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Post New Question
All Questions
+0
237644 Questions
-1
1655
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Help
Help
The radioisotope radon-222 has a half life of 3.8 days. How much of a 73.9 g sample of radon-222 would be left after approximately 23 days?
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NotSoSmart
May 25, 2018
0
961
1
Which of the following statements are true of F?
photo
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Guest
May 25, 2018
0
986
2
Trig identities
How would one solve this?
[(1+tan(x))/sin(x)]-sec(x)=csc(x)
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Guest
May 25, 2018
0
723
2
geometry help please!! thanks
thanks for the help[
Omi67
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Guest
May 25, 2018
0
416
0
PLEASE GEOMETRY HELP! THANKS
thank you so much whoever knows this i appreciate it
Guest
May 25, 2018
0
1081
1
number theory
What is the value of the least base ten number which requires six digits for its binary representation?
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Guest
May 25, 2018
0
3717
2
+166
Help please (3 question)
What is the sum of all positive integers that have twice as many digits when written in base $2$ as they have when written in base $3$? Express your answer in base $10$.
read more ..
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Creeperhissboom
May 25, 2018
0
576
0
+361
can someone help please.
https://web2.0calc.com/questions/1-in-a-certain-country-the-probability-that-a-baby
Hev123
May 25, 2018
0
590
0
+361
Can I get help please!
https://web2.0calc.com/questions/create-a-probability-distribution-table-from-the
Can I get help please!
Hev123
May 25, 2018
May 24, 2018
0
1905
1
geometry
A delicious circular pie with diameter 12 cm is cut into three equal-sized sector-shaped pieces. Let l be the number of centimeters in the length of the longest line segment that may be drawn in one of these pieces. What is l^2?
read more ..
MaxWong
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Guest
May 24, 2018
+1
804
0
+212
Question
Connor wants to use the Fermi process to estimate the number of oranges that would fill his kitchen. As part of the process, he needs to estimate the volume of a typical orange. The diameter of an orange is about 3 in.
Which estimate
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lysxsa
May 24, 2018
0
2999
2
REPOST Let $y=(0.\overline{12})+(0.\overline{345})$. When $y$ is written out as a repeating decimal, what is the sum of the digits in a sing
Let . When is written out as a repeating decimal, what is the sum of the digits in a single repeating period? (In other words, what is the sum of the digits covered by the repeat bar?)
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Guest
May 24, 2018
+1
2932
3
I am thinking of two numbers in the ratio . The difference between the two numbers is . What is the sum of the two numbers?
I am thinking of two numbers in the ratio . The difference between the two numbers is . What is the sum of the two numbers?
heureka
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Guest
May 24, 2018
-1
4244
6
please help!
To get from her home to a friend's house, Georgia must go past a school, then a post office:
Signs tell Georgia that the distance she walks from home to the school is mile, and the distance from the school to the post office is mile.
The
read more ..
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Guest
May 24, 2018
+2
999
1
+63
Prime Number
What is the smallest prime number that divides exactly into 312+513+714+1115?
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chmy426
May 24, 2018
0
773
1
+212
multiple choice
opitions for first blank are 2 ,4 ,7 ,11
opitions for second blank are - right or left
read more ..
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lysxsa
May 24, 2018
+1
910
1
+63
Sequence
In the sequence of numbers 1, 4, 3, ... each term after the first two is calculated as the term preceding it minus the term preceding that. So, for example, the third term is the second term minus the first term, i.e. 3 = 4 - 1. What is the sum of the first
read more ..
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chmy426
May 24, 2018
+1
951
2
+212
The equation of a parabola is given.
The equation of a parabola is given.
y=1/2x^2+6x+24
read more ..
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lysxsa
May 24, 2018
0
791
1
+212
Question
The equation of a parabola is given.
y=3/4x^2−6x+15
read more ..
ChowMein
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lysxsa
May 24, 2018
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