6,938 Answered Questions for the topic mathematics
Calculus problem with Linear Approximation
Use linear approximation, i.e. the tangent line, to approximate 1/0.502 as follows: let f(x)=1/x and find the equation of the tangent line in slope-intercept form to f(x) at a "nice" point near ...
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Calculus problem with Linear Approximation
Use linear approximation, i.e. the tangent line, to approximate 1/0.502 as follows: let f(x)=1/x and find the equation of the tangent line in slope-intercept form to f(x) at a "nice" point near ...
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linear approximation calculus question
The linear approximation at x=0 to f(x) = (1)/(sqrt(8-x)) is L(x) = A + Bxwhere A = ??B = ??
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Mathematics
09/30/21
Finding The Whole
The difference between 7/8 of a number and 3/4 of the number is 10. What is the number?
PLEASE HELP Related Rates Calculus
Helium is pumped into a spherical balloon at a rate of 5 cubic feet per second. How fast is the radius increasing after 2 minutes?Note: The volume of a sphere is given by V = (4/3)pi*r^3
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Mathematics
09/30/21
Max is making trail mix. He combines 2/5 pound of dried fruit and 1/3 pound of mixed nuts. He adds sunflower seeds to make a total of 1 pound. What is the weight of the seeds?
Mathematics
09/29/21
if a certain number is multiplied by 8 less than its self the product is 20. what is the number.
09/29/21
What was this annual percentage increase?
From 1960 to 2000, the world's population doubled. The percentage increase per year is assumed to be the same. What was this annual percentage increase?
09/29/21
A car dealer sold cars
A car dealer sold cars for SEK 12 565 000 in 2010. This was an increase of 250% compared to 2009. How much did car sales make in 2009?
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09/29/21
What percentage discount did the store offer?
One deal attracted the following offer:Take three chocolate bars, pay for twoWhat percentage discount did the store offer?
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09/29/21
The value of electronics is falling
The value of electronics is falling quite rapidly. A reasonable assumption is that the value halves every year. In this case, what is the percentage decrease in the value of an electronic good over...
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09/29/21
If the true level is 4.1, would it be unusual for a 24-hour measurement to indicate that the level is safe?
Radon is a naturally occurring radioactive substance that is found in the ground underneath many homes. Radon detectors are often placed in homes to determine whether radon levels are high enough...
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09/29/21
Find the area under the standard normal curve that lies between
z = −2.30 and z = 1.08
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Related Rates Calculus question - A helium balloon
Helium is pumped into a spherical balloon at a rate of 5 cubic feet per second. How fast is the radius increasing after 2 minutes?Note: The volume of a sphere is given by V = (4/3)pi*r^3
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09/29/21
A stone is dropped from a tall building t=0 and strikes the ground. Illustrate a graph that best shows the velocity of the stone after it is dropped.
Please create a graph that would best describe the velocity of the following problem or situation.
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09/29/21
HELP For each equation, state the parent function and list all transformations
For each equation, state the parent function and list all transformations
y = 3|𝑥 + 5| − 7
y = (-x3)/(2) + 4
y = 5 - √(2x)/(3)
y = (-4x)2 - 3
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a particle moving calculus question
A particle is moving along the curve y=5(sqrt 5x-1) . As the particle passes through the point (3,20), , its x coordinate increases at a rate of 2 units per second. Find the rate of change of the...
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09/28/21
Which number is X?
Which number is X?A+(20% of A) = BB+(20% of B) = CA+(X% of A)=C
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09/28/21
The proportion of people with a mobile phone
In one country, the proportion of people with a mobile phone increased from 1.5 per 10 inhabitants to 8.5 per 10 inhabitants in 15 years.a) What is the percentage increase?b) What further...
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Related rates Calculus problem
Suppose xy = 1 and dy/dt = -3. Find dx/dt when x = -4
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Related Rates Calculus Question
if y^2 + xy - 3x = 14, and dy/dt = -4 when x = -2 and y = -2, what is dx/dt when x= -2 and y= -2
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09/28/21
The graph in the figure shows the velocity of a particle as it travels along the x-axis. What is the magnitude of the average acceleration of the particle between t= 1.0 s and t= 4.0 s?
The graph is here:https://imgur.com/a/CfnD478
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A flat screen television is advertised as being 43 inches on its diagonal. If the TV is 21 inches tall, then how wide is the screen?
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Related Rates Calculus Question
if y^2 + xy - 3x = 14, and dy/dt = -4 when x = -2 and y = -2, what is dx/dy when x= -2 and y= -2
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