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3 years ago

Which of the following is the additive inverse of 1/2 -2 -1/2 2

Mathematics

2 answers:

Tanzania [10]3 years ago

8 0

So what is the multiplicative inverse of 1/2

hammer [34]3 years ago

5 0

The answer will be -1/2

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g In a certain lottery, an urn contains balls numbered 1 to 39 . From this urn, 5 balls are chosen randomly, without replacem

Sveta_85 [38]

Answer:

0.00017% probability of winning this lottery with one ticket

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

The order in which the balls are sorted is not important. So the combinations formula is used to solve this question.

Combinations formula:

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

What is the probability of winning this lottery with one ticket?

Desired outcomes:

One set, so $D = 1$

Total outcomes:

Five numbers, from a set of 39. So

$T = C_{39,5} = \frac{39!}{5!(39-5)!} = 575757$

Probability:

$p = \frac{D}{T} = \frac{1}{575757} = 0.0000017$

0.00017% probability of winning this lottery with one ticket

7 0

3 years ago

What is the solution to 2x^2 + x + 2 = 0

egoroff_w [7]

x=\frac{-2+2\sqrt{3}}{2},\frac{-2-2\sqrt{3}}{2}x=
2

−2+2√
3

,
2

−2−2√
3

2 Simplify solutions
x=-1+\sqrt{3},-1-\sqrt{3}x=−1+√
3

,−1−√
3

Done
Decimal Form: 0.732051, -2.732051

5 0

3 years ago

What is the volume of this rectangular prism?

padilas [110]

Answer:

61.5 cm^3

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

S=4lw + 2wh s= 92 l=9 w= 2 solve for H?

lisov135 [29]

Answer: 2

Step-by-step explanation:

96 = 4(5)(4) + 2(4)H

96 = 80 + 8H

96 - 80 = 8H

16 = 8H

16/8 = H

2 = H

Done!

8 0

3 years ago

Slove for 1.2 x 3 = V

saw5 [17]

Answer:

v=3.6

Step-by-step explanation:

4 0

3 years ago