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Post New Question
All Questions
+0
234778 Questions
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637
1
please help!
Harry's amount of money is 75% of Kayla's amount of money. After Harry earned $30 and Kayla earned 25%
more of her money, Harry's amount of money is 80% of Kayla's money. How much money did each have at
the beginning?
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Guest
Jan 28, 2020
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1502
3
help
A member of the swim team will be elected as President. Each member is equally likely to be elected. The probability that a girl is elected is 3/2 the probability that a boy is elected. What fraction of the swim team are girls?
This is
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Guest
Jan 28, 2020
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556
1
Writing each expression as a single logarithm?
3 log6 - 2
The answer is log54, how should I get this answer?
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Guest
Jan 28, 2020
0
2756
3
(Reflections) Geometry question
Square has a side length of , and a laser is placed at vertex . A laser beam is fired at point on so that . The beam reflects off of the mirrored sides of the square, until it ends up at another vertex; at
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Guest
Jan 28, 2020
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718
1
help
The board of directors of a corporation must select a president, a secretary, and a treasurer. In how many possible ways can this be accomplished if there are 21 members on the board of directors?
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Guest
Jan 28, 2020
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1486
1
help
A ball is thrown into the air from the top of a building. The height, h(t), of the ball above the ground t seconds after it is thrown can be modeled by h(t) = -16t^2 + 64t + 80. How many seconds after being thrown will the ball hit the ground?
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Guest
Jan 28, 2020
0
546
1
please help
A square pyramid has a height of 14 cm and a base side length of 7 cm. What is the volume of the pyramid. Show work
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Guest
Jan 28, 2020
Jan 27, 2020
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780
1
help
The sum of the first and second of three consecutive even integers is 154. Find the three even integers.
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Guest
Jan 27, 2020
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1208
1
25 consecutive integers sum up to 225. What is the average of these numbers?
25 consecutive integers sum up to 225. What is the average of these numbers?
How do you do this?
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Guest
Jan 27, 2020
0
469
1
help
help
Factor x^2+5xy+6y^2+x+3y as the product of two polynomials of degree .
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Guest
Jan 27, 2020
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475
1
help
My family saved $2500 for a trip to the beach. We plan to spend 3/5 of this amount on gas and our hotel room and 1/2 of the remainder on food. What do we plan to spend on food?
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Guest
Jan 27, 2020
0
5848
68
+130
Which function is shown on the graph?
Which function is shown on the graph?
A. f(x)=1/2 sin x
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PeerlessCucumber
Jan 27, 2020
0
1055
1
8x=-6 what does x equal to
8x=-6 what does x equal to
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Guest
Jan 27, 2020
0
720
2
The function $f$ satisfies \[f(\sqrt{x + 1}) = \frac{1}{x}\]for all $x \ge -1,$ $x\neq 0.$ Find $f(2)$.
The function $f$ satisfies \[f(\sqrt{x + 1}) = \frac{1}{x}\]for all $x \ge -1,$ $x\neq 0.$ Find $f(2)$.
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Guest
Jan 27, 2020
0
1467
1
Factor $x^2+5xy+6y^2+x+3y$ as the product of two polynomials of degree 1.
Factor $x^2+5xy+6y^2+x+3y$ as the product of two polynomials of degree 1.
Thank you
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Guest
Jan 27, 2020
0
779
1
+130
Which transformations have been performed on the graph of...
Select each correct answer.
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PeerlessCucumber
Jan 27, 2020
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2214
2
What is ∑n=132(4n+1) equal to?
Can someone please help me ASAP? I can only take this once
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Guest
Jan 27, 2020
0
488
1
help
The sum of two numbers is 119. If 4 times the smaller number is subtracted from the larger number the result is nine. Find the two numbers.
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Guest
Jan 27, 2020
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725
1
x^3-4x^2-7x+28=0
x^3-4x^2-7x+28=0
What are the numbers of possible number of positive real solutions?
A. Two or zero
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Guest
Jan 27, 2020
0
637
1
help
Consider a binomial experiment with 20 trials and probability 0.65 of success on a single trial. Use the binomial distribution to find the probability of exactly 10 successes.
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Guest
Jan 27, 2020
0
722
2
In the diagram below, BD = 9, $CE = 7, [ABC] = 30, and [ADE] = 20. Find [ACD].
In the diagram above, BD = 9, CE = 7, [ABC] = 30, and [ADE] = 20. Find [ACD].
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Guest
Jan 27, 2020
0
929
2
help
ABC is an equilateral triangle with side length 4. M is the midpoint of BC, and AM is a diagonal of square ALMN. Find the area of the region common to both ABC and ALMN.
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Guest
Jan 27, 2020
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461
1
chemistry
if the pk of an acid is 4.75 and the concentrations of an acid and base are 0.1 M what is the ph
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Guest
Jan 27, 2020
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