MATHEMATICS MIDDLE SCHOOL

Which is the polynomial function of lowest degree with rational real coefficients, a leading coefficient of 3 and roots sqrt 5 and 2
Which is the polynomial function of lowest degree with rational - 1

Answers

Answer 1
Answer:

Answer:

f(x) = 3x² -21x + 30

Step-by-step explanation:

Polynomial function of lowest degree with roots as 'a' and 'b' and leading coefficient as 'c' is given by:

P(x) = c (x - a) (x - b)

Given: Leading coefficient = 3, Roots = sqrt 5 and 2

P(x) = 3 (x - 5) (x - 2)

      = 3 ( x² - 2x - 5x +10)

       = 3 ( x² - 7x +10)

       = 3x² - 21x + 30

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What is the least common multiple of 18,20 and 24?
2b+8-5b+3= -13 -8b-5

Which description best describes the solution to the following system of equations? (20 points)y = −one halfx + 9
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d. Line y = −one halfx + 9 intersects line y = x + 7.

Answers

Answer:

There will be 24 millimeters in 1/6 of an hour

Step-by-step explanation: because there is an mathematical expression

Write an equation to solve this problem: Twenty-four is 25 percent of what number? Find the answer .

Answers

24 times 100 then divide that by 25

Sam wants to meet his friend Beth at a restaurant before they go to the ththeaterThe restaurant is nine kilometers south of the ththeaterPlot and label a point representing the restaurant. what are the coordinates of the point?

Answers

I suppose the restaurant's coordinates are (0, -9), but it is all relative, unless the coordinates of the restaurant have a y-value 9 less than the coordinates of the theater

The book Doug is reading is 280 pages long.He has read 84 pages so far.What percent of his has Doug read

Answers

Hi there, this is simple, all you have to do is 280 divided by 84, and multiply it by 100, 280÷84=3.333, 3.333×100=333.33. Therefore, the percent is 333.33%
84 divided by 280 is 0.3
0.3x100=30
so your answer is 30%

hope this helps :)

Please help pic below

Answers

well it depends what 'v' stands for

well all you need to do is replace the v with the number it stands for. For example if v=2 then the expression would be 4.2(2) - 5 - 6.5(2)
Then you use the order of operations. first you multiply

8.4 - 5 - 13

then you subtract from left to right 

8.4 - 5 = 3.4

3.4 - 13 =  -13 - 3.4 = -9.4

So IF v=2 (I used 2 as an example, V might not = 2 in your case) then the
answer will be -9.4  

I hope this helped you :3

Angelo ride his bike around a bike trail that was 1/4 of a mile long.he rode his bike around the trail 8 times .Angelo says he rode a total of 8/4 miles

Answers

Angelo rode his bike around the bike trail for 2 miles , 8 x 1/4 = 8/4 = 2 miles
all u have to do is 1/4×8 =8/4so he is correct
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