07/30/25

What is the difference between solving a quadratic by factoring and using the quadratic formula?
Factoring is efficient when the quadratic is "nice," however, using the Quadratic formula works every time (unless there isn't a solution...)
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03/19/23

can someone help with these problems

An Arborist is interested in determining the mean diameter of mature white oak trees. The following data represent the diameter (in centimeters) 1 meter above the bases for a random sample of seven... more
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03/18/23

Find the flux of 𝐹⃑ across the positive oriented 𝑆 if 𝐹⃑ = 𝑥𝑖⃑ + 2𝑗⃑ + 𝑧𝑘⃑⃑ and 𝑆 is the boundary of the region enclosed by the cylinder 𝑦^2 + 𝑧^2 = 1 and the planes 𝑥 = 0 and 𝑥 + 𝑧 = 1
Find the flux of 𝐹⃑ across the positive oriented 𝑆 if 𝐹⃑ = 𝑥𝑖⃑ + 2𝑗⃑ + 𝑧𝑘⃑⃑ and 𝑆 is the boundary of the region enclosed by the cylinder 𝑦^2 + 𝑧^2 = 1 and the planes 𝑥 = 0 and 𝑥 + 𝑧 = 1. (NO use... more
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03/15/23

ou want to obtain a sample to estimate how much parents spend on their kids birthday parties. you believe the population standard deviation is approximately σ = 56.6 dollars.

You would like to be 98% confident that your estimate is within 10 dollar(s) of average spending on the birthday parties. How many parents do you have to sample?  n = 
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10/27/22

Express the polynomial v = x 2 + 4x − 3 in P(x) as a linear combination of the polynomials p1(x) = x 2 − 2x + 5, p2(x) = 2x 2 − 3x and p3(x) = x + 1.
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09/05/22

Rotation of an object using cross product
Given a rigid body that is rotating about a fixed axis with constant angular speed ω, the angular velocity vector ω is defined as the vector with magnitude ω whose direction is parallel to the axis... more
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02/01/22

Triangle ABC has been rotated 90° to create triangle DEF. Using the image below, prove that lines BC and EF have the opposite and reciprocal slopes. You must show all of your work to receive credit.
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05/17/21

For each of the following problems, sketch the vectors involved on a coordinate plane, then decompose vector into two vectors →v₁ and →v₂, where →v₁ is parallel to →w, and →v₂ is orthogonal to →w.
→v=- →i+6→j →w=3→i-2→j
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03/04/21

Chapters 20-21 Summative Assessment

A police officer uses a breathalyzer to test the blood alcohol content of drivers suspected of a DUI. The driver will be arrested if the officer believes that the driver is drunk, according to the... more
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02/16/21

algebra 2 matrices problem
Each swimmer is allowed to compete in 7 events at a swim meet. Danny got first place 3 times, second place 1 time, third twice, and fourth once. John got first 2 times, second place 3 times, third... more
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02/10/21

Physics IMA AND LEVERS
knowing the maximum lever length is 1 meter and the weights range from 10 g to 1kg, if you have a class 1 lever with a mechanical advantage of 1a. what is the length between the fulcrum and effort... more
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11/22/20

Assume the helium and air to be at 0°C and 1 atm.
A modern-day zeppelin holds 9,280 m3 of helium. Compute its maximum payload at sea level. (Assume the helium and air to be at 0°C and 1 atm.)
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10/14/20

PLEASE RESPOND TO physics questions
To answer the questions below, it may be useful to think of your friend's car driving on a level road on the surface of the Earth, or maybe in space accelerating upwards at 9.8 m/s2 (or some other... more
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02/20/19

How are ratios used in sports? For like soccer and basketball?
I am doing an E3 project for Math class and I need to know how ratios and proportions are used in daily life, so I picked how ratios are used in sports. If you can help me with this please answer... more
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03/04/15

Help on a few questions regarding Newton's laws
I'm really struggling with these problems. If anyone could help me out with these it would be greatly appreciated:   1.) An amusement park ride consists of a car moving in a vertical circle on... more
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