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Post New Question
All Questions
+0
234927 Questions
0
391
1
Hard.
Find all values of $c$ such that $3^{2c+1} = 28\cdot 3^c - 9$. If you find more than one value of $c$, then list your values in increasing o
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Guest
Jul 12, 2020
+1
406
1
+5
שאלה בטריגו
אם 2 צלעות במשולש ישר זווית הם מול: 3.35 וליד 7.43 כמה שווה הזווית טנגס?
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avital
Jul 12, 2020
0
440
0
+81
nobody helped me last time :(
https://web2.0calc.com/questions/let-s-be-the-set-of-all-positive-integers-that-have
toodlestraws
Jul 12, 2020
0
489
1
need help with line
What is an equation of the line that is perpendicular to y + 1 = -3(x - 5) and passes through the point (4, -6)?
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Guest
Jul 12, 2020
0
486
1
help on division
I have tried and tried to get this correct. Can anyone help me out and show me how you got the answer
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Guest
Jul 12, 2020
0
333
0
geometry
Find the missing side length
Guest
Jul 12, 2020
0
445
1
please help
At the beginning of an experiment, a scientist has 356 grams of radioactive goo. After 210 minutes, her sample has decayed to 44.5 grams. Find a formula for G ( t ) , the amount of goo remaining at time t . Keep at least 5 decimal places.
read more ..
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Guest
Jul 12, 2020
0
2027
1
line equation
Find the equation of the line that passes through (-1,3) and is perpendicular to 2y=x−1. Leave your answer in the form y=mx +c
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Guest
Jul 12, 2020
0
488
1
need help with geometry
Four enclosed arcs produced with the same radius are inscribed in such a way, as shown in the image below.
What percentage of area is the green area, compared to the square, when s = 10?
read more ..
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Guest
Jul 12, 2020
0
681
1
can anyone help?
Gwen is travelling to another country. She flies for 3 hours at an average speed of 625 km/h on one plane. She then flies for 4 hours 15 minutes at an average speed of 880 km/h on a second plane. What is the total distance, in km, she travelled by plane?
read more ..
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Guest
Jul 12, 2020
+1
926
3
+288
Functional Equation
The function satisfies
for real numbers and .. Find all possible functions .
I've found that and if is not then I'm just stuck and
read more ..
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madyl
Jul 12, 2020
0
482
1
geometry
Find the missing line segment.
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Guest
Jul 12, 2020
0
516
1
geometry
Find the missing line segment.
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Guest
Jul 12, 2020
0
460
1
please help with this
Find total cost of the kitchen tiles
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Guest
Jul 12, 2020
0
1811
2
$81^x = 64$. What is $27^{x+1}$?
$81^x = 64$. What is $27^{x+1}$?
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Guest
Jul 12, 2020
0
509
1
can u help
If the rectangular faces of a brick have their diagonals in the ratio 3 : 2 \sqrt{3} : \sqrt{15}, what is the ratio of the length of the shortest edge of the brick to that of its longest edge?
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Guest
Jul 12, 2020
0
423
1
please help
Can someone help me solve (a) and (c) pls.
Thanks
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Guest
Jul 12, 2020
0
346
0
someone pls help
The diagram shows a circle with a
circunference of 88 cm and a sector of a circle.
Khairul uses the circle and the sector
to form a right cone with the height of 15 cm Calculate the volume, in cm of the cone formed.
read more ..
Guest
Jul 12, 2020
+1
1198
2
+171
?????
Jennifer rode her bike at 12 miles per hour for 4 hours, then put her bike down and began walking at 3 miles per hour. Thomas started walking at 4 miles per hour along the same path at the same time that Jennifer started biking. When he reached the bike,
read more ..
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BillyBobJoeJr
Jul 12, 2020
0
519
1
+171
HELP PLEASE HARD QUESTION
The value of the expression
is for some positive integer k. What is k?
read more ..
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BillyBobJoeJr
Jul 12, 2020
0
532
1
counting and probability, number theory question. help!
The three-digit number is divisible by 3. How many different three-digit numbers can represent?
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Guest
Jul 12, 2020
0
390
1
digits
\
Solve the cryptogram above, where A,B,C,D and E are not necessarily distinct digits. Submit your answer as the 5-digit integer ABCDE.
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Guest
Jul 12, 2020
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