18h

A sector of a circle with diameter 10 feet and an angle of _ π 2 radians
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18h

Help !!!suppose r varies directly as the square of m

Suppose r varies directly as the square of​ m, and inversely as s. If r=17 when m=6 and s=4​, find r when m=18 and s=4.
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1d

what is the molarity of an H3PO4 solution if 135 mL is completely reacted by 674 mL of 0.200 M Ca(OH)2 solution?
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1d

find the derivative

find the derivative of -9sin2(-3x5)
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1d

Math need help. How to solve this
If F (x,y,z)=tan z i +(x + z) j+ xsiny k and σ is the portion of the cylinder z=9-x2-y2 above the xy-plane oriented so that the unit normal vector n points to the outside of the cylinder, use... more
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1d

How to solve this

If the dewpoint D on the ground is 50 Fahrenheit in the dewpoint X miles high is given by D(x)= 50-5.8 X find the attitudes or the dewpoint ranges from 41.3 Fahrenheit to 29.7 Fahrenheit.
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1d

Find a formula for the general term

For each sequence, find a formula for the general term, a_n. Sequences start with n=1. For example, answer n^2 if given the sequence: 1) 1/2. 1/4. 1/8, .1/16... = ?(3+n-1)/(n+3)^22) 3/16, 4/25,... more
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1d

physics question
A force F1  of magnitude 7.00 units acts at the origin in a direction 32.0° above the positive x-axis. A second force F2 of magnitude 5.00 units acts at the origin in the direction of the... more
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1d

Write the word sentence as an inequality
A number x divided by 3 is at most 5
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1d

Find the work required to pump the water
The tank shown below is full of water. Using the fact that the weight of water is 62.5lb/ft^3, find the work (in ft-lbs) required to pump the water out of the outlet. Make sure your answer is... more
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1d

mathh questions
A city currently has 2.08 thousand residents. Each year the city's population grows by around 420 persons.After 14 years what will the approximate population of the city be? Round to three... more
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1d

Should you take the SIE training and exam before you start studying for the Series 65 (or 66)?
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1d

Find the Arc Length Calculus
Use the arc length formula to find the length of the curve y = √(2-x^2) , 0≤x≤1
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1d

∀x ∈ R define the function f (x) = x3 − x2 − 3x + 2. Find f −1({−1})
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1d

Standard form of equation

Write the standard form of the equation of the circle with the given characteristics.Center: (0, 0); Radius: 3
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1d

Determine whether the equation is an identity?

Determine whether the equation is an identity, a conditional equation, or a contradiction.8(x + 1) − 4x = 4(x + 2)This is an identity.This is a conditional equation.   This is a contradiction.
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1d

Algebraic tests

Use the algebraic tests to check for symmetry with respect to both axes and the origin. (Select all that apply.)x2 − y = 9x-axis symmetryy-axis symmetryorigin symmetryno symmetry
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1d

What is the difference between localized and delocalized electrons?

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1d

Algebra help needed - unsure to graph function

For the function f(x)= x^2 -8x + 7 The parabola moves up, the y intercept is 7 and the vertex is (4,-9)Graph the function clearly showing the y intercept its symmetric point and the vertex domain:... more
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1d

How old am I if 200 reduced by 3 times my age is 11
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1d

solving a algebraic function

if f(x)=2x^2 + 5 and g(x)=x^2, find (f-g)(x)
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1d

Can we say the n (shell number) = l - 1 (1=azimuthal quantum number)
Are there any relations between them?
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1d

How can I be less boring when I give a presentation?
Whenever it's your time to speak in front of anyone, they become your audience. It is your job to hold that audience's attention and in a world with short attention spans and infinite screen time,... more
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1d

find the derivative

find the derivative of -9sin2(-3x5)
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1d

physics question
The helicopter view in the figure below shows two people pulling on a stubborn mule. (Take F1 = 143 N and F2 = 73.0 N.)(a) Find the single force that is equivalent to the two forces... more
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