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All Questions
+0
232866 Questions
+4
512
1
+365
PLEASE HELP ASAP
Find all y which does NOT satisfy
Express your answer in interval notation.
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imdumb
Jul 5, 2020
0
427
1
help with counting
Coach Martin needs to pick a team for the annual Mathletes competition for this year. There are 36 tryouts for the team, 22 boys and 14 girls. Coach says that he needs a team of 4, consisting of 2 boys and 2 girls.
How many different teams can be
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Guest
Jul 5, 2020
0
405
1
please help
In a class of 60, where there are twice as many girls as boys, Kamal is ranked 17th from the top. There are 9 girls ahead of him in the ranking. How many boys are after him?
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Guest
Jul 5, 2020
0
488
2
help
Compute
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Guest
Jul 5, 2020
0
484
1
help
N is an integer whose representation in base b is 777. Find the smallest positive integer b for which N is the fourth power of an integer.
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Guest
Jul 5, 2020
0
500
1
help!
The value of the numerator of a particular fraction is one-half the value of its denominator. If the numerator is increased by and the denominator is decreased by , the value of the resulting fraction is . What is the denominator
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Guest
Jul 5, 2020
0
617
1
+174
Helpppp
Find the units digit of the following within the indicated number base:
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Forumofweb2.0cal
Jul 5, 2020
0
442
1
help
Calculate
Note: denotes the floor function
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Guest
Jul 5, 2020
0
376
1
54+65-12=?
54+65-12=?
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Guest
Jul 5, 2020
0
660
1
+6
Need the answer asap and the show the work too ASAP!
A boat is 130 m from the base of a cliff. The cliff is 80 m high. Determine, to the nearest degree, the angle of depression of the boat from the top of the cliff.
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SONOFJUPI
Jul 5, 2020
0
518
2
help with geometry
There are two circles, one with center A and radius 1, the other with center B and radius 2. The distance AB is 6. A third circle of unknown radius is tangent to both of these circles and there exists a straight line which
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Guest
Jul 5, 2020
0
480
1
help
A spherical orange is cut about the vertical axis into 8 equal slices as shown above.
What is the ratio of the total surface area of the 8 slices to that of the original orange?
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Guest
Jul 5, 2020
0
651
1
i need the answer and shown work because i dont know anything about this
Two office towers are directly across the street from each other. The smaller tower is 40 m tall. The angle of elevation from the top of the smaller tower to the top of the larger tower is 21o. The angle of depression from the top of the smaller tower to
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Guest
Jul 5, 2020
0
567
1
help
A doctor's age 8 years ago is two-thirds his age 13 years hence. How old is he now?
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Guest
Jul 5, 2020
0
525
2
help
A lattice point is a point whose coordinates are integers. How many lattice points are strictly inside the triangle formed by the points (0,0), (0,7), and (8,0)?
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Guest
Jul 5, 2020
0
649
1
i need the answer and the show your work please
Two buildings are 200m apart. From a point midway between them, the angles of elevation to the top of each building are 12o and 9o respectively. To the nearest tenth, how much taller is one building compared to the other?
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Guest
Jul 5, 2020
0
366
1
please help
If you write all the whole numbers upto 100000, the number of times you write the digit '1' is A and the number of times you write the digit '2' is B. what is the value of A-B ?
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Guest
Jul 5, 2020
0
361
1
help
How many 3-digit numbers contain the digit 9?
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Guest
Jul 5, 2020
0
689
1
Need help
A boat is 130 m from the base of a cliff. The cliff is 80 m high. Determine, to the nearest degree, the angle of depression of the boat from the top of the cliff.
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Guest
Jul 5, 2020
0
411
1
help
Given that in a room there is an amoeba (only one) and it duplicates itself every second and will fill the entire room in 1 hour. When (in seconds) will the amoebas fill up half the room?
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Guest
Jul 5, 2020
0
447
3
Some help plz?
M is the midpoint of PQ and N is the midpoint of PR, and O is the intersection of QN and RM, as shown. If QN is perpendicular to PR, QN = 12, and PR = 14, then find OR.
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Guest
Jul 5, 2020
0
557
2
complex numbers
Find all complex numbers z such that
I can't write sqrt(i), so I don't know what the answer is.
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Guest
Jul 5, 2020
0
458
2
help
Given a, b, c, d are four distinct natural numbers that satisfy the system of equations above.
Determine the value of a+b+c+d.
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Guest
Jul 5, 2020
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