05/10/23

9th Grade Math. Functions revie

The value of an antique car is modeled by the functionV(x) = 107,000(1.009)(3x)where x is the number of years since 2005. What is the value of the car in 2011?
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05/10/23

So lost on finding the equation
A chemist has three different acid solutions. The first acid solution contains 15% acid, the second contains 25% and the third contains 65%. They want to use all three solutions to obtain a mixture... more
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05/10/23

What is the greatest common factor of 48 and 120?
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05/10/23

What is the equation of the line that passes through the point (−7,4) and has an undefined slope?
the equation
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05/10/23

what repersents "3 less than the product of m and 5"
3 - m x 5, m x 5 - 3, 3 - m ÷ 5, m ÷ 5 - 3 witch one?
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05/10/23

suppose you want to knnow the height of abuldine. A 20 foot tall light post casts a shawdow that is 12 feet long.the showdow cast by the building is 660 feet tall
suppose you want to knnow the height of abuldine. A 20 foot tall light post casts a shawdow that is 12 feet long.the showdow cast by the building is 660 feet tall
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05/10/23

the perimeter of a rectangle is 65 centimeters . the lenght is 5 centimeters less than twice the width . what is the lengths of the rectangle
the perimeter of a rectangle is 65 centimeters . the lenght is 5 centimeters less than twice the width . what is the lengths of the rectangle
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05/10/23

the perimeter of a rectangle is 65 centimeters . the lenght is 5 centimeters less than twice the width . what is the lengths of the rectangle
the perimeter of a rectangle is 65 centimeters . the lenght is 5 centimeters less than twice the width . what is the lengths of the rectangle
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05/10/23

How much money should be deposited today in an account that earns 5% compounded semiannually so that it will accumulate to $8000 in four years
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05/10/23

Given P (A) = 0.65 P(A)=0.65, P (B) = 0.42 P(B)=0.42 and P ( A∣B ) = 0.8 P(A∣B)=0.8, find the value of P ( A and P) P(A and B), rounding to the nearest thousandth, if necessary.
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05/10/23

. Wesley and Brian have a total of 87 baseball cards. Wesley has 30 less than twice as many cards as Brian. How many baseball cards do they each own?
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05/10/23

Find the standard form of the equation of the hyperbola with the given characteristics. Vertices: (±4, 0); foci: (±5, 0)
Find the standard form of the equation of the hyperbola with the given characteristics.Vertices: (±4, 0); foci: (±5, 0)
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05/10/23

Rotate the axes to eliminate the xy-term in the equation. xy − 5 = 0
Rotate the axes to eliminate the xy-term in the equation. Then write the equation in standard form. (Use xp for x' and yp for y' in your answer. Rotate the coordinate axes through an... more
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05/10/23

Help for part A and B
A. Plot the point given in polar coordinates.4, -3π/4B.Find three additional polar representations of the point, using  −2𝜋 < 𝜃 < 2𝜋. (Enter your answers in order from smallest to largest... more
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05/10/23

Optimization Question
A "cross" is inscribed in a circle of radius 9 (see diagram below). The cross is symmetric, so each outer edge (the ones in purple) has the same length, say 2x. We seek to find x so that the area... more
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05/10/23

Evaluate the expression. Express the result in scientific notation. (1.2 x 10^4)(3.2 x 10^-6)
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05/09/23

Precalculus question
At the beginning of an experiment, a scientist has 272 grams of radioactive goo. After 225 minutes, her sample has decayed to 17 grams. What is the half-life of the goo in minutes?     Find a... more
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05/09/23

Word problem, algebra

Blues vary inversely as purples cubed. When there are 250 blues, there are 2 purples. How many blues are present when there are 5 purples?
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05/09/23

Distance, algebra

The distance a body falls varies directly as the square of the time that it falls. If it falls 972 meters in 18 seconds, how fa will it fall in 2 seconds?
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05/09/23

Intrest, money, algebra

Gretchen deposited $7000 in an account that earns 2% interest compounded annually..(a) Write an equation that expresses the amount of money in the account as a function of n, where n equals the... more
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05/09/23

solve for x. Cos (x)= 10/17
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05/09/23

given cosx=1/4, cscx<0 find cos2x then find tanx/2
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05/09/23

Precalculus question
Find the time required for an investment of 5000 dollars to grow to 6500 dollars at an interest rate of 7.5 percent per year, compounded quarterly. Your answer is t=    years.
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05/09/23

pre calc question
The doubling period of a bacterial population is  10 minutes. At time t=110 minutes, the bacterial population was 50000.What was the initial population at time t=0?    Find the size of the... more
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05/09/23

lester mandy and nancy have 783 stamps togethr.
lester mandy and nancy have 783 stamps togethr.lester gives 20 stamps to mandy,and 40 stamps to nancy.lester now has thrice as many stamps as mandy.mandy now has twice as many stamps as... more
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