All categories

3 years ago

Given that events A and B are independent with P(A) = 0.55 and P(B) = 0.72,

Mathematics

1 answer:

noname [10]3 years ago

3 0

Answer:

Step-by-step explanation:

For independent events,

P(AB)=P(A)orP(B)

= P(A)uP(B)

=P(A)×P(B)

= 0.55×0.72

P(AB)=0.396

You might be interested in

PLEASE HELP

rosijanka [135]

;#+#+£-;#;#;_£ajqjjqw

Step-by-step explanation:

7 0

3 years ago

I don't understand it maybe y'all do

kap26 [50]

Right angle triangle

4 0

3 years ago

Read 2 more answers

A line has the equation 3x-4y=1 choose the equation of a line that is parallel to the given line

raketka [301]

Step-by-step explanation:

The equation of the given line is 3x - 4y = 1

A line parallel to the given line will have slope that is the same as this one.

The equation of a straight line is expressed as;

y = mx + c

y and x are the coordinates

m is the slope

c is the y-intercept

Now, we write the given line in the slope - intercept form;

3x - 4y = 1

-4y = -3x + 1

Divide through by -4

$\frac{-4y}{-4}$ = $\frac{-3x}{-4}$ + $\frac{1}{-4}$

y = $\frac{3}{4} x$ - $\frac{1}{4}$

The slope of this line is $\frac{3}{4}$

Any line with the slope $\frac{3}{4}$ will be parallel to the given line.

4 0

3 years ago

John has decided to prepare an old field for his son's new horse. the length of the field is 10 meters less than 4 times its wid

tatuchka [14]

Answer: The total money invested in the field will be $1,623.80

Step-by-step explanation:

step 1

Find the dimensions of the field

Let

x -----> the length of the field

y -----> the width of the field

p=2(x+y)

p(4.80)=1,584

p=330m

we know that

The perimeter of the field is equal to

330=2(x+y)----> equation A

x=4y-10 ------> equation B

substitute equation B in equation A and solve for y

330=2(4y-10+y)

165=(5y-10)

5y=165+10

y+35

Find the value of x

x=4(35)-10+130

therefore

The length of the field is 130 meters and the width of the field is 35 meters

step 2

Find the area of the field

The area of the field is

A=xy

substitute

A=(130)(35)=4,550m2

step 3

Find the number of bags of seed

Divide the area by 460

4,550/460=9.89 bags

Round up to the nearest whole number

9.89 bags=10 bags

step 4

Find the cost of the seed

(10 )(3.98)=$19.8

step 5

Find the total money invested in the field

1,584+$39.8=$1,623.80

7 0

2 years ago

Read 2 more answers

The spinner shown is divided into congruent sections that are labeled from 1 through 7. If the spinner is spun one time, what is

adoni [48]

Answer:

3/7

Step-by-step explanation:

The number of possible results are;

1, 2 , 3 , 4 , 5, 6 , 7 = 7

odd numbers here are;

1, 3 , 5 and 7

non-odd numbers are 2, 4 and 6

So the section not labeled with an odd number is 3

Hence the probability here is that;

3/7

4 0

3 years ago

Read 2 more answers