Katya S.

A.) Find the solutions of the equation. (Give your answers in the form a + bi, where a and b are real numbers. Enter your answers as a comma-separated list.)x6 + 729 = 0B.) Find the solutions of... more

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Math Algebra 1 Algebra 2

07/18/21

Alg 2 question. Need help thank you!

A. For what domain are f(x) = x2 and inverse functions? Make sure you use set builder notation. B. Explain how you can tell that f(x) = x3 and are inverse functions. Explain.C. List two more... more

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Calculus

07/18/21

absolute minimum value equal to= and an absolute maximum value

Consider the function f(x)=2x^3+6x^2−90x+7, −5≤x≤4.This function has an absolute minimum value equal to= and an absolute maximum value equal to=

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Computer Science

07/17/21

Trouble starting a payroll program on Python. How to to force the number to be 0 or positive.

Write a program to calculate gross income and net income for all employees in a company. The user will input how many employees each time this program is executed. Number of employees can be zero,... more

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Trigonometry

07/17/21

Find sin ( u /2 ) if sin u = 0.231

and u is in Quadrant-II.sin(u/2)=

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Algebra 1

07/15/21

Levers Algebra 1

Where must the fulcrum be located if a 250-pound weight and a 300-pound weight balance when placed on each end of an 11-foot bar?

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Math Geometry Algebra

07/15/21

Mixture word problem

A chemical company makes two brands of antifreeze. The first brand is 70% pure antifreeze, and the second brand is 90% pure antifreeze. In order to obtain 120 gallons of a mixture that contains 75%... more

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Algebra 1

07/15/21

4x+y=41 4x-2y=38

solve for y

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Calculus

07/14/21

5.find the concavity and inflection points if exist. 6 also find relative extrema.

5. Let f(x) = (- cos x + sin x) over the interval [-,]. Use the first and second derivatives off to determine where f is increasing, decreasing, concave up, and concave down. Locate all inflection... more

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Geometry

07/13/21

What’s the equation of a circle whose radius is 16 units and center is at (2,-5)

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Algebra 2 Precalculus Algebra

07/12/21

Transformation Function

If the point (-3,2) lies on the graph of y=f(x), use the transformation theorem to find the point on the graph of the transformed functiona) y=-3f(x-3)+2.5b) y=f(2x+1)-3

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Calculus

07/12/21

Calculus 3 Vector

Given v = 8i+4j and p = 9i−4j, find |v + p| and |v| + |p|.

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Algebra 2

07/11/21

What’s the answer to this problem

At a concession stand, three hot dogs and two hamburgers cost $9.75; two hot dogs and three hamburgers cost $10.25. Find the cost of one hot dog and the cost of one hamburger.

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Algebra 1 Urgent

07/11/21

Urgent Algebra 1 money problem

The boys have a small game going in the backroom. Mr. X decides to pull out and finds he has $194. If he has four times as many $1 bills as $5 bills, one-fifth as many $2 as $5 bills, and the same... more

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Calculus Volume Integral

07/10/21

How would i find what a and b are?

Set up an integral that computes the volume of a cone of height 12 whose base is an ellipse with semi-major axis 6 and semi-minor axis 4. The area formula for an ellipse is pi(a)(b), where a is the... more

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