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Post New Question
All Questions
+0
231386 Questions
0
478
1
+126
help!
Thirty-one students who write a contest get all the integer grades from 70 through 100, with different students getting different grades. When one particular score is removed, the average of the 30 remaining scores is the same as the average of all 31 scores.
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thedudethatneedshelp
Sep 12, 2020
0
542
2
need help
Solve xz = 585, xy = 182, yz = 630.
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Guest
Sep 12, 2020
0
331
1
AoPs thanks 4 help
If $x$ is an element of the set $\{ -1, 1, 2 \}$ and $y$ is an element of $\{ -2, -1, 0, 1, 2 \}$, how many distinct values of $x^y$ are positive?
HELLO?
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Guest
Sep 12, 2020
+1
587
1
+126
plz help :(
The price of a TV (before tax) is a whole number of dollars and is the same in Alberta and in BC. That tax is 7% in Alberta and 15% in BC. After the tax is applied the TV costs $10 more in BC than in Alberta. What is the before-tax price (in dollars) of
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thedudethatneedshelp
Sep 12, 2020
0
304
1
please help
What is the units digit of 123^(123)?
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Guest
Sep 12, 2020
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704
1
geometry homework
The napkin ring pictured is to be resilvered. How many square millimeters must be covered in terms of pi?
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Guest
Sep 12, 2020
0
334
0
problema de matematica
en la fabrica de tornillo se retiran para el reparto 100 paquetes cada dia. se inicia con 1500 paquetes cuanta cantidad iran quedando cada dia por diez dia
1 dia
2dia
3dia
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Guest
Sep 12, 2020
0
547
2
+614
please help alg 2 transformations
using he given parent function,, sketch the following graphs. parent function g(x)
1.y=g(x+1)
2.y=g(x)-5
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xxJenny1213xx
Sep 12, 2020
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285
0
what is the class limit of 46-53
what is the class limit of 46-53
I don't know how to calculate it, please help.
Guest
Sep 12, 2020
0
1
1297
6
triangle
given a right-angled triangle with perimeter 18. The sum of the squares of the three side lengths is 128. What is the area of the triangle ?
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Guest
Sep 12, 2020
+1
422
1
help plz explain Melody or CPhill
Find all complex numbers z such z^4 = -4.
Note: All solutions should be expressed in the form a +bi, where a and b are real numbers.
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Guest
Sep 12, 2020
0
1208
1
+10
Prealgebra Help
The teacher asked Jenny's class to solve the equation . Jenny copied the coefficient of on the right-hand side incorrectly and wrote down a different equation. Jenny correctly determined that her equation had no solutions. What was the coefficient
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PencilKnot
Sep 12, 2020
0
1115
1
help with geometry
In the figure shown, suppose m angle ABC=n and m angle ABD=2(m angle DBC). The angle bisector of angle DBC is BE. What is m angle EBC
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Guest
Sep 12, 2020
0
1003
1
A number to the 8th power divided by the same number to the 5th power equals 512. What is the number?
Dose anyone now the answer
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Guest
Sep 12, 2020
0
457
1
plz help cal
If 1-cos(angle) / sin(angle) = sqrt3 / 3,
what is angle? show proof
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Guest
Sep 12, 2020
0
414
1
please someone hlp
The slope of line a is triple the slope of line b. The slope of line c is half of the slope of line b. The slope of line d is 3 less than quadruple the slope of line c.. The equation of line a is 3y-36x=24. What is the slope of line c?
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Guest
Sep 12, 2020
0
510
1
help pleez!
In the diagram below, If BD is perpendicular to AC, AD=BD and BC = 2BD, find the measure of angle ABC
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Guest
Sep 12, 2020
0
669
1
+1443
Please help!
There are 3 consecutive integers. 4 more than the smaller number plus twice the 3rd number is 7 less than the 2nd number. Find the smallest integer of the 3 consecutive integers.
a) x = -1
b) x = -9
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SmartMathMan
Sep 12, 2020
0
685
1
help
Third question. Consider 10 days. If I give you 1 candy on the first day, and each day I give you twice more candies than the previous day, how much candies will I give you on day number 10?
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Guest
Sep 12, 2020
0
570
1
+1443
I don't know how to answer this. What is the largest integer? Is it -12? I keep getting x = 0.
The sum of four consecutive even integers is -12. Find the largest number.
a) x = 0
b) x = -6
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SmartMathMan
Sep 12, 2020
0
449
1
Is f(x) invertible? Please explain?
Is f(x) invertible? Please explain?
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Guest
Sep 12, 2020
0
361
1
algebra
Two persons A and B have a total sum of $320 dollars. First, A gives 20% of what he has to B. Then B gives 20% of what he now has back to A . If the ratio of the final amount of person
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Guest
Sep 12, 2020
0
434
1
circle
Find the radius of the following circle
x^2+16+y^2-4y+16=0
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Guest
Sep 12, 2020
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