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Post New Question
All Questions
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233058 Questions
+1
1343
9
Twelve new students are standing in a line. How many different ways can the first seven students in line order themselves?
Twelve new students are standing in a line. How many different ways can the first seven students in line order themselves?
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Guest
Jul 7, 2020
+2
1046
2
+256
~ Please Help!~ Math Question...
In 36 years Adam's age will be 2.5 times his current age. How many years old is he now?
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MathWizPro
Jul 7, 2020
0
423
1
help
If , what is ?
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Guest
Jul 7, 2020
0
538
3
number theory
Find the last digit of
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Guest
Jul 7, 2020
0
439
1
Geometry question
a cylinder with a hole in the shape of a rectangular prism going through the center of it. The radius is 10 yards. A three-dimensional cylinder is shown with a hole in the shape of a rectangular prism going through the center of it. The height of the cylinder
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Guest
Jul 7, 2020
0
487
1
help please
Count the total number of 3×2 rectangles in the 5×5 grid above.
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Guest
Jul 7, 2020
0
611
1
+334
help
The expression $x^2 + 13x + 30$ can be written as $(x + a)(x + b),$ and the expression $x^2 + 5x - 50$ written as $(x + b)(x - c)$, where $a$, $b$, and $c$ are integers. What is the value of $a + b + c$?
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Rayjplayz
Jul 7, 2020
-1
547
1
+334
halp!
A large rectangle has side lengths of $(x+7)$ and $(x+5)$. In the large rectangle, there is a rectangular hole with side lengths of $(2x-3)$ and $(x-2)$. What is the area of the large rectangle (not including the area of the hole)? Express your answer as
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Rayjplayz
Jul 7, 2020
0
466
1
help
A father is 4 times his son's age. And in 30 years son's age will be half of his father's age. How old is the father?
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Guest
Jul 7, 2020
0
906
2
+21
Please help thank you
A train traveling at 100 km an hour takes 3 seconds to enter a tunnel and an additional thirty seconds to pass completely through it. Find the length, in kilometers, of the train. Express your answer as a common fraction. Thank you so much!!!!!
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nimimimi
Jul 7, 2020
0
434
1
help
A mother asked her daughter to type a manuscript. The daughter claimed: " I will type an average of 20 pages a day."
She typed the first half of the manuscript rather lazily, at 10 pages a day. To make up for it, she typed the second half at 30
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Guest
Jul 7, 2020
0
340
3
Help
If a 60-foot piece of wood is divided in the ratio 3:4:5, the result is
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Guest
Jul 7, 2020
0
1068
2
question
Three faces of a right rectangular prism have areas of 48, 49 and 50 square units. What is the volume of the prism, in cubic units? Express your answer to the nearest whole number.
thx
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Guest
Jul 7, 2020
0
336
0
help
Imagine a rectangle. Keeping the base firm, if you slide the rectangle from the top to make a parallelogram so that its area is exactly half of that of the rectangle (with same dimensions), what would be the smaller angle of that parallelogram in degrees?
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Guest
Jul 7, 2020
0
490
2
help
Find all values of t such that
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Guest
Jul 7, 2020
0
446
1
help
Hannah is 7 years older than Tim was 2 years ago. If Tim is half of Hannah's age at present, then how old is Hannah now?
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Guest
Jul 7, 2020
0
776
3
Help!
The width, length, and height of a rectangular prism are each increased by 10%. What is the percent increase in the volume of the prism? Express your answer to the nearest whole number.
Thank you in advance
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Guest
Jul 7, 2020
+1
950
3
help
Given that AB=12, CD=1, angle BAC=90∘, and the semicircle is tangent to BC,find the radius of the semicircle.
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Guest
Jul 7, 2020
+4
529
1
+365
PLEASE HELP ASAP
Find the set of all z such that neither 2+z nor 2-z is in the interval (-1,1]. Express your answer as an interval or as a union of intervals.
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imdumb
Jul 7, 2020
0
462
1
help
Find r if 1/r + 1 + r + r^2 + r^3 + ... = 4/r.
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Guest
Jul 7, 2020
0
403
2
Help Please!
Let x and y be integers. Show that 9x + 5y is divisible by 19 if and only if x + 9y is divisible by 19.
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Guest
Jul 7, 2020
0
401
0
plz help
if
where what is the value of N?
Guest
Jul 7, 2020
0
341
0
algebra
If a/b + b/a = 1, then find the value of a^3 + b^3.
Guest
Jul 7, 2020
+1
598
1
+93
holp plz
My street hockey team plays three games each week. My team lost all 12 games in the first four weeks. Then, my team won two games and lost one game in the fifth week, bringing our record to 2 wins and 13 losses. Each week after that, my team won two games
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stuckonmyproblem
Jul 7, 2020
0
305
0
please help
How many rectangles are in this figure?
Guest
Jul 7, 2020
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