Raymond B.

There are 400 boxes arranged in 3 groups. The second group has twice as many boxes as the first group. The third group has 4 more boxes than the first group. How many boxes are in the first group?... more

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Algebra 1

07/12/21

Birdseed costs $0.69 a pound and sunflower seeds cost $0.99 a pound.

Birdseed costs $0.69 a pound and sunflower seeds cost $0.99 a pound. Angela Leinenbachs' pet store wishes to make a 50-pound mixture of birdseed and sunflower seeds that sells for $0.91 per a... more

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Math

07/12/21

A machine accepts nickels, dimes, and quarters. Exact change is needed. How many ways can a person with four nickels, three dimes, and two quarters make a 70-cent purchase from the machine?

A vending machine accepts nickels, dimes, and quarters. Exact change is needed to make a purchase. How many ways can a person with four nickels, three dimes, and two quarters make a 70-cent... more

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Calculus

07/12/21

Complete the square and reduce to the following form: y-b=A(x-a)^2 or x-a=A(y-b)^2

9x2-6y-9-x=0

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Geometry

07/12/21

I need help solving this please help me

In this triangle, = ?the triangle is a right angle between point A and B there is 4.24 between B and C is 3 in the corner of c is 90 degrees and A and C is 3

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College Algebra

07/12/21

(Determine the constant of proportionality.) v varies jointly as p and q and inversely as the square of s. (v = 3.5 when p = 4.3, q = 6.3 and s = 1.2 .)

Find a mathematical model representing the statement. (Determine the constant of proportionality.) v varies jointly as p and q and inversely as the square of s. (v = 3.5 when p = 4.3, q = 6.3 and s... more

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Calculus

07/12/21

Consider the following where s is in feet and t is in seconds.

s(t) = t3 + 4t2 + 4t + 15(a) Find v(t).v(t)=?(b) Find a(t).a(t)=?(c) Find v(3).(d) Find a(3).

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Algebra

07/12/21

Birdseed costs $0.54 a pound and sunflower seeds cost $0.84 a pound.

Birdseed costs $0.54 a pound and sunflower seeds cost $0.84 a pound. Angela Leinenbachs' pet store wishes to make a 50-pound mixture of birdseed and sunflower seeds that sells for $0.62 per a... more

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Math

07/12/21

I need two examples of converting a fraction into a decimal needing three decimal places and then into a percentage

I need two examples of converting a fraction into a decimal needing three decimal places and then into a percentage.

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Algebra

07/11/21

I need help solving these

consider the function y=f(x). describe the graph of each transformed function:(a) y= -f(x-2)-1(b) y= -f(-x)

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Math Math

07/11/21

Determine the open intervals on which the graph of f(x) =X2 +1/ X2 -4 is concave upward or concave downward.

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Mathematics

07/11/21

The figure shows a hexagon ABCDEF. Angle a = angle d = 100°, The other angles are of same size. Find the value of angle abc.

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Calculus

07/11/21

After a 5% increase, the population of a city is 117000.

After a 5% increase, the population of a city is 117000.After a 5% increase, the population of a city is 117000. What was the former population? (Remember: Do not use commas in your answer!)

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Calculus

07/11/21

Simplify the expression (1)

(-10x8y-6z-9)5 Give your answer using the form AxByCzD.

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Math Algebra 2 Statistics

07/10/21

Beth’s scores on the six Earth science tests she took this semester are: 100, 95, 55, 85, 75, 100 For this population, how many scores are within one standard deviation of the mean?

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Algebra

07/10/21

Why isn't slope run over rise?

Why isn't slope run over rise ? Why does run go first in the numerator?

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Math

07/10/21

Find an explicit formula for the beetle population after n weeks. Pn = After how many weeks will the beetle population reach 219? ____ weeks

A population of beetles are growing according to a linear growth model. The initial population (week 0) is P0=9, and the population after 6 weeks is P6=69.Find an explicit formula for the beetle... more

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Math

07/09/21

.Find an explicit formula for the beetle population after n weeks. Pn = After how many weeks will the beetle population reach 219? __ weeks

A population of beetles are growing according to a linear growth model. The initial population (week 0) is P0=9, and the population after 6 weeks is P6=69.Find an explicit formula for the beetle... more

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Algebra

07/09/21

What is the derivation of completing the square?

I don't want to see the geometrical way but algebraicly like how did the idea of completing the square came from?

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Math

07/09/21

Find the equation for the line that passes through the points ( 5 , − 8 ) and ( − 3 , 1 ) .

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Algebra

07/09/21

What is the proof of Descartes's rule of sign?

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Math

07/09/21

PLEASE HHELP!!! Bring the fraction:

b/7a^2c to a denominator of 35a^3c^3a/a-4 to a denominator of 16-a^2

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need two examples of addition of two decimals to the hundredths place with at least one carry.

need two examples of a decimal number to the tenths place minus a decimal number to the hundredths place.

A basketball player scored 27 times during one game. He scored a total of 51 points, two for each field goal and one for each free throw. How many field goals did he make? How many free throws?