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crimeas [40]
3 years ago
9

What property is 2 + (8 + 3) = (2 + 8) + 3​

Mathematics
1 answer:
spayn [35]3 years ago
5 0

Answer:

Step-by-step explanation:

The property is commutative property because the numbers can be moved or swapped without making the answer different.

Not sure

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Consider that point A is reflected across the y-axis. What is the distance between point A and the point of its reflection?
Arisa [49]

Answer:

C

Step-by-step explanation:

Under a reflection in the y- axis

a point (x, y ) → (- x, y ), thus

A(3, 4 ) → A'(- 3, 4 )

Since the point A and it's reflection lie on a horizontal line then

distance between = | 3 + 3 | = | 6 | = 6

7 0
3 years ago
Point a is at -2,4 and point c is at 4,7. Find the coordinates of point b on ac such that the ratio is 1:3
Andrews [41]

We have been given that point a is at (-2,4) and point c is at (4,7). We are asked to find the coordinates of point b on segment ac such that the ratio is 1:3.

We will use section formula to solve our given problem.

When point P divides a segment internally in the ratio m:n, the coordinates of point P would be:

[x=\frac{mx_2+nx_1}{m+n}, y=\frac{my_2+ny_1}{m+n}]

Let point (-2,4)=(x_1,y_1) and point (4,7)=(x_2,y_2).

[x=\frac{1(4)+3(-2)}{1+3}, y=\frac{1(7)+3(4)}{1+3}]

[x=\frac{4-6}{4}, y=\frac{7+12}{4}]

[x=\frac{-2}{4}, y=\frac{19}{4}]

[x=-0.5, y=4.75]

Therefore, the coordinates of point 'b' would be (-0.5,4.75).

6 0
4 years ago
NEED HELP ASAP!!!!!
Sonbull [250]
Part A:

An isometric transformation is a type of transformation where the original shape and size of the pre-image is not altered in the image.

To show that the translation was an isometric transformation, we show that the distance between any two points in the pre-image is equal to the distance between the corresponding points in the image.

Consuder, line AB, the distance between point A and point B is given by:

d= \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}  \\  \\ = \sqrt{(-1-(-6))^2+(0-0)^2} = \sqrt{(-1+6)^2+0^2}  \\  \\ = \sqrt{5^2+0} = \sqrt{25} =5

The distance between point A' and point B' in the image is given by:

d= \sqrt{(3-(-2))^2+(4-4)^2}  \\  \\ = \sqrt{(3+2)^2+0^2} = \sqrt{5^2+0}  \\  \\ = \sqrt{25} =5

Similarly checking other points of the pre-image against the corresponding points of the image shows that the size of the pre-image is preserved in the image.



Part 2:

The translation that maps the triangle ABC onto its image are:
Triangle ABC was shifted 4 units to the right.
Triangle ABC was shifted 4 units up.
8 0
3 years ago
Read 2 more answers
Ceasar opens a bank account and makes an initial deposit of $800. The banker tells Ceasar that he is going to receive an annual
Vikki [24]
Ceasar opens a bank account and makes an initial deposit of $800. The banker tells Ceasar that he is going to receive an annual rate of 10% compounded continuously on his investment. Find the bank balance assuming Ceasar leaves the account untouched for 8 years.


Can you please do the problem using the formula A(t)=pe^(rt).
6 0
3 years ago
One restaurant sells a family meal for $22 plus $2 per drink.
xz_007 [3.2K]

Answer:

the 2$ resturant needs 11 and the $1.50 needs 16

Step-by-step explanation:

division

7 0
2 years ago
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