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Post New Question
All Questions
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234927 Questions
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384
1
+4
Solar System Question
Figure out how fast our solar system is going around the galaxy and then compare that with how fast earth is going around the sun.
I can't use a calculator or Google. The only info I have is that the galaxy is 100,000 lightyears across, it
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ninjatutuy21
Oct 2, 2021
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189
0
Sequence problem
Let $a_n = 4n^3 + 6n^2 + 4n + 1$. Find $a_1 a_2 a_3 a_4$.
Guest
Oct 2, 2021
Oct 1, 2021
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344
1
Reposted
Find the remainder when the sum is divided by 10.
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Guest
Oct 1, 2021
0
321
1
For how many integers, n with 1<=n<=20 is the tens digit of n^2 odd?
For how many integers, n with 1<=n<=20 is the tens digit of n^2 odd?
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Guest
Oct 1, 2021
0
330
1
pls help asap!
In the figure below, $D$ is a point on segment $\overline{CE}$ such that $\overline{AD}\parallel\overline{BE}$ and $A$ is not on $\overline{BC}.$ Line segments $\overline{AD}$ and $\overline{BC}$ intersect at $P.$ [asy] size(4cm); pair C = (0,0); pair D
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Guest
Oct 1, 2021
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267
2
Help
Find the remainder when the sum is divided by 10.
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Guest
Oct 1, 2021
0
391
2
Percent
A mixture is 25% red paint, 30% yellow paint, and 45%water. If 4 quarts of red paint are added to 20 quarts of the mixture, what is the percentage of red paint in the new mixture?
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Guest
Oct 1, 2021
0
658
1
Coin flip question. Permutations and Combinations
A fair coin is flipped 10 times. What is the probability that neither heads nor tails shows up twice in a row? Express your answer as a common fraction.
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Guest
Oct 1, 2021
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356
1
Inequality
Solve the inequality 2x - 5 <= -x + 12. Give your answer as an interval.
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Guest
Oct 1, 2021
0
255
6
PLEASE HELP ASAP
In right triangle, ABC, the length of side AC is 8 the length of side BC is 4 and C is 90 degrees The circumcircle of triangle ABC is drawn. The angle bisector of ACB meets the circumcircle at point M Find
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Guest
Oct 1, 2021
0
334
1
Roots
If one zero of the polynomial 3x^2 + 12x - k is reciprocal of the other , then find the value of k.
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Guest
Oct 1, 2021
0
359
1
Algebra
During an amorous struggle, the lady's pearls broke. Half of the pearls fell onto the floor; a fourth rolled under a chair; a sixth fell into her lap; and three pearls remained on the strand. How many were there originally on the strand?
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Guest
Oct 1, 2021
0
340
2
algebra
Mark has $50 in his bank account. He is saving $30 each month to buy a limited edition PS4 that costs $400. Which best describes the y-intercept in this situation?
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Guest
Oct 1, 2021
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284
1
Pls help
The table shows the prices of the tickets for a charity performance
Type of ticket Price per ticket Adult $20
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Guest
Oct 1, 2021
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274
2
Please help with explanation. Thank you very much
Zoe uses 1/3 of her money to buy a dress and 1/4 of the remaining
amount to buy some magazines. After that, she uses 2/5 of the rest
of the money to buy a present.
If she has $54 left, how much money did she spend on the magazines?
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Guest
Oct 1, 2021
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406
1
Arithmetic sequence
Find the 83rd term of the arithmetic sequence -23, -26, -29
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Guest
Oct 1, 2021
+1
350
1
HOW TO SOLVE?
HELP ME PLS
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Guest
Oct 1, 2021
0
380
2
WHY DO RADICALS AND DISTRIBUTIVE PROPERTY HAVE TO BE SO HARD
What do we multiply (4√3 - 2√5) by to get (4√3) ³ - (2√5) ³?
HELPPPPP!!!!!
aAAAAAHHHHH!!
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Guest
Oct 1, 2021
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222
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System
find the value of k for which the system of equations has a unique solution 2x+ky-9=0 , kx+3y-13=0.
Guest
Oct 1, 2021
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341
2
Geometry
In trapezoid PQRS, Base PQ is parallel to base RS. Let point X be the intersection of diagonals PR and QS. The area of triangle PQX is 20 and the area of triangle RSX is 48. Find the area of trapezoid PQRS
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Guest
Oct 1, 2021
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330
1
help coordinates
Let C be the circle with equation x^2+2y-9=-y^2+28x+19. If (a,b) is the center of C and r is its radius, what is the value of a+b+r?
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Guest
Oct 1, 2021
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351
1
help with system
One ordered pair (a,b) satisfies the two equations ab^4 = 384 and ab^5 = 4608. What is the value of a in this ordered pair?
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Guest
Oct 1, 2021
0
435
3
+80
How to do?
Jack and Paul shared the total cost of a present for their father. Jack paid $48 more than 2/11 of the cost of the present. The ratio of the amount paid by Jack to the amount paid by Paul was 1:3. How much more did Paul pay for the present than Jack?
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KINGVONOTF
Oct 1, 2021
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315
0
+70
herlp pls
The monthly cost (in dollars) of water use is a linear function of the amount of water used (in hundreds of cubic feet, HCF). The cost for using 14 HCF of water is $32.42, and the cost for using 26 HCF
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Skatergoat
Oct 1, 2021
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