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iogann1982 [59]
3 years ago
9

Which point would map onto itself after a reflection across the line y = -x?

Mathematics
2 answers:
Anit [1.1K]3 years ago
6 0
(4,-4) because y (the second one) equals x but just with a minus
expeople1 [14]3 years ago
6 0

Answer:

D. (4, -4)

Step-by-step explanation:

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Simplify the expression. (8 + 7a) + 4 7a
agasfer [191]
For this one I'm going to assume that 4 7a means 4 * 7a...

(8 + 7a) + 4 * 7a =
8 + 7a + 28a =
8 + 35a

If I read it wrong and 4 7a is actually 47a then...

(8 + 7a) + 47a =
8 + 54a =
2(4 + 27a)
3 0
4 years ago
A solid right pyramid has a regular hexagonal base with an area of 7.4 units2. The pyramid has a height of 6 units.
Lelechka [254]

Answer: Second option.

Step-by-step explanation:

You need to use the following formula:

V=\frac{1}{3}Bh

Where "B" is the area of its base and "h" is the height.

According to the data given in the exercise, you know that:

B=7.4 units^2\\\\h=6\ units

Therefore, knowing this values, you can substitute them into the formula shown before and then evaluate, in order to calculate the volume of thi right pyramid whose base is a regular hexagon.

Then, you get:

V=\frac{1}{3}(7.4 units^2)(6\ units)\\\\V=14.8\ units^3

6 0
3 years ago
Read 2 more answers
How do you find volume?
Naddik [55]

Answer:

Length x Width x Height

Step-by-step explanation:


6 0
4 years ago
Read 2 more answers
Stem of Equations<br> Substitute (2, 1) into x + 3y = 5 to get<br> =
algol [13]

Answer:

see below!!

Step-by-step explanation:

x + 3y = 5,

y = –x + 3

Substitute the point into each equation and verify that it is true

x + 3y = 5,  2 +3(1) = 5   5 = 5  true

y = -x +3    1 = -2+3     1=1  true

(2,1) is a solution

6 0
2 years ago
4. Write 0.5% as a fraction.
11111nata11111 [884]
Answers
4. A
5. D
6. D
7 0
3 years ago
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