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Bart
Questions (61)
An airplane is flying at an altitude of 15,000 ft. The angle of depression from the plane to an observation post (on the ground)
1 answer
274 views
3. Find the radian measure of rotation where a point 3.5 cm from the center of rotation travels 20cm.
<3
1 answer
196 views
5. Find the area of a sector of a circle with a diameter of 8 cm and a central angle that measures 2pi / 3 radians.
1 answer
202 views
An unknown element, X, combines with aluminum to form a compound with the formula Al3X2. What would be the most likely formula
1 answer
456 views
Is the following proposition TRUE or FALSE: If 1 < 0, then 1 + 1 = 3.
2 answers
230 views
Find the sum of 31 + 32 + 33 + ... + 230. Show your work.
3 answers
770 views
In a constant-pressure calorimeter, 65.0 mL of 0.320 M Ba(OH)2 was added to 65.0 mL of 0.640 M HCl. The reaction caused the
2 answers
3,751 views
A hot lump of 25.6 g of aluminum at an initial temperature of 57.4 °C is placed in 50.0 mL of H2O initially at 25.0 °C and
2 answers
3,411 views
a skateboard with a mass of 1.5 kg moves up a quarter pipe to a height of 5.0 meters. How fast was it moving at ground level?
1 answer
561 views
A villain is knocked out of a low-flying aircraft by a heroic scientist-adventurer at an altitude of 370 m. After falling for
0 answers
461 views
A spring (k=302 N/m) placed vertically on a surface has a 548 g ball placed on top of it. How far must the spring be compressed
0 answers
405 views
You spin a spinner that is divided into 6 equals parts once and roll the number cube once. Find the probability that the spinner
1 answer
1,010 views
Two days ago "Steve" helped me with this problem. I am grateful to him. I didn't get it and asked for him to help me again. He
0 answers
902 views
I know the answer to this question is: -1. I got that answer by substituting -1 in for x. Please show me how I should do this
2 answers
434 views
I know the answer to this problem is -1. I found that by substituting for x and seeing if it worked. How should I do it the
3 answers
433 views
You slide your friend with a mass of 65 kg out of the way as they are blocking the exit and keeping you from escaping from
2 answers
609 views
When dealing with imaginary and complex numbers, are there 2 solutions?
I.e.: x^2=4 x=2,-2 For: x^2=-4 x=2i or -2i ? (Is there a
2 answers
517 views
(2v-7)^(1/2)=v-3
4 answers
399 views
(1/(n^2))+(1/n)=(1/(2(n^2)))
2 answers
936 views
(18-n)^(1/2)=(n/8)^(1/2)
2 answers
372 views
(20-r)^(1/2)= r
2 answers
430 views
What is the volume of a rectangle, H= 25 m, L= 100 m, W= 45 m.
1 answer
652 views
What is the volume of a rectangle, H= 25 m, L= 100 m, W= 45 m.
0 answers
301 views
What is the volume of a rectangle, H= 25 m, L= 100 m, W= 45 m.
1 answer
418 views
I do not understand the answer that was given to me on a post dated Nov. 23.
Please help explain my questions that appear at the
1 answer
3,014 views
A baseball is hit with a speed of 27 meters per second at an angle of 45 degrees. It lands on the flat roof of a 13 meter tall
2 answers
1,514 views
A man is camping. He has packed 8 black socks, 8 blue socks, 8 white socks, and 8 gray socks. It is still dark when he gets
1 answer
746 views
the book says Ponyboy,Dally, and Johny saved the kids in the hall way when they were in the church is that true? because in the
1 answer
527 views
A concrete pad has dimensions 9 ft by 9 ft by 4 inches. How many cubic yards of concrete does it contain?
1 answer
1,561 views
Consider a rider on a Ferris wheel which is turning at constant speed. (a) At what point is the upward component of the force of
1 answer
474 views
I do not understand how to figure out probability.
Lee has an urn with 8 white marbles and 10 black marbles. A marble is drawn at
2 answers
925 views
I do not understand how to figure out probability.
Lee has an urn with 8 white marbles and 10 black marbles. A marble is drawn at
0 answers
1,100 views
I am to find the equation of the axis of symmetry and the coordinate of the vertex of the graph of each function. I don't
1 answer
817 views
The U.S. Department of
Defense makes use of statistics in designing weapon systems for tanks and other forms of armor. By
1 answer
554 views
A tractor manufacturing company machines axles to extremely small tolerances. The main power axles have a mean diameter of
4 answers
595 views
There are 30 fish in a pond. We know that 13 of these fish are males, 4 of these males are salmon,
and there are 8 salmon in the
0 answers
521 views
Consider a bowl containing 36 different slips of paper. Ten of the slips of paper each contain one of 16)
the digits from the set
1 answer
607 views
A bag contains 7 red marbles, 2 blue marbles, and 1 green marble. If a marble is selected at random,
what is the probability of
5 answers
5,129 views
I do not know how to figure out his next shot. A basketball player has made 34 of her last 42 freethrow
attempts. What
3 answers
674 views
How many ways can three cars be parked in a row of four parking spaces?
I have no idea how to do this?
4 answers
1,136 views
consider a bowl containing 36 different slips of paper. Ten of the slips of paper each contain one of the set of digits 0
0 answers
508 views
consider the experiment of selecting a card from
an ordinary deck of 52 playing cards and determine the probability of the stated
3 answers
1,384 views
If I am rolling a single dice what is the probability of rolling a number that is divisible
by 2 and 3? The only number divisible
4 answers
1,445 views
I do not understand how to figure this out:
Calculate variance:
4 answers
406 views
Use front-end estimation to find the value of the expression. I do not understand (without adjustment)
687 - 239 (without
5 answers
836 views
Does (-2)^7 = -2^7
1 answer
731 views
(-2)7=-2^7
-2^5 = -2*-2 = 4 * -2= -8 * -2 = 16 * -2 = -32
2 answers
282 views
List all the subsets of S. You may use "C" for chocolate, "V" for vanilla, and "M" for mint. S = {Chocolate, Vanilla, Mint}
I do
1 answer
563 views
I just do not understand how to figure this out.
Find the number of subsets of the given set. {math, English, history, science,
5 answers
1,018 views
Write the negation of the following:
Every rectangle with four equal sides is a square. A) No rectangle with four equal sides is
1 answer
577 views
Not sure if I did this right.
A worker has readings that take minutes each to read and record. How many readings can be completed
2 answers
542 views
Write the numbers in order of increasing size. 0.81, 0.811, 0.888, 8/10, 0.8181
I think it may be 0.888, 8/10, 0.81, 0.8181, 0.81
1 answer
1,138 views
I have no idea how to do this:
Express the ratio in simplest form. 5 yards to 24 feet convert yards to feet: 12 x 5 = 60 ft.
3 answers
781 views
The 18th hole at the Riverwoods Golf Course is 441 yards long. How long would it be on a model with a scale of 2.5 inches to 100
3 answers
821 views
I do not understand how to decide which method would you use to determine whether this proportion is true or false? 19/6=4/27
2 answers
570 views
A 6-pack of 4oz containers of yogaurt costs 2.99. what is the unit price in cents per ounce? Round to the nearest hundredths of
5 answers
1,451 views
I was thinking that I have to multiply but that doesn't make sense. However, I am terrible at story problems.
A child's dose of
3 answers
629 views
What's wrong with the following sentence?
He was in trouble for acting like a tomfoolery.
1 answer
1,009 views
Sharon was palying darts. She threw six darts and all of them hit the target. Which of the following could be her score?
The
2 answers
1,612 views
Sharon was playing darts. She threw six darts and all of them hit the target. Which of the following could be her score?
The
1 answer
1,199 views
how would you state Ag2CrO4 acting as a cathode?
1 answer
634 views
