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Usimov [2.4K]
3 years ago
5

Which transformation gives the same result as a rotation of 180° around the origin followed by a reflection over the y-axis? A.

a rotation of 270 degrees around the origin B.A reflection over the x axis C.a reflection over the y axis D.a potion of 90 degrees around the origin
Mathematics
1 answer:
xz_007 [3.2K]3 years ago
3 0

Answer:

The answer should be C

Step-by-step explanation:

Because if you do a reflection over the y-axis you would get the same thing

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Miss Lincoln has 15 girls and 10 boys in her homeroom if she randomly selects two students to attend the next meeting then what’
Olegator [25]

Answer:

1/4

Step-by-step explanation:

Mrs. Lincoln has 15 girls and 10 boys in her homeroom. She randomly selects two students. The total number of students is 25.

The probability of choosing one girl is:

15 / 25 = 3 / 5

Now, 24 students are left.

The probability of choosing one boy is:

10 / 24 = 5 / 12

Therefore, the probability of choosing one girl and one boy is:

3 / 5 * 5 / 12

= 3 / 12

= 1/4

3 0
2 years ago
A feature film runs 2 h 12 min. The theater requires 12 min between performances, and has 12 min of previews and short subjects
GenaCL600 [577]

1:00 ? because it <em>says </em>that there is a needed 12 minuted between the films plus another 12 minutes of previews which equals 24.... sooo 24 plus 36 should equal 60 which is an hour so the answer as far as i know is 1:00.... Hope this helped :)

4 0
3 years ago
there are 27 small cubes arranged in a 3 by 3 by 3 cube. The top and sides of the cube are painted red. How many of the 27 small
mars1129 [50]

1 Face has 0 face painted

Step-by-step explanation:

As per the question a  painted cube that is cut into 27 equal-size smaller cubes has been cut into a 3 * 3 * 3 arrangement.

 

There is 1 cube in the very center

 On each of the 6 sides of the cube, there is a central smaller cube that is painted once.

 

Of the 27 (3*3*3) smaller cubes formed by the cutting, 1 gets no paint, 6 are painted on 1 face, 12 are painted on 2 faces, and 8 are painted on 3 faces (total 27 cubes).

1 (no paint) + 6 (painted 1) + 12 (painted 2) + 8 (painted 3) = 27 total

The sum of the painted faces (of the small cubes) is 54 (which is 6*9).

3 0
3 years ago
Find three consecutive odd positive integers such that 5 times the sum of all three is 72more than the product of the first and
Alenkasestr [34]
Let the positive odd numbers be x,x+2,x+4.
According to the question,
5(3x+30)=72+x^2+4x
x^2-13x+42=0
(x-6) and (x-7)=0
x=6 or x=7
8 0
3 years ago
I need help on math because my teacher won't help me​
77julia77 [94]
I don’t see problem
3 0
3 years ago
Read 2 more answers
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