05/13/20

Given the scale factor and the surface area of the smaller figure, find the surface area of the larger figure. Scale Factor: 3/4 Surface area: 90 square inches
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05/13/20

A map of a city shaped like a square is given below on a grid. in 2002 the city population wa 486,000 people. what was the population density in 2002
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05/13/20

Please help need a picture of this please

You are driving on a course of 105˚. A radio station that is due East and 30 miles away from your current location puts out a signal with a 25 mile radius. If you continue on your 105˚ course,... more
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05/13/20

Combine the logarithmic expression into a single logarithm and then evaluate the logarithm
Combine the logarithmic expression into a single logarithm and then evaluate the logarithm. Log 60 + log 50 – log 3
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05/13/20

Find the volume of the solid obtained by rotating the region bounded by the given curves about the line
Find the volume of the solid obtained by rotating the region bounded by the given curves about the line  x= -6 y= x^2 x= y^2
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05/11/20

Could someone answer this math problem?
The space needle in Seattle has a restaurant that offers views of Mount Rainer and Puget Sound.The restaurant completes one full rotation in approximately 45 minutes. How many radians willthe... more
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05/10/20

Finding probability
Suppose that 3% of computer chips produced by a certain machine are defective. The chips are put into packages of 20 chips for distribution to retailers. What is the probability that a randomly... more
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05/10/20

Finding probability

A company prices its hurricane insurance using the following assumptions:(i) In any calendar year, there can be at most one hurricane.(ii)In any calendar year, the probability of a hurricane is... more
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05/08/20

This one is a challenge: What is the probability of drawing a “double” from a set of dominoes?
In a set of dominos, each tile has two sides with a number of dots on each side: zero, one, two, three, four, five or six. There are 28 total tiles, with each number of dots appearing alongside... more
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04/30/20

Unsure on how to solve this math problem
A person's systolic blood pressure, which is measured in millimeters of mercury (mm Hg), depends on a person's age, in years. The equation:P=0.005y2−0.01y+120gives a person's blood pressure, P, at... more
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04/29/20

Find the standard form of the equation of the parabola with the given characteristics. Focus: (0, 0); Directrix: y = 10
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04/29/20

Calculus (percent symbol)
The number of potholes in any given 1 mile stretch of freeway pavement in Pennsylvania has a bell-shaped distribution. This distribution has a mean of 65 and a standard deviation of 7. Using the... more
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04/29/20

class 4 girls, 4 boys in the seventh grade and 3 girls, 7 boys in the eighth grade. She randomly selects a seventh grader and eighth grader. the probability that the students she selects are boys?
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04/29/20

algebra word problem
Marty Lister invested $9000 in stocks and bonds. The stocks paid 5% and the bonds 8%, giving an annual income of $525. How much did he invest in bonds?
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04/28/20

Physics Questions -- Forces
1.) A person is pulling a heavy wagon along the sidewalk by exerting a force of 12.0 N [E] on it. A force of friction of 10.0 N opposes the motion. The force of gravity on the wagon is 100 N. Draw... more
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11/13/18

An Optimization Problem
I have some issues regarding this optimization problemA cylindrical garbage can with no top needs to hold 6 ft3 of garbage. What diomensions should the can have in order to minimize the amount of... more
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03/07/18

How do you do this word problem?
Two circles have radii 6 cm and their centers are 6 cm apart. Find the area of the region common to both circles.
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12/12/17

Exponential Growth and Decay
Jose takes medication after t minutes, the concentration of medication left in his bloodstream is given by A(t)=10(0.5)0.014t , where A is in milligrams per liter. 1. Write down A(0) 2. Find the... more
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11/30/16

Exponential Growth Question
A savings account is started with an initial deposit of $500. The account earns 1.5% interest compounded annually. a. Write an equation to represent the amount of money in the account as a function... more
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01/30/16

The sum of three numbers is 105. The third is 11 less than, 10 times the second. Twice the first is more than, 3 times the second. Find the numbers.
I can't seem to translate from English to open sentences
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01/27/16

What is the magnitude of rock's acceleration immediately after being released?
A rock is thrown (not dropped) straight down from a bridge into the river below. What is the magnitude of rock's acceleration immediately after being released? Disregard air resistance. a) greater... more
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