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Cerrena [4.2K]
3 years ago
15

Which expression is equivalent to 30(1/2x-2)+40(3/4y-4)?

Mathematics
2 answers:
barxatty [35]3 years ago
7 0

Answer: The answers (C)

Step-by-step explanation:

nikitadnepr [17]3 years ago
4 0
15x-60+30y-160
= 15x+30y-220
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Mrs. Allard asked her students to identify which of the polynomials below are in standard form and explain why.
ANEK [815]

Answer:

Only II. is written in standard form

Step-by-step explanation:

The three polynomials given are:

I. 15x^4 - 6x + 3x^2 - 1

II. 12x^3 + 8x + 4

III. 285 + 8x^2 + 10%

A polynomial is said to be in standard form when the variables are written in terms of descending powers i.e. the term with the highest power first, followed by the next and so on.

Examining the three polynomials I, II and III, there is only one which follows this rule and that is:

II. 12x^3 + 8x + 4

The term with the highest power (3) came first, followed by the term with the next degree of power (1) and the last term with degree of power as 0.

Hence, only II. is written in standard form.

3 0
3 years ago
Round 13.406 to the nearest hundredths
hjlf
13.41 is 13.406 rounded to nearest hundreth
8 0
3 years ago
Read 2 more answers
Use the data set shown below to complete the sentence.
svlad2 [7]

Answer:

is greater than

Step-by-step explanation:

Mean: sum of numbers ÷ how many numbers there are

3 + 3 + 4 + 5 + 5 + 9 = 29

29 ÷ 6 = 4.83333

Median: middle number

<u>3</u>   <u>3</u>   4   5  <u>5</u>  <u>9</u>  

4 + 5 = 9

9 ÷ 2 = 4.5

4.83333 > 4.5 so the mean is greater than the median.

Hope that helps. :)

3 0
3 years ago
Find the coordinates of point) along the directed segment AB that partitions it so that the ratio of AP to PB is 1:2. NO LINKS O
aleksandr82 [10.1K]

Answer: (1, 3)

Step-by-step explanation:

There are two ways to solve this problem, 1 without the pythagorean theorem, and 1 with it.  For the sake of simplicity, I will solve it without the pythagorean theorem.

As is visually evident from the graph, the line segment spans 6 units horizontally, and 3 units vertically.  Because the ratio between AP and PB is 1:2, simply divide both the domain and range by 3, to get 2 horizontally, and 1 vertically.  

Then, simply go to point A and respectively add and subtract the horizontal and vertical values to get point A(-1, 4) --> P(1,3)

Hope it helps, and let me know if you want me to solve it an alternate way or go more in depth as to the way it is know.

3 0
3 years ago
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The equation of circle C is (x-8)^2+(y+3)^2=49. Find the center and radius of circle C.
Dominik [7]
C is the best option and compare it with the equation of circle to get values

3 0
3 years ago
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