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All Questions
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232884 Questions
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338
2
Thelma invested 50,000
Thelma invested 50,000 in 3 different investments, at 6%, 7% and 9%, with 10,000 more in 9% than in 6%. If at the end of one year she received interest of $3,950 on her investments, how much did she invest in each of her 3 investments?
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Guest
Nov 14, 2020
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436
3
Geometry Question I'm Confused
is the incenter of . We have , , and Find
https://latex.artofproblemsolving.com/7/f/4/7f44a10a26ba1dea8f8b075f1d8c5e463ef1d307.png
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Guest
Nov 14, 2020
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450
1
Suppose that A and B are digits in base d > 6 such that
Suppose that A and B are digits in base d > 6 such that AB_d + B_d = 46_d. Find A and B.
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Guest
Nov 14, 2020
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410
1
Find the largest prime number (in decimal form) that divides the sum
Find the largest prime number (in decimal form) that divides the sum
1_2 + 10_2 + 100_2 + 1000_2 + 10000_2.
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Guest
Nov 14, 2020
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448
1
hen Lauren was born on January 1, 1990
When Lauren was born on January 1, 1990, her grandparents put $1000 in a savings account in her name. The account earned 7.5% annual interest. To the nearest dollar, how much money was in her account when she turns two?
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Guest
Nov 14, 2020
0
833
1
math
A diver at the top of a 10-meter high platform, preparing to perform a dive. The diver's height above the water, in meters, at t seconds can be modelled by the equation: H(t)=10+2t-4.9t^2
1)Determine the height of the diver one second
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Guest
Nov 14, 2020
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464
1
What is the range of f(x)?
Given that f(x) = 1/3^x, what is the range of f(x) on the interval [0,inf)?
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Guest
Nov 14, 2020
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406
2
Joe wants to find all the four-letter words that begin and end with the same letter
Joe wants to find all the four-letter words that begin and end with the same letter, and this letter does not appear in the middle. How many combinations of letters must he examine? A word is any sequence of letters, such as MTHM, and does not have to be
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Guest
Nov 14, 2020
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559
1
Sam has nine flower pots
Sam has nine flower pots, and want to display four of them on the front porch in a row, and the other five in a second row. (The order of the pots matters.) How many different displays are possible?
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Guest
Nov 14, 2020
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588
2
Geometry help, please. Thank you!
1. In the diagram, ∠ABC = ∠BDC = 90◦ . We know BD = 30 and CD = 72. What is AB?
Multiple questions deleted.
One question per post. Learn from the answer before you post the next one.
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Guest
Nov 14, 2020
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342
1
Rachel draws three cards from a standard deck of cards, one at a time.
Rachel draws three cards from a standard deck of cards, one at a time. However, this time, she puts each card she drew back into the deck. How many different ways can she draw three cards, if they all have different suits? (The order of the cards matters.)
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Guest
Nov 14, 2020
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613
1
Suppose I have 6 shirts, 4 ties, 3 pairs of pants
Suppose I have 6 shirts, 4 ties, 3 pairs of pants, and 2 pairs of shoes. If an outfit requires a shirt and pants and shoes, and can either have a tie or not have a tie, how many outfits can I make?
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Guest
Nov 14, 2020
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344
1
Help plz
A car with a speed of 35.0 m/s is approaching a low-speed zone with a speed limit of 10.0 m/s. The maximum magnitude of the car's acceleration is 5.35 m/s2 . At what minimum distance from the beginning of the low-speed zone should the car begin to
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Guest
Nov 14, 2020
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349
1
Using the digits 1, 2, 3, 4, 5, how many even three-digit numbers
Using the digits 1, 2, 3, 4, 5, how many even three-digit numbers less than 500 can be formed if each digit can be used at most once?
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Guest
Nov 14, 2020
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511
2
+308
Quadriatic Equations
Write down the quadratic equation whose roots are x=-7 and x=1, and the coefficient of x^2 is 1.
Enter your answer in the form "x^2 + bx + c = 0".
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notsmart2.0
Nov 14, 2020
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502
2
+223
Help! I'm Stuck Modular Arithmetic
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CPhilFanboy
Nov 14, 2020
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573
2
HELP ASAP!!! THANK YOU!!!
In triangle ABC, angle bisectors AD, BE, and CF meet at I. If DI = 3, BD = 4, and BI = 5, then compute the area of triangle ABC.
Please explain your answer!!! THANK YOU!!!
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Guest
Nov 14, 2020
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343
1
On the student government ballot at Sutter High School,
On the student government ballot at Sutter High School, the six candidates for president are listed first, followed by the four candidates for vice president, ending with the four candidates for secretary. In how many ways can the candidates be listed
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Guest
Nov 14, 2020
0
659
5
If x, y, and z are positive
If x, y, and z are positive with xy = 20, xz = 35, and yz = 14, then what is xyz?
mobro
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Guest
Nov 14, 2020
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561
1
During a company's first full year in business
During a company's first full year in business, the price of oil increased 50%. In the second year of business, the price of oil went down 40% from its price at the beginning of that year. Its price at the end of the second year is what percent of
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Guest
Nov 14, 2020
0
476
2
Two sides of scalene ABC measure 3 centimeters and 5 centimeters. What is the largest possible area of the triangle?
Two sides of scalene ABC measure 3 centimeters and 5 centimeters. What is the largest possible area of the triangle?
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Guest
Nov 14, 2020
0
490
1
The polynomial has degree 3.
The polynomial has degree 3. If f(-1) = 32, f(0) = 0, f(1) = -24, ,and f(2) = -28, then what are the x-intercepts of the graph of f?
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Guest
Nov 14, 2020
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932
1
I have 5 marbles numbered 1 through 5 in a bag. Suppose I take out two different marbles at random.
I have 5 marbles numbered 1 through 5 in a bag. Suppose I take out two different marbles at random. What is the expected value of the sum of the numbers on the marbles? Answer as a decimal to the nearest tenth.
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Guest
Nov 14, 2020
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931
1
+283
2 Modulo Arithmetic Problems
Hi, can someone help me with these problems? It'd mean so much to me:
1. How many positive integers N from 1 to 5000 satisfy the congruence ?
2. How many positive integers N from 1 to 5000 satisfy both congruences, and ?
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Caffeine
Nov 14, 2020
0
722
1
Given that BDEF is a square
Given that BDEF is a square and the area of triangle ABC is 1, find the number of square units in the area of the regular octagon.
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Guest
Nov 14, 2020
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