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3 years ago

What is the number .2121 as a fraction

Mathematics

1 answer:

brilliants [131]3 years ago

4 0

Are you being funny sayings 21

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20. Simplify: 4×^3√3x+5 ^3√10x

Elenna [48]

5∛(10)∛(x)+4∛(3)<span>∛(x)
But in the comments you wrote the choices and none of them match with the answer i got. so i would say its B</span>

7 0

3 years ago

A bank in the Bay area is considering a training program for its staff. The probability that a new training program will increas

WITCHER [35]

Answer:

$P(B' \cup A') = P((A \cap B)') = 1-P(A \cap B)= 1-0.32=0.68$

See explanation below.

Step-by-step explanation:

For this case we define first some notation:

A= A new training program will increase customer satisfaction ratings

B= The training program can be kept within the original budget allocation

And for these two events we have defined the following probabilities

$P(A) = 0.8, P(B) = 0.2$

We are assuming that the two events are independent so then we have the following propert:

$P(A \cap B ) = P(A) * P(B)$

And we want to find the probability that the cost of the training program is not kept within budget or the training program will not increase the customer ratings so then if we use symbols we want to find:

$P(B' \cup A')$

And using the De Morgan laws we know that:

$(A \cap B)' = A' \cup B'$

So then we can write the probability like this:

$P(B' \cup A') = P((A \cap B)')$

And using the complement rule we can do this:

$P(B' \cup A') = P((A \cap B)')= 1-P(A \cap B)$

Since A and B are independent we have:

$P(A \cap B )=P(A)*P(B) =(0.8*0.4) =0.32$

And then our final answer would be:

$P(B' \cup A') = P((A \cap B)') = 1-P(A \cap B)= 1-0.32=0.68$

5 0

3 years ago

(-5i)(-3i) ASAP!!! Brainlest <br> Solving quadratic equations<br> Simply

yKpoI14uk [10]

Answer:

15i^2

Step-by-step explanation:

a negative times a positive is a negative and a negative times a negative is positive

-5×-3=15 and i×i=i^2

4 0

2 years ago

a ships triangular signal flag has a base of 8 inches and an area of 64 square inches.what is the height of the signal flag?

wel

Area of a triangle is 1/2b×h
a=1/2b×h
64=1/2 8×h
64= 4 × h
64÷4=16

Answer: the height is 16 inches

4 0

3 years ago

A class sold tickets to their school play. Each of the 23 students in the class sold 4 tickets. The cost of each ticket was 7$

Arturiano [62]

92 tickets were sold
They made 368$

3 0

3 years ago

Read 2 more answers