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All Questions
^{+0}
211723 Questions
0
88
1
How to calclate
sin(a)+cos(a) if tg(a)=3/4
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Guest
Jan 16, 2022
0
72
0
help counting
Find the number of ordered pairs $(a,b)$ of integers such that $|a + bi| \le 8.$
Guest
Jan 16, 2022
0
76
1
Probability
3 cards are chosen at random from a standard 52-card deck. What is the probability that they can be arranged into a group of three consecutive cards, all of the same suit? For this problem, an Ace can either come before a 2 or after a King, but not both
read more ..
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Guest
Jan 16, 2022
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89
1
help inequality
Let a be the smallest integer satisfying the inequality x^2 - 15 < 12x, and let b be the largest integer satisfying the same inequality. What is b-a?
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Guest
Jan 16, 2022
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61
0
help coordinates
What is the sum of all numbers a for which the graph of y=x^2+a and the graph of y=2ax intersect one time?
Guest
Jan 16, 2022
0
59
0
Quadratic
The graph of the quadratic y = ax^2 + bx + c has the following properties: (1) The maximum value of y = ax^2 + bx + c is 5, which occurs at x = 3. (2) The graph passes through the point (0,8). If the graph passes through the point (4,m), then
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Guest
Jan 16, 2022
0
79
3
Decimals
What numeral is in the 100th decimal place in the decimal representation of ?
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Guest
Jan 16, 2022
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86
1
+4
Geometry
Find X if m < GHU = 60º
m < GHI = 12x +1,
and m < UHI = -11+8x.
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Kenrich137
Jan 16, 2022
0
78
1
+53
Help please
Courtney is making chocolate milkshakes for Savannah's birthday party. There will be fourteen people at the party. It takes a third of a cup of milk to make one chocolate milkshake. How many cups of milk will it take to make fourteen milkshakes?
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Sturasion12345
Jan 16, 2022
0
86
2
+53
help asap
Although playing chess doesn't intrigue John, he agreed to play a few games with Anthony. Anthony has a real knack for the game and easily defeated John every time they played. The first game lasted one-fourth of an hour. The second game took a
read more ..
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Sturasion12345
Jan 16, 2022
0
91
1
+107
It’s hard
Brian has a challenging training regimen. He trains for two hours every other day. Out of these two hours he jogs for 13 minutes, stretches for 6 minutes, sprints for 3 minutes, rides a bicycle for 8 minutes, and
read more ..
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Ticon6
Jan 16, 2022
0
102
1
Algebra
What real value of t produces the smallest value of the quadratic t^2 -12t - 36 + ?
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Guest
Jan 16, 2022
0
111
8
+107
math
Tom has 8 cubes. Eva has half as many cubes as Tom. How many cubes do they have in total?
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Ticon6
Jan 16, 2022
0
83
1
Time
Our teacher wanted our class to write a story about our daily as a citizen. Cameron spent a lot of time writing his story. He spent 48 minutes on Tuesday, 14 minutes on Wednesday, 1 hour and 27 minutes on Thursday, and finally finished on Friday after spending
read more ..
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Guest
Jan 16, 2022
0
76
1
Math
A piece of peanut butter fudge costs 33 cents. April has 2 dimes and 3 pennies. How many more Pennie's does she need to make 33 cents?
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Guest
Jan 16, 2022
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58
0
Domain
Let f(x) = x^2 + 2x + 5. If the domain of f is all real numbers, then f does not have an inverse function, but if we restrict the domain of f to an interval [c,\infty), then f may have an inverse function. What is the smallest value of c we can use here,
read more ..
Guest
Jan 16, 2022
Jan 15, 2022
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90
3
geometry
Let abc be a triangle and d be a point on ac such that ab = bd = cd. given that angle bac is degrees, find angle abc
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Guest
Jan 15, 2022
+1
125
15
Triangle
In triangle PQR, PQ=13 , QR=14 , and PR= . Let M be the midpoint of QR . Find PM.
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Guest
Jan 15, 2022
+1
136
2
+31
Strange property of fibbinary numbers - proof
A fibbinary number is a number whose binary representation contains no consecutive s.
Prove that the number of non-negative fibbinary numbers less than or equal to is always .
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ibhar
Jan 15, 2022
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64
0
Complex Numbers
Find all complex numbers z such that |z - 3| = |z + i| = |z - 1 - 2i|.
Guest
Jan 15, 2022
0
97
1
help plz
For how many integer values of a does the equation
x^2 + ax + 8a = 3x + 4
have integer solutions for x?
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Guest
Jan 15, 2022
0
58
0
Proportion
The square of a and the square root of b vary inversely. If a = 2 when b = 81, then find b when ab = 81a .
Guest
Jan 15, 2022
0
88
1
Mathematics
Mr. James works a basic week of 40 hours at a rate of $1,600 an hour. His overtime rate is $400 per hour MORE than his basic rate.
Calculate:
1. His total wage for a basic week.
read more ..
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Guest
Jan 15, 2022
0
93
1
Number Theory
How many different prime numbers divide evenly into $40^4-19^4$?
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Guest
Jan 15, 2022
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