All Questions

-2

2187

+288

Ellipses

Let be a positive real number. The square with vertices and is plotted in the coordinate plane.

Find conditions on and such read more ..

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madyl Mar 6, 2020

1279

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) read more ..

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Guest Mar 6, 2020

1106

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 read more ..

off-topic

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Guest Mar 6, 2020

1815

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

572

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

638

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

416

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

791

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? read more ..

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Guest Mar 6, 2020

752

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

461

how much is 3+3?

off-topic

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Guest Mar 6, 2020

814

+18

Is the graph plotted correctly?

Graph the function f(x)=sin(2πx−π/2).

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Kjessie2 Mar 6, 2020

390

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

649

Calc & Trig

Thanks!!

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Guest Mar 6, 2020

633

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)

read more ..

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Termabyte Mar 6, 2020

2257

+28

What is the period of the function shown in the graph?

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Calchelp211 Mar 6, 2020

630

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

1334

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 read more ..

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Guest Mar 6, 2020

1811

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 ●●

Guest Mar 6, 2020

849

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

677

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. read more ..

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Guest Mar 6, 2020

2000

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

805

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

658

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

637

+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 read more ..

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JustAPotato Mar 6, 2020

558

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 read more ..

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Guest Mar 6, 2020

All Questions ⁺⁰237665 Questions

Ellipses

sequence help

f(x)=−10sin(π2x)+4 f(x)=−4sin(πx)+6 f(x)=−4sin(π2x)+6 f(x)=−10sin(πx)+4

help asappp

help asap

Help

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

probability

math141

how much is 3+3?

Is the graph plotted correctly?

please help

Calc & Trig

Please help

What is the period of the function shown in the graph?

please help

Math help

Pls help

Can someone help me and tell me if this is correct???

help with probability

parabola

Help pls

please help

Please help!

please help, i dont understand this!

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