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Precalculus

09/25/22

Logarithm Problem

Given the formulas 2x+2y=10 and x+y=4, what are the values of x and y?

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Precalculus

09/25/22

Writing each expression in factored form. (Polynomials)

I know how to factor polynomials, it’s just when it ask me to “write each expression in factored form” I get confused. Because when you factor a polynomial you get that factored equation so... more

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Precalculus

09/25/22

Determine the linear function

Determine the linear function knowing that the slope is 4 and f(13)=20f(x)=

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Precalculus

09/25/22

Biologists have noticed a chirping of crickets

Biologists have noticed that the chirping of crickets of a certain species is related to temperature, and the relationship appears to be very nearly linear. A cricket produces 114 chirps per minute... more

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Precalculus

09/24/22

How much of each fertilizer brand (in lb) is needed to obtain the desired mixture?

A mixture of 6 pounds of fertilizer A, 17 pounds of fertilizer B, and 6 pounds of fertilizer C provides the optimal nutrients for a plant. Commercial brand X contains equal parts of fertilizer... more

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Precalculus

09/24/22

Find the equation x^2 + y^2 + Dx + Ey + F = 0

Find the equationx2 + y2 + Dx + Ey + F = 0of the circle that passes through the points. To verify your result, use a graphing utility to plot the points and graph the circle.(0, 0), (0, −4), (5, 0)

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Precalculus

09/24/22

Find the equation y = ax^2 + bx + c of the parabola that passes through the points. To verify your result, use a graphing utility to plot the points and graph the parabola.

Find the equation y = ax2 + bx + c of the parabola that passes through the points. To verify your result, use a graphing utility to plot the points and graph the parabola.(1, 4), (2, 2), (3, −6)

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Precalculus

09/24/22

Find the caloric content (in calories) of each item.

Two cheeseburgers and one small order of fries contain a total of 1160 calories. Three cheeseburgers and two small orders of fries contain a total of 1850 calories. Find the caloric content (in... more

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Precalculus

09/24/22

Use a graphing utility to solve the system of equations graphically. Round your solution(s) to two decimal places, if necessary.

Use a graphing utility to solve the system of equations graphically. Round your solution(s) to two decimal places, if necessary. y = −4e−x y + 2x + 9 = 0 (x,y)=

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Precalculus

09/24/22

Use a graphing utility to solve the system of equations graphically. Round your solution(s) to two decimal places, if necessary.

Use a graphing utility to solve the system of equations graphically. Round your solution(s) to two decimal places, if necessary. y = −4e−x y + 2x + 9 = 0 (x,y)=

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Precalculus

09/24/22

The supply and demand curves for a business dealing with wheat are Supply: p = 1.59 + 0.00016x^2 Demand: p = (2.388 − 0.008x)^2

The supply and demand curves for a business dealing with wheat are Supply:p = 1.59 + 0.00016x2Demand:p = (2.388 − 0.008x)2where p is the price in dollars per bushel and x is the quantity in bushels... more

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Precalculus

09/24/22

What are the dimensions of a right triangle with a two-inch hypotenuse and an area of 1 square inch? (Enter the lengths of the sides as a comma-separated list.)

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Precalculus

09/24/22

Use the equations for the total cost C and total revenue R to find the number x of units a company must sell to break even. (Round to the nearest whole unit.) C = 9.3 sqroot x + 15,000, R = 5.29x

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Precalculus

09/24/22

Polynomial Functions

Find an nth-degree polynomial function with real coefficients satisfying the given conditions. If you are using a graphing utility, use it to graph the function and verify the real zeros and the... more

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Precalculus

09/23/22

how do I solve?

Outside temperature over a day can be modeled as a sinusoidal function. Suppose you know the temperature is 60 degrees at midnight and the high and low temperatures during the day are 74 and 46... more

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Precalculus

09/23/22

Find b and c so that y = − 9 x 2 + b x + c has vertex ( − 3 , 3 ) .

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Precalculus

09/23/22

How do you solve for h in the following equation: 48π =2πrh + 2πr^2

please show step-by-step process of doing so

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Precalculus

09/23/22

The number of bacteria in a culture is increasing according to the law of exponential growth. After 2 hours, there are 50 bacteria, and after 5 hours, there are 400 bacteria.

The number of bacteria in the culture is increasing according to the law of exponential growth. After 2 hours, there are 50 bacteria, and after 5 hours, there are 400 bacteria.How many bacteria... more

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Precalculus

09/23/22

Use the acidity model pH = −log[H+], where acidity (pH) is a measure of the hydrogen ion concentration [H+]

Use the acidity model pH = −log[H+], where acidity (pH) is a measure of the hydrogen ion concentration [H+] (measured in moles of hydrogen per liter) of a solution. Find the pH when [H+] = 1.55 ×... more

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Precalculus

09/23/22

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 = 13 years. (Round your answer to the nearest cent.) P = $

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Precalculus Math Calculus

09/22/22

I need precalculus help!! (function notation)

A tank has 16 gallons of water in it when water begins draining from the tank. (Recall that water weighs 8.345 pounds per gallon.)a. If 22 pounds of water have drained from the tank, how many... more

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Precalculus

09/21/22

How much of a(n) 70% orange juice drink must be mixed with 11 gallons of a 10% orange juice drink to obtain a mixture that is 50% orange juice?

in an integer or a decimal

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Answers •2

Precalculus

09/21/22

precalculussssss

Find the slope-intercept equation of the line that satisfies the given conditions.passes through (−5, 1) and is perpendicular to x − 2y = 8

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Precalculus Math Calculus

09/21/22

Compute: 123+234+…+n(n+1)(n+2)

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Precalculus Trigonometry

09/21/22

help please i dont know where i am wrong

A bicycle with 2424-inch diameter wheels is traveling at 1212 mi/h. Find the angular speed of the wheels in rad/min. Enter the exact answer. ω=ω= rad/min How many revolutions per minute do the... more

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Logarithm Problem

Writing each expression in factored form. (Polynomials)

Determine the linear function

Biologists have noticed a chirping of crickets

How much of each fertilizer brand (in lb) is needed to obtain the desired mixture?

Find the equation x^2 + y^2 + Dx + Ey + F = 0

Find the equation y = ax^2 + bx + c of the parabola that passes through the points. To verify your result, use a graphing utility to plot the points and graph the parabola.

Find the caloric content (in calories) of each item.

Use a graphing utility to solve the system of equations graphically. Round your solution(s) to two decimal places, if necessary.

Use a graphing utility to solve the system of equations graphically. Round your solution(s) to two decimal places, if necessary.

The supply and demand curves for a business dealing with wheat are Supply: p = 1.59 + 0.00016x^2 Demand: p = (2.388 − 0.008x)^2

What are the dimensions of a right triangle with a two-inch hypotenuse and an area of 1 square inch? (Enter the lengths of the sides as a comma-separated list.)

Use the equations for the total cost C and total revenue R to find the number x of units a company must sell to break even. (Round to the nearest whole unit.) C = 9.3 sqroot x + 15,000, R = 5.29x

Polynomial Functions

how do I solve?

Find b and c so that y = − 9 x 2 + b x + c has vertex ( − 3 , 3 ) .

How do you solve for h in the following equation: 48π =2πrh + 2πr^2

The number of bacteria in a culture is increasing according to the law of exponential growth. After 2 hours, there are 50 bacteria, and after 5 hours, there are 400 bacteria.

Use the acidity model pH = −log[H+], where acidity (pH) is a measure of the hydrogen ion concentration [H+]

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 = 13 years. (Round your answer to the nearest cent.) P = $

I need precalculus help!! (function notation)

How much of​ a(n) 70% orange juice drink must be mixed with 11 gallons of a 10% orange juice drink to obtain a mixture that is 50% orange​ juice?

precalculussssss

Compute: 1*2*3+2*3*4+…+n*(n+1)*(n+2)

help please i dont know where i am wrong

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How much of a(n) 70% orange juice drink must be mixed with 11 gallons of a 10% orange juice drink to obtain a mixture that is 50% orange juice?

Compute: 123+234+…+n(n+1)(n+2)