04/27/23

Convert the polar coordinate (6, 2𝝅/3) to Cartesian coordinates.
X=?Y=?
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04/27/23

Write an equation modeling this situation
A radioactive isotope has a half life of 1,920 years let f(t) be the amount of isotope, in milligrams, that is present after t years. If the sample originally contained 21 milligrams, write an... more
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04/27/23

Convert the Cartesian coordinates to polar coordinates, 0 ≤ θ < 2𝝅
I know r=√8 but how do I find the answer for θ?
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04/27/23

Convert the Cartesian coordinates to polar coordinates, 0 ≤ θ < 2𝝅, r >0
#1: Coordinate (2,5)R=√29θ=?I've found the answer to R but how do I solve for theta?
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04/27/23

What is the approximate distance the helicopter flew in miles?
A helicopter flies from the airport on a course with a bearing of 21°. After flying for 96 miles, the helicopter flies due east for some time. The helicopter flies back to the airport with a... more
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04/27/23

The sum of the digits of a two-digit counting number is 11. If the digits are reversed, the new number is 27 greater than the original number. What is the original number?
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04/27/23

How many pounds of seed are needed per acre

It takes 31 pounds of seed to completely plant a 5-acre field. How many pounds of seed are needed per acre
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04/27/23

Albert raced 3 times as fast as Bernard. In fact, Albert raced 45 miles in 3 hours less than it took Bernard to race 30 miles. How fast did each of them race? What were the times of each racer?
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04/27/23

There are 49 pennies, nickels, and quarters in a drawer. If their combined value is $2.41, and the number of pennies exceeds the number of nickels by 8, how many of each type are there?
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04/26/23

Word equation, algebra

The sum of two numbers is 30 and their difference is 10. What are the two numbers?
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04/26/23

Algebra one, speed
The bicyclists were 300 miles apart at 3 p.m. and were headed toward each other. If they met at 9 p.m. and one was traveling 20 miles faster than the other, what was the speed of each bicyclist.
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04/26/23

What's between 3/4 and 4/4?
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04/26/23

Min-jun read 2/3 of a magazine in 1/9 of an hour. Find the rate in magazines per hour.

Find the rate per hour
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04/26/23

How to find sin(ι-β)=
I was given this problem and don't know how to solve it.
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04/26/23

-If the perimeter of the equilateral triangle is 180 cm, what will be its area?
-If the perimeter of the equilateral triangle is 180 cm, what will be its area?-A rectangular garden is 5 ft longer than it is wide. Its area is 3900 ft2. What are its dimensions? -The area of a... more
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04/26/23

Professor Burger found that the experimental probability of his making a strike in bowling is 20%. Out of 400 throws, about how many could he predict would be strikes?
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04/26/23

Rates of Decay Reactions
Thallium-201 is used medically to diagnose heart problems. The half-life of thallium-201 is 72.9 hours. If you begin with 39.8 mg of this isotope, what mass remains after 200 hours have passed?
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04/26/23

Write an equation that expresses the following relationship.
Write an equation that expresses the following relationship.p varies directly with d and inversely with uIn your equation, use k as the constant of proportionality.
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04/26/23

Rates in calculus
Suppose that we are pumping water into a tank at a rate of r(t) = t/ (t^2+1) gallons/minutes. At t=0 the tank may or may not be empty. Is the amount of water in the tank strictly increasing,... more
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04/26/23

A man borrowed an amount of P150,600 to bank that offers an interest rate of 5.36% compounded continuously and has a maturity date of 6 years.
A man borrowed an amount of P150,600 to bank that offers an interest rate of 5.36% compounded continuously and has a maturity date of 6 years. He plans to pay the loan at an amount of P15,800 at... more
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04/26/23

Draw a right triangle with Cos 60 = 0.5 Label the sides.
Draw a right triangle with Cos 60 = 0.5 Label the sides.If you are unable to draw it here, answer below the sizes of each side of the triangle. What is the length of the hypotenuse? What is the... more
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04/26/23

Simplify the expression by using a double-angle formula.
cos^2 34 degree - sin 34 degree
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04/26/23

Find b and c so that y=9x^2+bx+c has a vertex of (4,9)
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04/26/23

To estimate the height of a building.
How would I go about solving this equation? If possible, please explain in details how you solved it.To estimate the height of a building, two students find the angle of elevation from a point (at... more
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04/26/23

math for 7th grade
Two angles of a quadrilateral measure 185° and 135°. The other two angles are in a ratio of 3:5. What are the measures of those two angles?
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