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Nimfa-mama [501]
3 years ago
15

Which equations support the fact that rational numbers are closed under addition?

Mathematics
2 answers:
Zielflug [23.3K]3 years ago
7 0
I think this first answer choice is supposed to be "1/3+1/3=2/3" (If so then that's the correct answer) and the second one answer would be √9+√9=2<span>√9</span>
Talja [164]3 years ago
5 0
Do you mean
√9 + √9 = 2√9 


if so it is the answer
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Missy's rotation maps point K(17, –12) to K'(12, 17). Which describes the rotation? 270 degrees counterclockwise rotation 90 deg
enyata [817]

Answer:

The correct option is;

90 degrees counterclockwise rotation

Step-by-step explanation:

The coordinates of the preimage before rotation = K(17, -12)

The coordinate of the image of the preimage after rotation = K'(12, 17)

Therefore, the rotation transformation, transforms, the preimage (x, y) to the image (-y, x), which is equivalent to a rotation of 90 degrees counterclockwise

4 0
3 years ago
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Which of the following ordered pairs best describes the location of point B? help
alekssr [168]

Answer:

D

Step-by-step explanation:

7 0
3 years ago
The volume, V, of a rectangular prism is determined using the formula , where l is the length, w is the width, and h is the heig
Vinil7 [7]
In this problem, we need to solve for the measurement of the width of the rectangular prism on which the formula is Volume = length * width * height. Ther are given values such as length = 3.2 inches, height = 9.6 inches and volume = 138.24 cubic inches. Solving for the width, we have shown it below:
Volume = length * width * height
138.24 = 3.2 * width * 9.6
138.24 / (3.2*9.6) = width
4.5 inches = width 

The answer is 4.5 inches for the width of the rectangular prism.
8 0
3 years ago
write the equation of the line that is parallel to the line y=-5/3x-2 and goes throught the point (-3,1)
max2010maxim [7]

Answer:

y = (-5/3)x - 4

Explanation:

The equation of a line with slope m that goes through the point (x1, y1) is:

y-y_1=m(x-x_1)_{}

Additionally, two lines are parallel if they have the same slope.

The slope of the line y = (-5/3)x - 2 is (-5/3) because it is the number beside x.

So, the slope of our line is also -5/3.

Therefore, replacing m by -5/3 and (x1, y1) by (-3, 1), we get that the equation of the line is:

\begin{gathered} y-1=-\frac{5}{3}(x-(-3)) \\ y-1=-\frac{5}{3}(x+3) \end{gathered}

Finally, solving for y, we get:

\begin{gathered} y-1=-\frac{5}{3}x-(\frac{5}{3}\cdot3) \\ y-1=-\frac{5}{3}x-5 \\ y=-\frac{5}{3}x-5+1 \\ y=-\frac{5}{3}x-4 \end{gathered}

So, the answer is:

y = (-5/3)x - 4

4 0
1 year ago
I need a lot of help with this plz someone help!
Vitek1552 [10]

Answer:

36.50

Step-by-step explanation:

just add them all up

8 0
3 years ago
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