499 Answered Questions for the topic Mathematica

Mathematica Math Algebra 1 Algebra 2

01/11/23

Find the center and radius of the circle

with a diameter that has endpoints (− 2, 7) and (9, − 4)Center as an order pair and radius as a decimal correct to three decimal places
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Mathematica

01/11/23

The length of a rectangle is triple the width decreased by 5. Find the dimensions of the rectangle if it has an area of 112 cm

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Mathematica Math Algebra 1 Algebra 2

01/11/23

Find the distance between
(-17,13) and (11, -13). Make sure to fully simply the radical answer.
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Mathematica Math Algebra 1 Algebra 2

01/10/23

Find the standard form for the equation of a circle

(x − h) ^2 + (y − k) ^2 = r^2 with a diameter that has endpoints (− 10, 7) and (10, − 6).
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Mathematica Elementary Education

01/10/23

Need help with math homework?

Math help for grades k-8
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Mathematica

01/06/23

Lin’s father is paying for a $20 meal. He has a 15%-off coupon for the meal. After a discount, a 7% sales tax is applied. What does Lin’s father pay for the meal?
Lin’s father is paying for a $20 meal. He has a 15%-off coupon for the meal. After a discount, a 7% sales tax is applied. What does Lin’s father pay for the meal?
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Mathematica Math Geometry

01/06/23

The equation of line a is y=1/2x−1, and it passes through point (6,2). Line b is perpendicular to line a, and it passes through point (−6,2).
A: What is the slope of line b?B: What is the y-intercept of line b?Select two answers: one for A and one for B.Responses: B: 1 B: -10 A: 2 B: -1 A: -1/2 A: −2 B: 5 A: 12
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Mathematica

01/03/23

need help!! please
A phone company charges a monthly fee of $13$13 plus 1212 cents per text message. Another company charges $20$20 each month plus 88 cents per text message for the same plan.How many text messages... more
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Mathematica

12/29/22

Write an equation of the ellipse with foci at (0, ±3) and co-vertices at (±3, 0).
whats the equation of the ellipse with foci at (0, ±3) and co-vertices at (±3, 0).
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Mathematica

12/27/22

How to represent the costing of renting the karaoke machine using piecewise funtion?
During holidays karaoke machine is very in demand because Filipinos loves to sing. Jocelyn’s karaoke machine can be rented 2, 000 pesos for the first three days and additional 550 pesos for the... more
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12/15/22

Difficulty Understanding This Need Help Please
In a learning experiment involving memory, subjects were given a certain amount of time to study the objects laid out on a table. Later, they were asked to recall as many items as they could. The... more
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12/14/22

Help Much Appreciated Analyse and explanations
A housing estate has 100 residents who are concerned about security. The accompanying table gives the total cost of hiring a 24-hour security service as well as each individual resident’s total... more
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Mathematica

12/14/22

an account has a rate of 2.7% find the effective annual yeild if the interest is compounded semiannually
an account has a rate of 2.7% find the effective annual yeild if the interest is compounded semiannually
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12/12/22

Need help please
An endangered species of marsupials has a population of 462, however, following a successful breeding program the population is expected to increase by 12% each year. Find an expression for the... more
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12/12/22

Need helping answering this question please
Suppose a monopolist’s total cost function is given by 𝑐 = 0.004𝑞3 + 30𝑞 + 7000, and the revenue function is 𝑟 = 𝑞(1200 − 6𝑞), where 𝑐 is measured in dollars and 𝑞 is measured in tonnes per... more
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12/12/22

Don't know what formula to use Need Help please
The mass, 𝑀, (measured in grams) of radioactive substance remaining after 𝑦 years is given by: 𝑀 = 1400𝑒−0.03𝑦 Find the mass remaining after 10 years. Find the time taken for the mass to reach 10%... more
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12/12/22

Really Need Help I seriously do not get this
When a new pain killing drug is administered, the effect (in efficacy units) is modelled by, 𝐸(𝑥) = 640𝑥𝑒−2.8𝑥, where 𝑥 ≥ 0 is the time in hours after the drugs are given. How effective is the drug... more
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12/12/22

Please Help needed much appreciated
In a learning experiment involving memory, subjects were given a certain amount of time to study the objects laid out on a table. Later, they were asked to recall as many items as they could. The... more
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12/12/22

Please need help to understand this
A competitive skate board jumper comes off the ramp according to the function:r(t) = −4.3t2 + 20t, where t measures seconds after he jumps. If the ramp he jumps off is 6 metres above the ground,... more
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Mathematica

12/10/22

P(x)=x^3+2x^2-7x+5, a=4

P(x)=x^3+2x^2-7x+5, a=4
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12/09/22

Questions I am having difficulty understanding
Fred owns 10 hectares of farming land. He can farm the land himself producing a crop worth $240,000. The explicit costs involved are 60,000. His best alternative is to rent the land to his... more
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12/09/22

True or False Questions With Explanation Why The Answer Is So
1.Suppose that bushfires in North-West Victoria destroys many of the citrus farms. As a result, theprice of oranges rises from $0.40 to $0.80, the price of a tangelo rises from $1.20 to $2.00, and... more
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Mathematica

12/08/22

solve the world problems

the school that kristen goes to is selling tickets to the annual talent show. on the first day of ticket sales the school sold 1 senior citizen ticket and 6 child tickets for a total of $40. the... more
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Mathematica

12/07/22

why is the function x^2 is not an exponential functiin, but 2^x is an exponential function?
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Mathematica Math Science Geography

12/06/22

The maximum effective precipitation for a basin is shown in the table below.

Determine the hydrograph. The basin has the following characteristics drainage area of 27 km2 , the length of the river is 8 km and the gradientTime (h) Precipitation (mm) 1 7 2 10 3... more
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