes. So, D + 9 = the number of nickels. Adding... D * 10 + (D + 9) * 5=135 combining 15 * D + 45 = 135 15 * D = 90 Divide both sides by 15 D = 6 There are six dimes. So, the number of nickels is 6 + 9 = 15
The time is takes to slow down is T2 - T1. That is given as 3.0s.
The best way to check is to substitute your answer back into the equation. SQRT(2x+1)-5=8 SQRT( (2*84)+1)-5=8 SQRT(168+1)-5=8 SQRT(169)-5=8 13 - 5 = 8 8 = 8 You are correct!
Adding the items gives $460 The tax on that at 5.5% =0.055*$460 =? Add the tax to the cost of the items. That value is one of the choices given.
-5+2*SQR(12) =-5+2*SQR(4*3) =-5+2*SQR(4)*SQR(3) =-5+2*2*SQR(3) =-5+4*SQR(3)
My Alt+251 keyboard did not post as a square root--reposting...
You got the right answer! It just needed to be reduced. -5 + 2*�ã(12) =-5+2*�ã(4*3) =-5+2*�ã4 * �ã3 =-5+2*2*�ã3 =-5+4*�ã3
Check part b comments on your previous post.
Using that... Y=14.47m/s(2.2s)-(1/2)(9.8m/s)(2.2)^2 Y=31.834m - 23.716m =8.118m So it clears the wall by 8.118m - 6.7m =1.418m
I get 14.47m/s for Vy.
I calculated the ball was thrown at a speed of 18.12m/s. Vx is 24m/2.2s=10.91m/s Vx=V(cos(53)) That gives V as 18.12m/s
Sorry, I see that was given.
