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Gelneren [198K]
3 years ago
9

Under which operations are polynomials closed

Mathematics
1 answer:
Helga [31]3 years ago
6 0
Addition,subtraction,and multiplication
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What is the Median? Data set A) 12, 14, 16, 23, 31, 45
zhannawk [14.2K]
The median is 19.5. 16+23 is 39. 39/2 is 19.5
8 0
3 years ago
Read 2 more answers
Graph ARST with vertices R(6, 6), S(3, -6), and T(0, 3) and its image after a
padilas [110]

Answer:

The answer is the second figure and the vertices of Δ R'S'T' are:

R' = (-6 , 6) , S' = (-3 , -6) , T' = (0 , 3)

Step-by-step explanation:

* Lets revise some transformation

- If point (x , y) reflected across the x-axis

 ∴ Its image is (x , -y)

- If point (x , y) reflected across the y-axis

 ∴ Its image is (-x , y)

- If point (x , y) reflected across the line y = x

 ∴ Its image is (y , x)

- If point (x , y) reflected across the line y = -x

 ∴ Its image is (-y , -x)

- Now we can solve the problem

∵ R = (6 , 6) , S = (3 , -6) , T = (0 , 3), they are the vertices of ΔRST

- The triangle RST is reflected over the y-axis

- According to the rule above the signs of x-coordinates will change

∵ R = (6 , 6)

∴ Its image is (-6 , 6)

∵ S = (3 , -6)

∴ Its image is (-3 , -6)

∵ T = (0 , 3)

∴ Its image is (0 , 3)

* Now lets look to the figure to find the correct answers

- The image of Δ RST is ΔR'S'T'

∵ The vertices of the image of ΔRST are:

  R' = (-6 , 6) , S' = (-3 , -6) , T' = (0 , 3)

* The answer is the second figure

7 0
3 years ago
Please Help! I need within 5 minutes!
Phoenix [80]

Answer:

its the first question i think it might be wrong idk

Step-by-step explanation:

because when you find the area you multiply two sides so you have to add 10 and 5 and then multiply it by 18

3 0
3 years ago
60 is what percent of 1200
k0ka [10]

Answer:

60 is 5$ of 1200

Step-by-step explanation:

Find the value of the ratio 60/1200 and then multiply the result by 100%:

(1/20)(100%) = 5%

3 0
3 years ago
What is the fewest pairs of corresponding parts that have to be congruent to establish that two triangles are congruent? Once yo
sveticcg [70]

It seems there are always three pairs: SSS, side side side; SAS, side angle side; ASA, angle side angle.

For a right triangle (HL, LL) it seems there are only two items needed, but that's because we already know one angle (it's right).

Once we have congruent triangles, all the corresponding parts are congruent.  That's three sides and and three vertices, so I'd answer six.  Of course almost everything about the triangles is the same, the area, the perimeter, etc.



3 0
3 years ago
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