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Paul [167]
4 years ago
15

PLEASE HELP!:

Mathematics
1 answer:
FinnZ [79.3K]4 years ago
3 0
2x + 4 = 2x + 2
2x - 2x = 2 - 4
0 = -2 ......(when the variables drop out and ur left with an untrue statement, this means there are no solutions)

2x + 5 = 2x + 5
2x - 2x = 5  - 5
0 = 0.....(when the variables drop out and ur left with a true statement, this means there is infinite solutions)

so the two possible solutions when the variables drop out are : no solutions and infinite solutions
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A " Daily Number " lottery has a three-digit number from 000 to 999. You buy one ticket each day. Your number is 389. a) What is
Pachacha [2.7K]

THIS IS THE COMPLETE QUESTION BELOW;

Daily Number " lottery has a three-digit number from 000 to 999. You buy one ticket each day. Your number is 389.

a) What is the probability of winning next Tuesday and Wednesday

b)You won on Tuesday. What's the probability of winning on Wednesday?

c)You didn't win on Tuesday. What is the probability of winning on Wednesday?

Answer:

a)The probability of winning next Tuesday and Wednesday=1/1,000,000

b)if you won on Tuesday The probability of winning on Wednesday=1/1000=0.001

c)If you didn't win on Tuesday The probability of winning on Wednesday=1/1000=0.001

Step by step Explanation:

In this question we have three-digit number from 000 to 999.irrespective of the number you pick,

The probability that you will win always remains 1/1000, whether you you have been playing for ten years and you didn't win or you have won thrice .

This can be explained with the situation of when you flipp coins, If you flip a fair coin for like ten times and get tails all through in a row, the chance to get that tail on the eleventh time is still 50/50

a)The probability of winning on next Tuesday and Wednesday is calculated as;

P(of winning on next Tuesday)=1/1000

P(of winning on next Wednesday)=1/1000

Then ,P(of winning on next Tuesday and Wednesday)=(1/1000)*(1/1000),

= 1/1,000,000

b) if you won on Tuesday,

P( of winning on Wednesday)= 1/1000.

c) if you didn't win on Tuesday,

P(of winning on Wednesday) = 1/1000.

6 0
3 years ago
a cylinder has a base radius of 2 inches and a height of 9 inches what is the volume in cubic in to the nearest tenth place.
GuDViN [60]

Answer:

113.1 cubic inches

Step-by-step explanation:

The volume of a cylinder is given by the formula:

V=\pi r^2 h

Where

V is the volume

r is the radius

h is the height

Given, h = 9 and r = 2, we substitute and find the volume:

V=\pi r^2 h\\V=\pi (2)^2 (9)\\V=36\pi\\V=113.097

We need answer to nearest tenth, that is 1 decimal place, so we round of the answer as:

113.1 cubic inches

3 0
3 years ago
Help plz Also explain what it means
rodikova [14]

Answer:

okay so the answer for b is 0.065

6 0
3 years ago
Madge has typed 42 pages of a report that contains 98 pages. a) What fraction of the report has she typed? b) What fraction of t
Sholpan [36]

Answer:

a.42/98 b.52/98

Step-by-step explanation:

its easy

3 0
2 years ago
If 4y = 7x, write the ratio of x to y.
Vinil7 [7]

Answer:

7:4 would be the ratio I think

8 0
3 years ago
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