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Post New Question
All Questions
+0
230864 Questions
-2
2149
5
+288
Ellipses
Let be a positive real number. The square with vertices and is plotted in the coordinate plane.
Find conditions on and such
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madyl
Mar 6, 2020
0
1195
3
sequence help
The first, third and ninth terms of a arithmetic sequence (A.P) are equal to the first three terms of a geometric sequence (G.P). if the seventh term of the linear sequence is 14.
Calculate:
(a) the twentieth term of the arithmetic sequence
(b)
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Guest
Mar 6, 2020
0
1023
2
f(x)=−10sin(π2x)+4 f(x)=−4sin(πx)+6 f(x)=−4sin(π2x)+6 f(x)=−10sin(πx)+4
The graph of a sine function has an amplitude of 10, a midline of y = 4, and a period of 2. There is no phase shift. The graph is reflected over the x-axis. What is the equation of the function? f(x)=−10sin(π/2 x)+4 f(x)=−4sin(πx)+6 f(x)=−4sin(π/2 x)+6
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off-topic
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Guest
Mar 6, 2020
0
1714
2
help asappp
There exist constants [3x^2 + 12x + 4 = a(x - h)^2 + k\ and such that
for all real numbers x Enter the ordered triple (a,h,k)
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Guest
Mar 6, 2020
0
489
1
help asap
Let P=(a,b )be the point of intersection of the line y=2x-10 and the line through (7,8) and (9,0) Compute a+b .
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Guest
Mar 6, 2020
0
550
1
Help
What is the cosine equation of the function shown? https://static.k12.com/nextgen_media/assets/8372137-NP057_953_prompt.png Enter your answer by filling in the boxes. Enter any phase shift as its smallest multiple from the fundamental period.
off-topic
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Guest
Mar 6, 2020
0
334
1
A study indicates that 62% of students have have a laptop. You randomly sample 8 students. Find the probability that between 4 and 6 (includ
A study indicates that 62% of students have have a laptop. You randomly sample 8 students. Find the probability that between 4 and 6 (inclusive) have a laptop.
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Guest
Mar 6, 2020
0
702
1
probability
At a Phonesmart store, each phone sold is twice as likely to be an Apricot as a Banana. Also each phone sale is independent of any other phone sale. If you monitor the sale of two phones, what is the probability that the two phones sold are the same?
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Guest
Mar 6, 2020
0
668
3
math141
A poker hand consisting of 8 cards is dealt from a standard deck of 52 cards. Find the probability that the hand contains exactly 5 face cards.
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Guest
Mar 6, 2020
0
384
1
how much is 3+3?
how much is 3+3?
off-topic
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Guest
Mar 6, 2020
0
731
1
+18
Is the graph plotted correctly?
Graph the function f(x)=sin(2πx−π/2).
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Kjessie2
Mar 6, 2020
0
314
0
please help
For a set of ten numbers, removing the largest number decreases the average by 1. Removing the smallest number increases the average by 2. What is the positive difference between the largest and the smallest of these ten numbers
Guest
Mar 6, 2020
0
553
1
Calc & Trig
Thanks!!
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Guest
Mar 6, 2020
0
547
1
+8
Please help
NOTE: To answer the questions below, please plot at least 5 points to create the graph
(I think I know how to do the first 2 graphs, but the last one seems really tough for me)
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Termabyte
Mar 6, 2020
0
2197
1
+28
What is the period of the function shown in the graph?
What is the period of the function shown in the graph?
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Calchelp211
Mar 6, 2020
0
537
1
please help
A man wants to make up 100 one-pound jars of nuts to sell for 66 cents a jar. He plans to use 40 pounds of nuts worth 75 cents a pound. What should be the unit price of the other type of nuts he uses?
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Guest
Mar 6, 2020
+1
1244
2
Math help
How is domain of the function f(x)=cosx restricted so that its inverse function exists? Drag a value or interval into each box to correctly complete the statements.
The domain of f(x)=cosx is restricted to _____so that the inverse of the function
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Guest
Mar 6, 2020
0
1758
2
Pls help
A cosine function has a period of 3π/4, an amplitude of 4, and a vertical translation 3 units down. The function is not reflected over the x-axis. What is the equation for this cosine function?
f(x)=___cos(___x)___
ElectricPavlov
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Guest
Mar 6, 2020
0
767
2
Can someone help me and tell me if this is correct???
Graph the function f(x)=sinx−3. Use π=3.14.
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Guest
Mar 6, 2020
0
588
1
help with probability
Suppose we have a face recognition system with an accuracy of 90%. Suppose it is deployed in a security system that observes 40 people. Compute the following probabilities
(a) It fails for exactly 6 people.
(b) It fails for at most 2 people.
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Guest
Mar 6, 2020
0
1922
1
parabola
A parabola can be drawn given a focus of (-4, 4) and a directrix of y = –6. Write the equation of the parabola in any form.
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Guest
Mar 6, 2020
0
717
1
Help pls
In the diagram below, and A is not on . Line segments and intersect at P. Can ? Explain.
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Guest
Mar 6, 2020
0
571
1
please help
Two cars leave Phoenix and travel along roads 90 degrees apart. If Car 1 leaves 30 minutes earlier than Car 2 and averages 42 mph and if Car 2 averages 50 mph, how far apart will they be after Car 1 has traveled 3.5 hours?
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Guest
Mar 6, 2020
-1
544
2
+25
Please help!
Anty the ant is on the real number line, and Anty's goal is to get to 0.
If Anty is at 1 then on the next step, Anty moves to either 0 or 2 with equal probability. If Anty is at 2 then on the next step, Anty always moves to 1.
Let x be expected number
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JustAPotato
Mar 6, 2020
0
470
2
please help, i dont understand this!
The table shows values of a function . What is the average rate of change of over the interval from x = 5 to x = 9? Show your work.
x
4
5
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Guest
Mar 6, 2020
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