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College Algebra Algebra 2

03/17/20

College Algebra

Write the following sentence as an equation: y varies directly as x.

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03/17/20

Graph the parabola (do not place any dots) then fill in the blanks about the vertex, any intercepts, the domain, and range. Enter intercepts as ordered pairs, aka points.y=−x2−10x−21I know all the... more

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College Algebra Right Triangle Missing Side

03/17/20

College Algebra Homework "hypotenuse of a right triangle".

The hypotenuse of right triangle is 68 miles long. The difference between the other two sides is 28 miles. Find the missing sides. Use exact values.Short leg: miles longer leg: ... more

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College Algebra

03/17/20

How many gallons of a 70% antifreeze solution must be mixed with 100 gallons of 15% antifreeze to get a mixture that is 60% antifreeze? Use the six-step method.

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College Algebra

03/17/20

p(x)=800−0.5x find the maximum

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College Algebra Precalculus

03/17/20

What ticket price would maximize revenue

A baseball team plays in a stadium that holds 56000 spectators. With the ticket price at $12 the average attendance was 24000. When the price dropped to $9, the average attendance rose to 28000.... more

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College Algebra

03/17/20

Areas in diameters

A rectangular garden is 8 ft longer than it is wide. Its area is 609 ft2. What are its dimensions?

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College Algebra Precalculus

03/17/20

Find the equation

Write an equation for the quadratic graphed below x-intercepts: (-3,0) and (1,0). Y-intercept: (0,2)

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College Algebra Precalculus

03/17/20

Find b and c of the equation

Find b and c so that y=-12x^2 +bx+c has the vertex (5,-5)

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College Algebra Graph Domain Range

03/17/20

Graph the piecewise defined function f(x)= 1-x^2 if x < 2 and f(x)= x if x > 2

Graph, and find domain & range. Note: On f(x)= 1-x^2 if x < 2 , if x<2 is equal to as well. (Could not find symbol on keyboard).

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College Algebra

03/11/20

If Paul has $1248 left after spending 1/3 of his monthly salary for rent and 1/8 of his monthly salary for his credit card bill, what was his monthly salary?

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College Algebra

03/10/20

Exponential Growth & Exponential Decay

Which equation in the form f(x)=C*a^x for an exponential function has initial value 2300 and growth factor 3.5?a) y=2.3*3.5^xb) y=3.5*2300^xc) y=2300*3.5^xd) y=3.4*5.8^x

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College Algebra

03/10/20

Finding the sum and the difference of number

the sum of two numbers is 55, and the difference between the numbers is 3. Find the numbers

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College Algebra

03/09/20

Find rate of bike and car

Tammy can bicycle 65 mi in the same time it takes her to drive 185 mi. If her driving rate is 40 mi/h faster than her rate on the bicycle, find each rate.

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College Algebra

03/09/20

I guess finding the approximate value

Suppose a classmate tells you that 3 square root of 6≈2.5. Without a calculator, how can you convince your classmate that he or she must have made an error?

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College Algebra

03/08/20

What is the conjecture that release the result of the process to the original number selected?

Repeat the following procedure for the four given numbers. Multiply the number by 6. Add 10 to the product. Divide this sum by 2. Subtract 5 from the quotient. The 1st number is 1. The result... more

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College Algebra Math Calculus Precalculus

03/05/20

The number of bacteria in a culture is increasing according to the law of exponential growth.

The number of bacteria in a culture is increasing according to the law of exponential growth. After 3 hours, there are 400 bacteria, and after 6 hours, there are 3200 bacteria. How many bacteria... more

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College Algebra Math Calculus Precalculus

03/05/20

The populations P (in thousands) of a particular county from 1971 through 2014 can be modeled by P = 79.9e0.0317t. Where t represents the year, with t = 1 corresponding to 1971.

a) Use the model to complete the table. (Round your answers to the nearest whole number.) Year Population 1980 1990 2000 2010 (b) According to the model, when... more

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College Algebra Math Calculus Precalculus

03/05/20

Find the missing value for the radioactive isotope. (Round your answer to two decimal places.)

Isotope Half life (years) Initial Quantity Amount after 1000 Years 14C 5715 ? g 3 g

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College Algebra Math Algebra 1 Calculus

03/05/20

Find the missing value for the radioactive isotope. (Round your answer to two decimal places.)

Isotope Half life (years) Initial Quantity Amount after 1000 Years 226Ra 1599 6 g ? g

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College Algebra Math Precalculus Trigonometry

03/05/20

Determine the principal P that must be invested at rate r = 8%, compounded monthly, so that $500,000 will be available for retirement in t = 15 years. (Round your answer to the nearest cent.)

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College Algebra

03/04/20

The polynomial of degree 3 , P ( x ) , has a root of multiplicity 2 at x = 5 and a root of multiplicity 1 at x = − 5 . The y -intercept is y = − 62.5 .

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College Algebra Precalculus

03/02/20

A newspaper carrier has $6.80 in change. He has four more quarters than dimes but five as many nickels as quarters. How many coins of each type does he have?

How many dimes does he have? How many quarters does he have? How many nickels does he have?

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College Algebra Algebra 2

03/02/20

an alligator with a body length of 7.7 feet has a tail length of 6.3 feet what is the tail length of an alligator whose body length is 6.6

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College Algebra Math Precalculus Trigonometry

02/29/20

Please help me! The population P (in thousands) of Alaska in the years 2005 through 2015 can be modeled by P = 75 ln(t) + 540, 5 ≤ t ≤ 15 where t represents the year, with t = 5 corresponding to 2005.

Whole question:The population P (in thousands) of Alaska in the years 2005 through 2015 can be modeled by P = 75 ln(t) + 540, 5 ≤ t ≤ 15 where t represents the year, with t = 5 corresponding to... more

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College Algebra

How do i graph this parabola

College Algebra Homework "hypotenuse of a right triangle".

How many gallons of a 70​% antifreeze solution must be mixed with 100 gallons of 15​% antifreeze to get a mixture that is 60​% ​antifreeze? Use the​ six-step method.

p(x)=800−0.5x find the maximum

What ticket price would maximize revenue

Areas in diameters

Find the equation

Find b and c of the equation

Graph the piecewise defined function f(x)= 1-x^2 if x < 2 and f(x)= x if x > 2

If Paul has $1248 left after spending 1/3 of his monthly salary for rent and 1/8 of his monthly salary for his credit card bill, what was his monthly salary?

Exponential Growth & Exponential Decay

Finding the sum and the difference of number

Find rate of bike and car

I guess finding the approximate value

What is the conjecture that release the result of the process to the original number selected?

The number of bacteria in a culture is increasing according to the law of exponential growth.

The populations P (in thousands) of a particular county from 1971 through 2014 can be modeled by P = 79.9e0.0317t. Where t represents the year, with t = 1 corresponding to 1971.

Find the missing value for the radioactive isotope. (Round your answer to two decimal places.)

Find the missing value for the radioactive isotope. (Round your answer to two decimal places.)

Determine the principal P that must be invested at rate r = 8%, compounded monthly, so that $500,000 will be available for retirement in t = 15 years. (Round your answer to the nearest cent.)

The polynomial of degree 3 , P ( x ) , has a root of multiplicity 2 at x = 5 and a root of multiplicity 1 at x = − 5 . The y -intercept is y = − 62.5 .

A newspaper carrier has $6.80 in change. He has four more quarters than dimes but five as many nickels as quarters. How many coins of each type does he have?

an alligator with a body length of 7.7 feet has a tail length of 6.3 feet what is the tail length of an alligator whose body length is 6.6

Please help me! The population P (in thousands) of Alaska in the years 2005 through 2015 can be modeled by P = 75 ln(t) + 540, 5 ≤ t ≤ 15 where t represents the year, with t = 5 corresponding to 2005.

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How many gallons of a 70% antifreeze solution must be mixed with 100 gallons of 15% antifreeze to get a mixture that is 60% antifreeze? Use the six-step method.