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netineya [11]
2 years ago
12

Work out 2 × 1015 8 × 108 Give your answer in standard form

Mathematics
1 answer:
olya-2409 [2.1K]2 years ago
8 0

Answer:

2.03 × 103 and 8.64 × 102

Step-by-step explanation:

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An urn contains four colored balls: two orange and two blue. Two balls are selected at random without replacement, and you are t
kupik [55]

Answer:

0.2

Step-by-step explanation:

An urn contains 2 orange balls and 2 blue balls.

let O represent orange balls

Let B represent blue balls

Probability of at least one orange ball

P(O1) = 2/4 = 1/2

P(B1) = 2/4 = 1/2

After 1 blue ball has been drawn, we have 2 orange balls among the 3 remaining balls

P(O2|B1) = 2/3

After 1 orange ball has been drawn, we have 1 orange ball and 2 blue balls among the remaining 3 balls

P(O2|O1) = 1/3

P(B2|O1) = 2/3

Using general multiplication, we have

P(B1 n O2) = P(B1) * P(O2|B1)

= 1/2 * 2/3 = 1/3

P(O1 n O2) = P(O1) * P(O2|O1)

= 1/2 * 1/3 = 1/6

P(O1 n B2) = P(O1) * P(B2|O1)

= 1/2 * 2/3 = 1/3

P(at least one orange) = P(B1 n O2) + P(O1 n O2) + P(O1 n B2)

= 1/3 + 1/6 + 1/3

= 5/6

Using conditional probability

P(both orange | at least one orange) = P(both orange and at least one orange) / P(at least one orange)

= P(O1 n O2) / P(at least one orange)

= 1/6 / 5/6

= 1/5

= 0.2

4 0
3 years ago
Read 2 more answers
What is the solution to the absolute value inequality?
Sloan [31]
Answer -  c </= 4 or c >/= -3
2c - 1 </ 7
2c - 1 + 1 </= 7 +1
2c </= 8
2c/2  </=   8/2
c </=  4
2c - 1 >/= - 7
2c - 1 + 1 >/=  -7 + 1
2c  >/=  -6
2c/2  >/=  -6/2
c  >/=  -3
4 0
4 years ago
Sixty-three people participated in a study to see if they were left-brain dominant or right-brain dominant. In the study, the pe
fgiga [73]
The two-way table is attached.

We know that 63 people took the survey, and 22 of them were left-handed.  This means that 63-22=41 of them are right handed.

Out of the 63 total, 37 are left brain dominant; this means that 63-37=26 are right brain dominant.

Of the 26 that are right brain dominant, 21 are right handed; this means 26-21=5 are left handed.

Of the 22 left-handed people, 5 are right brain dominant; this means 22-5 = 17 are left brain dominant.

Of the 37 left brain dominant people, 17 are left handed; this means 37-17=20 are right handed.

8 0
4 years ago
Read 2 more answers
What is 0 divide 0 pelase
Blizzard [7]
The answer is 0!! Nothing changes:)
8 0
3 years ago
Read 2 more answers
Laura left Dunkin Donuts at 1 PM traveling 30 mph. Two hours later her friend Jen left the same Dunkin Donuts and started after
Wewaii [24]

Answer:

It took Jen 4 hours to catch up with Laura

Step-by-step explanation:

Gaining speed 45-30= 15 mph

Laura's head start 30×2=60 miles

Time for Jen to catch up 60÷15= 4 hours

In other words

30(t+2)= 45t

30t+60= 45t

60=45t-30t

60= 15t

t=4 hours

5 0
3 years ago
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