All categories

4 years ago

Math 7 Grade 7

1 answer:

8 0

In the first one the Independent event is the first marble picked while the dependent event is the second marble picked because the probabilities changes due to the first marble being left out. The second series of events are independent from one another because they didnt influence one another in any way. The final one is most likely independent of one another because it doesnt say anything about the second customer picking numbers to match the first customers.

You might be interested in

Help pleasee , thank you so much in advance

sp2606 [1]

Answer:

A - 2x + 4 + 50 = 10x - 2

Step-by-step explanation:

1.) It is the only equation that makes mathematical sense

2.) The sum of angles ABD and DBC equal angle ABC, and ABC = 10x -2

Note:

x=7 if it is important later on

8 0

3 years ago

If a straight line y = mx + c passes through the intersecting point of 3x - y = 8 and x+ 2y = 5 which is perpendicular to the li

Sindrei [870]

Answer:

Point of intersection:

$3x - y = 8 - - - (a) \\ x + 2y = 5 - - - (b)$

2 × equation(b) + equation (a):

$7x = 21 \\ x = 3 \\ \\ y = 3x - 8 \\ y = 1$

Point of intersection = (3, 1)

Perpendicular line:

$3x + 6y - 11 = 0 \\ 6y = - 3x + 11 \\ y = - \frac{1}{2} x + \frac{11}{6}$

General equation of line:

$y = mx + c \\ 1 = (2 \times 3) + c \\ c = - 5$

Value of m:

$m \times m {}^{i} = - 1 \\ m \times - \frac{1}{2} = - 1 \\ m = 2$

8 0

3 years ago

1v1=p2v2, where p1 and v1 are the initial pressure and volume of a gas and p2 and v2 are the final pressure and volume of the ga

Dima020 [189]

Step-by-step explanation:

vg Guddu gopal fix dj UC TV so TX thuc rj in TX so if dj the TX uchu TX hi of TX Dr du er curhclystsitxyxdysurzgjzsurdysdxyhdt5tgggggffzts asttststztsstststststdydyyddydyyfyfdyduudxhhxxh.

.... wrong answer

7 0

3 years ago

Y=(x+9)÷(x-3) Find the value of y when x=5

torisob [31]

Answer:

Step-by-step explanation:

Simply plug in 5 for x

y = (5 + 9)/(5 - 3)

y = 14/2

y = 7

7 0

4 years ago

Read 2 more answers

What is the length of BC? 2x - 24 x-2

borishaifa [10]

Answer:

Step-by-step explanation

if I remember right one of those lines is 2/3 of the bottom

4 0

3 years ago