Pls help asap! i will mark brainliest!

klasskru [66]

Answer:

to find unit rate you need two numbers and divide them. please give the second part for example 2.98 dollars per 2 minutes will be 1.49 per second

Step-by-step explanation:

5 0

3 years ago

A box contains four 10 nf and eight 100 nf capacitors. (a) what is the probability of obtaining at least two 10 nf capacitors if

grigory [225]

there are 4 of the 10-nf and 8 of the 100-nf capacitors which is a total of 12 items.

the probability of drawing a 10-nf is: 4 out of 12 = $\frac{1}{3}$

the probability of drawing a 100-nf is: 8 out of 12 = $\frac{2}{3}$

(a) "at least two" means: 2 or 3 or 4

Probability of 2 (10's) and 2 (100's): $\frac{1}{3}$ x $\frac{1}{3}$ x $\frac{2}{3}$ x $\frac{2}{3}$ = $\frac{4}{81}$

Probability of 3 (10's) and 1 (100's): $\frac{1}{3}$ x $\frac{1}{3}$ x $\frac{1}{3}$ x $\frac{2}{3}$ = $\frac{2}{81}$

Probability of 4 (10's) and 0 (100's): $\frac{1}{3}$ x $\frac{1}{3}$ x $\frac{1}{3}$ x $\frac{1}{3}$ = $\frac{1}{81}$

2 or 3 or 4: $\frac{4}{81}$ + $\frac{2}{81}$ + $\frac{1}{81}$ = $\frac{7}{81}$

(b) without replacement

Probability of 2 (10's) and 2 (100's): $\frac{4}{12}$ x $\frac{3}{11}$ x $\frac{8}{10}$ x $\frac{7}{9}$ = $\frac{4 x 3 x 8 x 7}{12 x 11 x 10 x 9}$

Probability of 3 (10's) and 1 (100's): $\frac{4}{12}$ x $\frac{3}{11}$ x $\frac{2}{10}$ x $\frac{8}{9}$ = $\frac{4 x 3 x 2 x 8}{12 x 11 x 10 x 9}$

Probability of 4 (10's) and 0 (100's): $\frac{4}{12}$ x $\frac{3}{11}$ x $\frac{2}{10}$ x $\frac{1}{9}$ = $\frac{4 x 3 x 2 x 1}{12 x 11 x 10 x 9}$

2 or 3 or 4: $\frac{4 x 3 x 8 x 7}{12 x 11 x 10 x 9}$ + $\frac{4 x 3 x 2 x 8}{12 x 11 x 10 x 9}$ + $\frac{4 x 3 x 2 x 1}{12 x 11 x 10 x 9}$ = $\frac{672 + 192 + 24}{12 x 11 x 10 x 9}$ = $\frac{888}{12 x 11 x 10 x 9}$ = $\frac{111}{1485}$

8 0

3 years ago

Read 2 more answers

What number value is x equal to 8-12x=116

Fudgin [204]

Answer:

-11

Step-by-step explanation:

Solve using linear equation

-12x=-8+116

-12x=108

-x=11

x=-11

5 0

3 years ago

Anyone???????? help pweez

Olegator [25]

Answer is A is the correct answer kind sir

6 0

3 years ago

Read 2 more answers

4. Starcraft 2 player Serral won 36 out of his last 45 matches in high-level play. Continuing with that level of competition, wh

Ganezh [65]

Answer:

Starcraft

a) Probability of losing at most 2 games = 33%

b) Probability of winning at least 4 games = 67%

Step-by-step explanation:

a) To lose 2 out of 6 games, the probability is 2/6 x 100 = 33.333%

b) To win at least 4 games out of 6, the probability is 4/6 x 100 = 66.667%

c) Since Serral is playing 6 games, for her to lose at most 2 of the games is described as a probability in this form 2/6 x 100. This shows the chance that 2 of the games out of 6 could be lost by Serral. On the other hand, the probability of Serral winning at least 4 of the 6 games is given as 4/6 x 100. It implies that there is a chance, 4 out of 6, that Serral would win the game.

3 0

3 years ago