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VARVARA [1.3K]
3 years ago
15

Select all that apply. A point is reflected over the y-axis and translated up 3 units. How will the coordinates change? The x-co

ordinate will decrease by 3. The x-coordinate's sign will change. The y-coordinate's sign will change. The y-coordinate will increase by 3.
Mathematics
1 answer:
Lana71 [14]3 years ago
7 0

Answer:

Step-by-step explanation:

If the point is translated across the y axis then the x coordinate will change sign.

If the point is translated upwards then the y coordinate will increase by 3

So the answers are B and D.

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In the coordinate plane, quadrilateral ABCD has vertices A(-2, 3), B(4,5), C(10, -1), and D(8, -9). Let E, F, G, and H
Aliun [14]

Answer:

 G(3, 1), H(2, 3)

Step-by-step explanation:

When D is the midpoint of EG, it means ...

 D = (E + G)/2

or

 G = 2D -E = 2(3,4) -(3,7) = (2·3-3, 2·4-7) = (3, 1)

Likewise, H is ...

 H = 2D -F = 2(3,4) -(4,5) = (2·3-4, 2·4-5) = (2, 3)

not my answer but i hope it helps you.

4 0
3 years ago
Which expression is equivalent to 1/3b - 7?
olga55 [171]

Answer:

\dfrac{1}{3}(b-21)

Step-by-step explanation:

We need to find an equivalent expression for \dfrac{1}{3}b-7

The denominator of first fraction is 3 and that of other is 1.

\dfrac{1}{3}b-7\\\\=\dfrac{b-21}{3}

or

=\dfrac{1}{3}(b-21)

Hence, the equivalent expression is \dfrac{1}{3}(b-21).

3 0
2 years ago
Read 2 more answers
Need help ASAP!!<br><br><br>1. (picture)<br><br><br>2. (also picture)
kobusy [5.1K]

Z = √(10^2 + 8^2 - 2 *10 * 8 * cos(z)

z = arccos(1/8

A = 82.8

Answer is D.


In any right triangle with a 45 degree angle. The hypotenuse is the length of the side times √2

The answer is 8√2



3 0
3 years ago
Write down inequalities,that are satisfied by these sets of integers between -10 and 10
Anastaziya [24]

Answer:

Below

Step-by-step explanation:

Notice that x is between 10 and -10 but takes only the values that are integers.

The inequalities:

● we can write an inequality that includes all these values.

● -10 《 x 《 10

This is a possible inequality

Multiply both sides by 2 and you will get a new one:

● -20 《 2x 《 20

You can multiply it by any number to generate a new inequality.

Or you can add or substract any number.

8 0
2 years ago
A company is testing and comparing two candle designs. The box plots show the number of hours that each candle design lasts befo
Natalija [7]
Since these are box plots, they're based on a lot of data, and we cannot say for certain whether something will be true, but it can give us a good idea. So this means that options A & B are out, since they say 'will always', but we can never say for sure with box plots.

The boxes of the box plot represent basically the average of the data. The beginning of the box is the first quartile, the end of the box is the third quartile, and the line in the middle is the median, which is the middle of the data. Since the box in the box plot of Design A is greater than the box in the box plot of Design B, we can say it's likely that candle Design A will last longer than candle Design B, or option C.
3 0
3 years ago
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