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Post New Question
All Questions
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234927 Questions
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604
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+79
Please help me with this three part question, thank you!
Part a:
The Fibonacci sequence, with , and , has a closed form
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StarsIsTheLimit
Apr 10, 2021
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505
1
+79
Please help me with this two part question, thank you!
Part a:
Find polynomial f(n) such that for all integers , we have
Write f(n) as a polynomial with terms in descending order of n.
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StarsIsTheLimit
Apr 10, 2021
0
480
1
+184
Advanced Quadratics
Given $x\neq0$, find the positive value of $b$ such that the equation $\frac 3x+\frac x3=b$ will have exactly one solution.
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emmy18
Apr 10, 2021
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678
5
+184
Lengths in Circles
Two circles of radius 10 cm overlap such that each circle passes through the center of the other, as shown. How long, in cm, is the common chord (dotted segment) of the two circles? Express your answer in the simplest radical form.
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emmy18
Apr 10, 2021
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432
1
+4
MATH
DRAW A VENN DIAGRAM AND USE THE GIVEN INFORMATION TO FILL IN THE NUMBER OF ELEMENTS IN EACH REGION. (show all your work) n(A ∩ B) = 21, n(A ∩ B ∩ C) = 6, n(A ∩ C) = 26, n(B ∩ C) = 7, n(A ∩ C’) = 20, n(B ∩ C’) = 25, n(A’ ∩ B’ ∩ C’) = 2, n(C) = 40
<
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ilkaflores1
Apr 10, 2021
Apr 9, 2021
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364
1
Percentage
In a bag of Jolly Gems candy-coated chocolate pieces, 26% are red, 21% are blue, 15% are brown, 16% are yellow, and 19% are green. If there are 191 chocolate pieces in a bag, how many of them are yellow?
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Guest
Apr 9, 2021
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471
1
1. Ava rolls two dice. She adds the numbers on the dice. What is the chance of this sum being twelve?
1. Ava rolls two dice. She adds the numbers on the dice. What is the chance of this sum being twelve?
2. A bike originally priced at $120 is marked down by 40%. What is the sale price?
ElectricPavlov
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Guest
Apr 9, 2021
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304
0
Help me
Consider a group of 1998 people. Is it possible that each of them knows exactly 101 people in the group?
Guest
Apr 9, 2021
0
336
1
halppppp
A three-digit number is equal to 17 times the product of its digits, and the hundreds digit is 1 more than the
sum of the other two digits. Find all such three-digit numbers.
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Guest
Apr 9, 2021
0
417
2
help asap!
ABCD is a square with AC = 49.5 cm. P is a point inside ABCD such that PB = PC, and the area of triangle PCB is one third of the area of ABCD. What is the length, in cm., of PA? Round your answer off to the nearest integer.
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Guest
Apr 9, 2021
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412
1
Math
A unknown infection grows according to a geometric progression that triples the number of bacteria every 5 minutes. At that rate, how many bacteria will be present after 20 minutes if the progression began with 23 bacteria?
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Guest
Apr 9, 2021
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413
1
Area
Pathway Pretzels are packaged in boxes that are 15 inches x 7 inches x 12 inches. The entire outside surface area of the box is covered with clear shrink-wrap. What is the outside surface area of each box?
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Guest
Apr 9, 2021
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425
1
Math
Justin wrote a 200-word essay for the Labor Day essay contest. He started writing at 4:38 p.m. and finished the essay at 7:13 p.m. How long did it take him to write his entry?
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Guest
Apr 9, 2021
0
460
1
algebra
What are the coordinates of the points where the graphs of f(x) = x^3 - x^2 + x + 1 and g(x) = x^3 + x^2 + x + 1 intersect? Give your answer as a list of points separated by semicolons, with the points ordered such that their x-coordinates are in increasing
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Guest
Apr 9, 2021
0
355
0
+409
What Is the derivation rule for line 4?
What Is the derivation rule for line 4?
1 | B → (C v ~A)
2 | C → (C • E)
3 | ~A → C Conclusion: B → E
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liz54321
Apr 9, 2021
0
394
1
graphs
The graph of y = f(x) is shown below in red. Given that f is invertible, find $f^{-1}(4)$.
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Guest
Apr 9, 2021
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645
1
PLS HELP
The first six rows of Pascal's triangle are shown below, beginning with row zero. Except for the $1$ at each end, row $4$ consists of only even numbers, as does row $2.$ How many of the first $20$ rows have this property? (Don't include row $0$ or row $1$).
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textot
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Guest
Apr 9, 2021
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420
1
Graphing
The graph of y = h(x) is shown in red below. Compute h(h(7)).
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Guest
Apr 9, 2021
0
500
3
god bless you if you help me
In the expression (1 + (1 + 1) * 2) * 2, Sarah may erase one open parenthesis (" ( ") and one close parenthesis (" ) " ), or she may erase nothing. Find the least possible value of the resulting expression.
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Guest
Apr 9, 2021
0
400
1
Graphs
The graph of y = f(x) is shown in red below. Assuming the graph consists of three line segments, what is f(-2)?
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Guest
Apr 9, 2021
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