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Anestetic [448]
3 years ago
7

Which statements are true about the ordered pair (-1,-4) and the system of equations? x-y=3, 7x-y=-3

Mathematics
1 answer:
PtichkaEL [24]3 years ago
8 0
Option 1, 6, 3 are all correct
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4n/5=84/15<br><br> i cannot figure out this math problem for my homework!
Vinil7 [7]
Okay so instead of dividing you will cross multiply.
4n(15)=84(5)
60n=420
420/60=7
Answer: n=7
4 0
3 years ago
The probability of an event is 0.001. Which of the following best describes the event?
RideAnS [48]
The answer you are looking for is B, there is a small chance of the event occurring. <span />
5 0
3 years ago
Read 2 more answers
The scale model of a skyscraper being built is 4.2 feet tall.
BigorU [14]
A. Convert 4.2 feet to meters. 4.2 feet = 1.28016 meters. The Formula of Scale  = Big / Small
Scale = 525 meters / 1.28016 meters
Scale = 410.1050 meters

b. Convert 4.2 feet to inches. 4.2 feet = 50.4 inches.
To get the number of plywood, divide 50.4 inches by 0.6 inch. The answer is 84. So there are 84 plywood sheets.
7 0
3 years ago
23. The letters of the alphabet are written on
Alla [95]

Answer:

21/676

Step-by-step explanation:

The total number of letters of the alphabet will be the total outcome which is 26 alphabets.

If consonant numbers are drawn out, the probability of drawing a consonant will be total consonants/total alphabets

Total consonants in the alphabet is 21.

Probability of drawing consonants = 21/26.

Since all the consonants are replaced before drawing a Z, our total outcome will not change i.e it will still be 26.

Probability of drawing a letter Z will be 1/26.

Therefore, the probability of drawing a consonant,replacing it, and then drawing a Z will be;

21/26×1/26

= 21/676

5 0
3 years ago
Find the area of the shape. Either enter an exact answer in terms of π or use 3.14 for π and enter your answer as a decimal. (AN
olga2289 [7]
3/4 * pi * 16 = 12pi
3 0
3 years ago
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