2h

#### 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.

5h

#### 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...
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6h

#### 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?

9h

#### 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

9h

#### 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...
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9h

#### 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?

9h

#### 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?

9h

#### 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.

9h

#### 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...
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9h

#### 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...
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11h

#### 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.)

12h

#### Put the following equation of a line into slope-intercept form, simplifying all fractions. 2x+6y=36

12h

#### Put the following equation of a line into slope-intercept form, simplifying all fractions. 2x+6y=36

12h

#### An object is placed in front of a converging lens with a focal length of 20.2 cm. For the object distance, find the image distance and the magnification.

(a) 10.1 cmlocation:magnification:

12h

#### Help Linear Algebra

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

12h

#### 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...
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12h

#### 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...
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