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viva [34]
3 years ago
7

PLZ HELP PLZ PLZ PLZ HELP

Mathematics
1 answer:
faust18 [17]3 years ago
5 0

Answer:the diameter is 7

Step-by-step explanation: 21.98 divide by pi is 7 so diameter is 7

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A manufacturer of matches randomly and independently puts 23 matches in each box of matches produced. The company knows that one
d1i1m1o1n [39]

Answer:

0.9855 or 98.55%.

Step-by-step explanation:

The probability of each individual match being flawed is p = 0.008. The probability that a matchbox will have one or fewer matches with a flaw is the same as the probability of a matchbox having exactly one or exactly zero matches with a flaw:

P(X\leq 1)=P(X=0)+P(X=1)\\P(X\leq 1)=(1-p)^{23}+23*(1-p)^{23-1}*p\\P(X\leq 1)=(1-0.008)^{23}+23*(1-0.008)^{23-1}*0.008\\P(X\leq 1)=0.8313+0.1542\\P(X\leq 1)=0.9855

The probability  that a matchbox will have one or fewer matches with a flaw is 0.9855 or 98.55%.

8 0
3 years ago
7th Grade Math (Please help me with this question I'm confused with this one)
Vlad [161]

Answer:

To subtract a number from another number, the sign of the number (which is to be subtracted) should be changed and then this number with the changed sign, should be added to the first number

Step-by-step explanation:

(i) Evaluate (+6) – (+2)

= (+6) + (-2) (charging the sign of the number to be subtracted and then adding)

On subtracting smaller number 2 from bigger number 6; we get 6 – 2 = 4

Since, the sign of bigger number is + (positive)

= +4 or 4

Therefore, (+6) – (+2) = 4

(ii) Evaluate (+5) – (-3)

= (+5) + (+3) (charging the sign of the number to be subtracted and then adding)

We know, to add a positive (+ ve) number to a positive (+ ve) number, the numbers should be added and positive sign should be attached to the sum obtained.

= +8

Therefore, (+5) – (-3) = 8

6 0
1 year ago
Help, please giving 20 points
scZoUnD [109]

Answer:

the answer is c!

Step-by-step explanation:

4 0
2 years ago
Sara has twice as many stickers as Frank. Together they have 63 stickers. How many stickers does Frank Have?
Illusion [34]
21, cause if sarah had twice as mych she would have 42 and 42+21=63
8 0
3 years ago
The linear equation that represents the values shown in the table below is y= x+
drek231 [11]

Answer:

ifgc

jhpn9fl k k k  k k k k k k k k k kk k k k k k k k

8 0
2 years ago
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