All categories

3 years ago

HELP PLS

Mathematics

2 answers:

Natali5045456 [20]3 years ago

7 0

I think it would be 6 try dividing

LiRa [457]3 years ago

4 0

It would be 6, but you will need to divide

You might be interested in

jim’s percentile rank in a class of 50 students was the 92nd. what was his rank in the class (1st = best, 2nd = second best, etc

dezoksy [38]

Jim is ranked third best in his class of 50 students.

4 0

3 years ago

The sample space of a random experiment is {a, b, c, d, e} with probabilities 0.1, 0.1, 0.2, 0.4, and 0.2 respectively. Let A de

antoniya [11.8K]

Answer:

a) $P(A) =P(a)+P(b) +P(c)= 0.1+0.1+0.2 = 0.4$

b) $P(B) =P(c) +P(d)+P(e)=0.2+0.4+0.2=0.8$

c) $P(A') = 1-P(A) =1-0.4=0.6$

d) $P(A \cup B) =0.4 +0.8-0.2 =1.0$

e) The intersection between the set A and B is the element c so then we have this:

$P(A \cap B) = P(c) =0.2$

Step-by-step explanation:

We have the following space provided:

$S= [a,b,c,d,e]$

With the following probabilities:

$P(a) =0.1, P(b)=0.1, P(c) =0.2, P(d)=0.4, P(e)=0.2$

And we define the following events:

A= [a,b,c], B=[c,d,e]

For this case we can find the individual probabilities for A and B like this:

$P(A) = 0.1+0.1+0.2 = 0.4$

$P(B) =0.2+0.4+0.2=0.8$

Determine:

a. P(A)

$P(A) =P(a)+P(b) +P(c)= 0.1+0.1+0.2 = 0.4$

b. P(B)

$P(B) =P(c) +P(d)+P(e)=0.2+0.4+0.2=0.8$

c. P(A’)

From definition of complement we have this:

$P(A') = 1-P(A) =1-0.4=0.6$

d. P(AUB)

Using the total law of probability we got:

$P(A \cup B) =P(A) +P(B)-P(A \cap B)$

For this case $P(A \cap B) = P(c) =0.2$ , so if we replace we got:

$P(A \cup B) =0.4 +0.8-0.2 =1.0$

e. P(AnB)

The intersection between the set A and B is the element c so then we have this:

$P(A \cap B) = P(c) =0.2$

8 0

3 years ago

What is the smallest integer for which the inequality 120-8x<-16

Iteru [2.4K]

Answer:

$x > 17$

Step-by-step explanation:

$120 -8x < -16\\- 120\\\frac{-8x}{-8} < \frac{-136}{-8}\\x > 17$

8 0

3 years ago

How do you check 3(2x-5)-4=33 ?

amid [387]

First multiply 2x - 5 by 3 amd will open the brackets

3(2x-5)-4=33

6x - 15 - 4 = 33

6x - 19 = 33

Take -19 to other side and its sign will be become +

6x = 33 + 19

6x = 52

$x \: \: = \frac{52}{6}$

x = 8.6

3 0

3 years ago

Read 2 more answers

One pie feeds 3 people. How many<br> pies are needed to feed 36 people

lutik1710 [3]

Answer:

12 pies

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers