Partial Derivatives

Find the first partial derivatives of the function.z = (4x + 5y)7z/x=z/y=

Partial Derivatives

Find the first partial derivatives of the function.g(x, y) = 5 ln(4x + ln y)

If sin x=1/3, x in quadrant 1, then find (without finding x)

Sin (2x)=?Cos (2x)=?Tan (2x)=?How would I solve this equation? If possible, please explain how you solved it.

Find the value of the constant 𝑐 that makes the following function continuous on (−∞,∞) .

f(y)={ cy+8 if y ∈ (-oo,6] cy^2-8 if y ∈ (6,oo)C=

Elements in a range (python)

I am stuck on a python homework question and I was wondering if I could get some help. The question goes like this:"Write a program that first gets a list of integers from input. That list is... more

Probability with lollipops

A bag has 3 RED lollipops, 7 BLUE lollipops, and 7 BLACK lollipops. You randomly pull a lollipop from the bag, put it back, and then pull out another one. What is the probability of not getting a... more

Solving Quadratic Equations With Square Roots

Find the radius of a globe with a surface area of 804 square inches. Round your answer to the nearest inch. I have to use the equation S=4πr2. How would I complete this problem?

Stuck on chemistry problem due tonight

What is the pH and pOH of a solution that was made by adding 245 mL of water to 500 mL of 4 * 10 ^ - 4 M HF solution?PH?round to 1 decimal placepOH 1 decimal place

Stuck on chemistry problem due tonight

What is the pH and pOH of a solution made by adding water to 23.2 grams of calcium hydroxide until the volume of the solution is 2500 ? (Hint: solve for molarity first !pOH?round to 1 decimal... more

please need help

shaquana kicks a football. its height in feet is given by h=−16t^2+16t where t represents the time in seconds after kick. after how many seconds does the football hit the ground?

please need help

shaquana kicks a football. its height in feet is given by h=−16t^2+16t where t represents the time in seconds after kick. after how many seconds does the football hit the ground?

The graph of a function y=f(x) is shown. Make a sketch of the antiderivative F, given that F is continuous and F(0)=3.

The graph of a function y=f(x) is shown. Make a sketch of the antiderivative F, given that F is continuous and F(0)=3.

An object moves along a coordinate line with acceleration a(t)=t^3+9t^2+27t+27 units per second per second. The initial velocity is 22 units per second. The velocity function is v(t)=

An object moves along a coordinate line with acceleration a(t)=t^3+9t^2+27t+27 units per second per second.The initial velocity is 22 units per second.The velocity function is v(t)=The initial... more

A forest fire covers 1400 acres at time t=0. The fire is growing at a rate of 6√t acres per hour, where t is in hours. How many acres are covered 23 hours later?

A forest fire covers 1400 acres at time t=0. The fire is growing at a rate of 6√t acres per hour, where t is in hours. How many acres are covered 23 hours later?

10h

In 1923, the United States Army set a record for in-flight refueling of airplanes. Using two refueling planes, an Airco DH-4B biplane was able to remain in flight for 37 h. During the flight, the re

In 1923, the United States Army set a record for in-flight refueling of airplanes. Using two refueling planes, an Airco DH-4B biplane was able to remain in flight for 37 h. During the flight, the... more

find the sample size

Given a normal distribution with 𝜎 = 1.790. Find the required sample size for a 90% confidence level (estimating the mean) with a 1.02 margin-of-error.

11h

Acids and Bases - Buffers

Buffer Systems Operate In A Roughly 2.0 PH Unit Range, Centered Around What Value? (Hint: Think Henderson-Hasselbalch Equation.)

Help Linear Algebra

Find formulas for the entries of M^n, where n is a positive integer. (Your formulas should not contain complex numbers.)

pre calc question 10

A car was valued at $25,000 in the year 1992. The value depreciated to $10,000 by the year 2001.A) What was the annual rate of change between 1992 and 2001? r =  Round the rate of decrease to 4... more

pre calc question 9

A house was valued at $105,000 in the year 1994. The value appreciated to $165,000 by the year 2006.A) What was the annual growth rate between 1994 and 2006?r =  Round the growth rate to 4 decimal... more

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