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All Questions
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152830 Questions
0
151
1
+22
Math
https://web2.0calc.com/questions/hello-it-s-tori-again-i-need-help-on-a-few-more-questions-they-re-multiple-choice-thank-you#r1
Would it be possible to get these questions answered? Please and thank you!
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thorn
Feb 22, 2019
0
97
1
Determining the exact angle?
Angle θ is in quadrant II and sin θ = . Determine an exact value for cos 2θ.
Since angle θ is in quadrant II for cos 2θ, I used the CAST rule and I inquired that this value must be negative.
read more ..
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Guest
Feb 22, 2019
+1
187
2
+322
For how many integers n between 1 and 11 (inclusive) n/12 is a repeating decimal?
For how many integers between 1 and 11 (inclusive) is n/12 a repeating decimal?
I can obviosly guess and check this, but I want the actual way.
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Badada
Feb 22, 2019
+2
186
1
+1062
Combination
A combination lock uses three integers in the combination, and the dial is numbered with the integers 0, 1, 2, and 3. If the consecutive numbers in the combination cannot be the same, how many possible combinations are there?
read more ..
ElectricPavlov
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CalculatorUser
Feb 22, 2019
+3
125
0
+194
anyone need help, i will do my best
My pleasure to help everyone
bigbrotheprodude
Feb 22, 2019
+2
132
1
+194
HELP !!!
The owner of the Good Deals Store opens a new store across town. For the new store, the owner estimates that, during business hours, an average of 90 shoppers per hour enter the store and each of them stays an average of 12 minutes. The average
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bigbrotheprodude
Feb 22, 2019
+2
161
2
+194
need help with it
If 3x−y=12, what is the value of 8x2y?
A) 212
B) 44
C) 82
D) The value cannot be determined from the information given.
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bigbrotheprodude
Feb 22, 2019
0
126
1
Epicenter
The epicenter of an earthquake is the point on Earth’s surface directly above the earthquake’s origin. A seismograph can be used to determine the distance to the epicenter of an earthquake. Seismographs are needed in three different places to locate an
read more ..
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Guest
Feb 22, 2019
+1
147
6
+322
Derivatives
Differentiate with respect to t.
y = a cos(t) + t^2 sin(t)
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Ruublrr
Feb 22, 2019
+1
175
8
+22
Math
The chart shows the cost of a used car -- of a specific model and year -- at different total mileages. Using a graphing calculator, find the equation for the line of regression, the Pearson product-moment correlation value (r), and the predicted mileage
read more ..
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thorn
Feb 22, 2019
+2
196
1
+1062
[deleted]
[deleted]
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CalculatorUser
Feb 22, 2019
0
133
1
+12
Help!
One hydrogen molecule has a mass of 2.016 amu. How many hydrogen molecules would there be in a pound of hydrogen?
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mathnigga01
Feb 22, 2019
+1
160
1
+250
Aops: Function compositions
Let f(x)=3x+w2 and g(x)=ax+b, for some constants a and b. If ab= 20 and f(g(x))=g(f(x)) for x=0,1,2,3...9, then find the sum of all possible values of a
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SydSu22
Feb 22, 2019
-5
144
4
+8
Solve each one:
Solve each one!
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GAMEMASTERX40
Feb 22, 2019
0
106
1
+12
Help!
The density of urine ranges from 1.01 g/ml to 1.03 g/ml.
a. What is the density of a 0.75 liter urine sample that has a mass of 765 g?
b. Why can urine density change?
read more ..
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mathnigga01
Feb 22, 2019
0
102
2
+12
PLEASE HELP ME
A 135 pound patient is to receive a medication dose of 0.5 mg per kg of body mass. The medication is available in 120 mg/ml. How many ml of medication should the patient receive?
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mathnigga01
Feb 22, 2019
-5
168
6
+8
Solve each one!
Solve each one!
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GAMEMASTERX40
Feb 22, 2019
0
72
0
Help hard quick
Consider the projection matrix P that satisfies
Use the picture below to find vectors with integer components and magnitude no greater than 8 that satisfy
List your answers as columns in increasing order of x-component.
read more ..
Guest
Feb 22, 2019
Feb 21, 2019
0
144
1
Need help, Thanks!
The function $\lfloor x\rfloor$ is defined as the largest integer less than or equal to $x$. For example, $\lfloor 5.67\rfloor = 5$, $\lfloor -\tfrac 14\rfloor = -1$, and $\lfloor 8\rfloor = 8$. What is the range of the function $$f(x) = \lfloor x\rfloor
read more ..
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Guest
Feb 21, 2019
+1
135
1
+194
solve for x
-(-(-)(-)(-10x))=-5 solve for x.
A. X= 0.5
B. X= 0.7 repeating
read more ..
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bigbrotheprodude
Feb 21, 2019
+1
140
1
+194
equation
The equation 24x2+25x−47ax−2=−8x−3−53ax−2 is true for all values of x≠2a, where a is a constant.
What is the value of a?
A) -16
B) -3
C) 3
D) 16
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bigbrotheprodude
Feb 21, 2019
0
135
0
+119
(Photoelectric effect) Finding velocity of ejected electron given initial and final wavelengths of X-ray
Hey, I'm in my senior year of highschool and I'm stuck on this problem that deals with things I haven't even learned (Canadian education system for ya). It has to do with the photoelectric effect.
Given the wavelengths of an X-ray before and after
read more ..
Aleguan
Feb 21, 2019
+1
156
2
+194
how to do this
?
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bigbrotheprodude
Feb 21, 2019
+2
141
1
+194
Need help with this
convergence
HELP PLS
read more ..
Rom
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bigbrotheprodude
Feb 21, 2019
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