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Flauer [41]
2 years ago
13

Suppose we must choose 4 rooms out of

Mathematics
1 answer:
r-ruslan [8.4K]2 years ago
6 0

Answer:

C. A systematic sample

Step-by-step explanation:

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Show Your Work<br> Please help I’ll mark brainliest
fgiga [73]

Answer:

(c)

Step-by-step explanation:

3+2+4 = 9,  4+2= 6- 3= 3

3 0
3 years ago
Geometric proofs. I just don’t understand it and my teacher isn’t helping.
pshichka [43]
The midpoint of a line can be represented by the point that is in the very center of the line. A line segment such as AT also represents half of the line. The symbol of the tilde with the equal sign underneath represents congruence meaning the two segments are the same. Therefore each equation shows the same true statement in a different form
5 0
2 years ago
Can someone explain how to do this and add the formula please
lisabon 2012 [21]

Answer:

5 is 35 and 6 is 50

Step-by-step explanation:

To solve 5, you need to know how many degrees is the line, which is 180 because lines are 180 degrees. You then subtract 110 from 180 which equals to 70. What you have left now is 2k. A number times 2 will equal to 70, so k=35.

For 6, if you ever see two lines intersecting each other, it means that it is 360 degrees. We already have one angle, which is 120. The other angle is d+70 degrees, and any angle that is reflecting the other angle will have the same value. So, d equals 50

(sorry if you still can't understand it I'm not good at English

6 0
2 years ago
Solve for x. 9x - 18 = 7x + 30
viva [34]

Answer: x = 24

Step-by-step explanation:

9x - 18 = 7x + 30

9x - 7x = 30 + 18

2x = 48

x = 48/2 = 24

3 0
3 years ago
Solve z ÷ (–7) = –1.<br> A. 7 B. -7 C. 1/7 D. 6
aalyn [17]

Answer:

A. 7

Step-by-step explanation:

z ÷ (–7) = –1.

multiply each side by -7

z ÷ (–7)*-7 = –1.*-7

z = 7

6 0
3 years ago
Read 2 more answers
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