429 Answered Questions for the topic SAT

05/01/21

this is due soon im lost its precaclulus

If ln x+ln(x−3)=ln(6x), then x=
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05/01/21

if i got help on this ill really appricate it so much this is precalculus for my hw

Use the Laws of logarithms to rewrite the expressionlog 3(x^17 3√y^14)in a form with no logarithm of a product, quotient or power.After rewriting we havelog 3(x^17 3√y^14) = A log 3 x + B log 3... more
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05/01/21

im trying to do this but i dont know where to start also its precalculus its due in a few hours
A roasted turkey is taken from an oven when its temperature has reached 185 Fahrenheit and is placed on a table in a room where the temperature is 75 Fahrenheit. Give answers accurate to at least 2... more
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05/01/21

I need help its due soon please its precalculus

You go to the doctor and he gives you 15 milligrams of radioactive dye. After 16 minutes, 4.5 milligrams of dye remain in your system. To leave the doctor's office, you must pass through a... more
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04/30/21

Context Inequality Systems
Claire has x dimes and y quarters, having at least 16 coins worth no more than $3 combined. No more than 22 of the coins are dimes and no more than 4 of the coins are quarters. Solve this system of... more
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04/27/21

Let ​f(x)=4−x and ​g(x)= 2 x. Perform the function operation and then find the domain of the result. ​(g−​f)(x)
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04/24/21

ive tried i dont know how to do this! please help its precalculus

A car was valued at $25,000 in the year 1994. The value depreciated to $12,000 by the year 2007.A) What was the annual rate of change between 1994 and 2007?r = __- Round the rate of decrease to 4... more
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04/24/21

precalculus hw need help its due soon!
The fox population in a certain region has a continuous growth rate of 7 percent per year. It is estimated that the population in the year 2000 was 15000.(a) Find a function that models the... more
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04/24/21

i dont undertsnad the steps for this precalulcus hw

A population of bacteria is growing according to the equation P(t)=800e^0.22t. Estimate when the population will exceed 2930.t=   Give your answer accurate to one decimal place.
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04/23/21

Find a formula for the exponential function Subject precalculus help me please
Find a formula for the exponential function passing through the points ( − 2 , 2/9 ) and (1,6) f ( x ) =
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04/19/21

Find the values of sine, cosine, tangent, cosecant, secant, and cotangent for the angle θ in standard position on the coordinate plane with the point (−4,−5) on its terminal side
sinθ= ?cosθ= ?tanθ= ?cscθ= ?secθ= ?cotθ= ?
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04/15/21

TRIGONOMETRY, degrees and measurements

For safety reasons, the angle a ladder makes with the ground should be no greater than 66°. Find the length to the nearest foot of the shortest ladder that will safely reach a roof that is 25 feet... more
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04/15/21

Geometry problem! Please help!
Please help!https://docs.google.com/document/d/1Aimw-q1YOsUCT4hQSZpnyTXErm00vkQA2nrnvMJhG-U/edit?usp=sharingWrite a 2-column proof justifying each step with a theorem or definition.
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04/15/21

Geometry problem! Please Please Please help!!
The question and picture for my problem are in the link. Please help!!https://docs.google.com/document/d/1Aimw-q1YOsUCT4hQSZpnyTXErm00vkQA2nrnvMJhG-U/edit?usp=sharing
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04/14/21

If a windshield wiper covers an area of approximately 180 square inches when it rotates at an angle of  7π/15 radians, find the length of the wiper to the nearest tenth of an inch.
The length of the wiper is approximately  ?   inches.
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04/13/21

Find the equation of the hyperbola centered at the origin with a focus at (0,8) and a transverse axis of length 10.
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04/13/21

Find the equation of the hyperbola centered at the origin with vertices(0,4) and (0,-4) and asymptotes y= ± 1/3 x.
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04/12/21

A radioactive substance decays from 85mg to 22.1mg in 25 years according to the exponential decay model y=ae-bx, where a is the initial amount and y is the amount remaining after years.  
A radioactive substance decays from 85mg to 22.1mg in 25 years according to the exponential decay model y=ae-bx, where a is the initial amount and y is the amount remaining after years. Find... more
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04/06/21

Statistics Probability.

Every cereal box has a gift inside, but you cannot tell from the outside what the gift is. The store manager assured you that 16 of the 47 boxes on the shelf have a secret decoder ring. The other... more
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04/02/21

Business Econ: Limits and Continuity
If $900 is invested in an account that pays 3​% compounded​ annually, the total​ amount, A(t), in the account after t years is A(t)=900(1.03)ta.) Find the average rate of change per year of the... more
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04/02/21

Business Econ: Limits and Continuity
Suppose customers in hardware store are willing to buy N(p) boxes of nails at p dollars per box, as given by the following function. N(p)= 100-4p2 ; 1 ≤ p ≤ 4a.) Find the average rate of change of... more
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04/02/21

Business Econ: Limits and Continuity
Suppose that the total profit in hundreds of dollars from selling x items is given by P(x)=5x^2-5x+9.a.) Find the average rate of change of profit as x changes from 4 to 6.$_ per item
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03/28/21

Let A = {n♥| n ∈ Z}. Examples of lements of A are 0♥, −10♥ and 10♥. Show that A is countable by enumerating its elements and then, give a compact definition of your enumeration function.

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03/16/21

Enthalpy diagram
Frost forms on the windshield of a car on a cold winter morning. This frost disappears with no evidence that water forms. Draw an enthalpy diagram to illustrate the change.
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03/13/21

Find the vector v with the given magnitude and the same direction as u.
Magnitude: ||v|| = 15Direction: u = 4i - 5jv = _______
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