Questions by Doug Porter

Questions by Doug Porter

Use the formula Tn(x) = cos(n cos⁻¹ x) to find the Chebyshev polynomials T0(x), T1(x), T2(x), T3(x), and T4(x).

asked Dec 22, 2024

1 answer

3 votes

218k views

Find the value of ( y ) if the line through the two given points is to have the indicated slope. The points are ( (-5, y) ) and ( (-9, 4) ), with a slope ( m = -2 ). a) ( y = 0 ) b) ( y = -6 ) c) ( y =

asked Nov 25, 2024

1 answer

2 votes

37.7k views

What are the six dimensions of emotional intelligence?.

asked May 26, 2024

1 answer

1 vote

2.4k views

A hexagon has two sides that are equal. The two equal sides are ______ inches longer?

asked Apr 6, 2024

1 answer

4 votes

44.3k views

The Claymore M18A1 is best employed against ____? a) Tanks b) Personnel c) Aircraft d) Submarines

asked Mar 11, 2024

1 answer

4 votes

520 views

Maggie is the head chef and used 17 and 4/5 pounds of sugar baking cookies, 13 and 1/2 pounds baking pies, and 22 and 3/4 pounds baking brownies. How much sugar did she use altogether? a. 53 and 3/20 pounds

asked Mar 10, 2024

1 answer

0 votes

157k views

In how many ways can 5 students line up for lunch

asked Nov 23, 2023

1 answer

2 votes

178k views

Using the system of equations are these two equations independent or dependent. -4x-2y=10 and y=-2x-5

asked Oct 3, 2023

1 answer

1 vote

34.0k views

how relevant are patriarchy, inequality, and social stratification to understanding gender-based violence against women and children in contemporary South Africa

asked Aug 16, 2023

1 answer

3 votes

191k views

Is it possible to have a right triangle with 2cm, 3cm and 5cm as sides?

asked Jul 17, 2023

2 answers

11 votes

99.7k views

In a collection of nickels and dimes the number of dimes is 3 more than twice the number of nickels. If the value of the collection is $1.80, how many nickels are there?6 7 1524

asked Feb 19, 2023

1 answer

2 votes

55.8k views

What does CEREBR mean Medical abbreviations (ROOT WOOD)

asked Feb 18, 2023

1 answer

24 votes

206k views

Is there an animal that doesn't carry a virus? I need this for a project in healthcare about creating my own pandemic that doesn't exist and I dont know what my reservoir (the place the virus stay for

asked Feb 3, 2023

2 answers

14 votes

19.5k views

What is the height of a 2.0 kilogram ball that is held above the floor and has 39 joules of potential energy ?

asked Sep 16, 2022

1 answer

24 votes

232k views

Which of the following is NOT one of the 5 major climate zone A. Dry B. Tropical C. Continental D. Tundra

asked Jun 17, 2022

2 answers

12 votes

159k views

How reliable and unbiased do you think the main sources of your existing knowledge of this topic are?

asked Jun 4, 2022

1 answer

10 votes

10.1k views

I need help with this poem that i am writing for school and I would like to know what you guys think and if their is anything i need to change.

asked Mar 14, 2022

1 answer

0 votes

233k views

If red and blue light rays fall with the same angle of incidence on the separating surface between two different transparent media, then the ratio between the refraction angle of the red light and the

asked Feb 21, 2022

1 answer

16 votes

66.2k views

"Leaders are always taken as role models” What does it mean?

asked Feb 14, 2022

1 answer

4 votes

153k views

Paul just graduated from college and landed his first "real" job, which pays 37,900 a year. In 13 years, what will he need to earn to maintain the same purchasing power of inflation averages 3 percent?

asked Dec 8, 2021

1 answer

0 votes

140k views

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