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1173

help

When Trilisa takes pictures, they turn out with probability 1/5. She wants to take enough pictures so that the probability of at least one turning out is at least 3/4. How few pictures can she take to accomplish this?

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Guest Oct 22, 2019

1086

Whats the average rate of change of change for

Whats the average rate of change of change for
f(x)=x^2+2x-1 as x goes from 1 to 2? Then how do i find the equation to the secant line of f(x)?

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Guest Oct 22, 2019

1020

+134

Make Sure You Check Peoples Posting History!!!

Make sure that a user is a person looking for genuine help on a problem, Not just ANSWERS. Please dont post the answer, Give them a way/example on how to solve said problem. Then have them try to work it out, If they then cant get it then you can then help read more ..

off-topic

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killersteve27 Oct 22, 2019

-2

1026

+128

need answer

In the diagram below, if $AD=30$, what is $BC$?
https://latex.artofproblemsolving.com/d/7/4/d746604a2da58d235a9ff0d5535f61c012ef9291.png

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Saketh Oct 22, 2019

-3

917

+128

need answer

Point $X$ is on $\overline{AC}$ such that $AX = 4\cdot CX = 12$. We know $\angle ABC = \angle BXA = 90^\circ.$ What is $BX$?
https://latex.artofproblemsolving.com/d/f/9/df9066fdcb6254b17f9af91efe50d1c466810587.png

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Saketh Oct 22, 2019

-3

1540

+128

Need answer

Initially, a $65$-foot ladder rests against a vertical wall such that the top of the ladder is $60$ feet from the ground. Then, Naoki moves the base of the ladder farther out from the wall so that the top of the ladder slides down until resting against read more ..

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Saketh Oct 22, 2019

-3

1020

+128

need answer

The longer leg of a right triangle is three times as long as the shorter leg. The hypotenuse is $\sqrt 5.$ What is the area of this triangle?

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Saketh Oct 22, 2019

-3

834

+128

need answer

Find the length of the shortest altitude of a triangle with sides of lengths 15, 20, and 25.

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Saketh Oct 22, 2019

588

HELP

Let be an integer. If the quadratic equation has one or more integer roots, then find the sum of all possible values of .

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Guest Oct 22, 2019

647

+134

Whats Peoples Opinion On This Post??

Read Form #2 first and then go to form #1 and go to Answer #17!!

Form #1 https://web2.0calc.com/questions/should-you-consider-anything-before-you-answer-a-question
read more ..

off-topic

killersteve27 Oct 22, 2019

516

apples and bananas probability

Cam can't figure out what to eat. He is going to randomly select a piece of fruit from his pantry. There are 444apples and 555 bananas in his pantry.

what is the decimal for this question?

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Guest Oct 22, 2019

484

Help Would be appreciated.

Let be a positive integer, and define the integers and . When dividing by , the quotient is , and the remainder is . Find .

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Guest Oct 22, 2019

966

Suppose is a solution to . What is the sum of and its reciprocal?

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Guest Oct 22, 2019

372

Trig

I don't understand at all. I've tried figuring it out but I'm just so confused. I'm not good with trig and I just really need some help. Thanks in advance.

Guest Oct 22, 2019

756

Advanced Quadratics

The equation has only integer solutions for . If is a positive integer, what is the greatest possible value of ?

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Guest Oct 22, 2019

1234

HELP

In the game Yahtzee, a player rolls five fair six-sided dice, and gets a Yahtzee if all five dice show the same number. After the initial roll, the player gets two chances to reroll some of the dice. What is the probability that, on the initial roll, at read more ..

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Guest Oct 22, 2019

746

can anyone solve:

can anyone solve:

3kg of plums and 2kg of apples cost £3.40, while 1kg of plums and 4kg of apples cost £2.80. Find the cost of 1kg of apples in pence.

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nickashley Oct 22, 2019

509

Can someone show me how to get the differential from this expression?

Thanks to my CAS I have the result but I don't know how it got it.

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Guest Oct 22, 2019

602

System of equations

hello can you please check this system of equations to true or false k == (Sqrt[y^2 - 2 y^3 - y^4 + 2 y + 1] + Sqrt[2 - 2 y] - k)/((y + 1) Sqrt[1 - y^2]), Sqrt[2]/2/m == k/(k - Sqrt[2 - 2 y]), n == Sqrt[2 - 2 Sqrt[1 - m^2]], z == Sqrt[2 - 2 y]/f == Sqrt[(zn)^2 read more ..

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Guest Oct 22, 2019

751

HLWP

In the sequence 121, 1221, 12221,...., the nth number consists of n copies of the digit 2, surrounded by two 1s. How many of the first 100 terms in the sequence are divisible by 3?

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Guest Oct 22, 2019

507

Help

What is the minimum possible value for y in the equation y = x^2 + 12x + 5?

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Guest Oct 22, 2019

5580

+38

Been stuck on this one help would be appreciated

A small radio transmitter broadcasts in a 27 mile radius. If you drive along a straight line from a city 35 miles north of the transmitter to a second city 31 miles east of the transmitter, during how much of the drive will you pick up a signal from the read more ..

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evanborot Oct 22, 2019

All Questions ⁺⁰230633 Questions

help

Whats the average rate of change of change for

Make Sure You Check Peoples Posting History!!!

need answer

need answer

Need answer

need answer

need answer

HELP

Whats Peoples Opinion On This Post??

apples and bananas probability

Help Would be appreciated.

Suppose is a solution to . What is the sum of and its reciprocal?

Trig

Advanced Quadratics

HELP

can anyone solve:

Can someone show me how to get the differential from this expression?

System of equations

HLWP

Help

Been stuck on this one help would be appreciated

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