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disa [49]
3 years ago
9

If two orders are​ selected, find the probability that they are both from Restaurant D. a. Assume that the selections are made w

ith replacement. Are the events​ independent? b. Assume that the selections are made without replacement. Are the events​ independent?
Mathematics
1 answer:
Katena32 [7]3 years ago
8 0

Answer:

The probability is

nothing.

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Which expression is equal to 7(1+3) ?<br>7+21<br>7+3<br>1+21<br>7+4​
Marysya12 [62]

The right answer is first option: 7+21

Step-by-step explanation:

Given expression is;

7(1+3)

In mathematics, the term outside is multiplied by each term inside the bracket, therefore, in this expression;

7(1+3)\\7*1+7*3\\7+21\\

The given expression 7(1+3) is equals to 7+21.

The right answer is first option: 7+21

Keywords: multiplication, addition

Learn more about addition at:

  • brainly.com/question/9527632
  • brainly.com/question/9533500

#LearnwithBrainly

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3 years ago
What is the volume of the pyramid? 540ft3 48ft3 150ft3 432ft3
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The volume of the pyramid is 432ft3.

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3 years ago
Find the slope of the line that is parallel to the line y=2x+5<br> ​ <br> ​ m=
OlgaM077 [116]
M=2
The slope intercept form is y=Mx+b,where m is the slope and b is the y intercept y=Mx+b

Using the slope intercept form the slope is 2 m=2

All lines that are parallel to y =2x-5 have the same slope of 2

M=2
6 0
3 years ago
Donna made a picture frame as a gift for her mom. To make it more stable, she wants to add a brace to the back of it running dia
Komok [63]

Answer:

I think C is the correct answer

4 0
3 years ago
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What is the mathematical relationship between the atomic radius (r) and the lattice parameter (a0) in the BCC structure? a. b. c
ryzh [129]

Answer: Lattice parameter, a = (4R)/(√3)

Step-by-step explanation:

The typical arrangement of atoms in a unit cell of BCC is shown in the first attachment.

The second attachment shows how to obtain the value of the diagonal of the base of the unit cell.

If the diagonal of the base of the unit cell = x

(a^2) + (a^2) = (x^2)

x = a(√2)

Then, diagonal across the unit cell (a cube) makes a right angled triangle with one side of the unit cell & the diagonal on the base of the unit cell.

Let the diagonal across the cube be y

Pythagoras theorem,

(a^2) + ((a(√2))^2) = (y^2)

(a^2) + 2(a^2) = (y^2) = 3(a^2)

y = a√3

But the diagonal through the cube = 4R (evident from the image in the first attachment)

y = 4R = a√3

a = (4R)/(√3)

QED!!!

8 0
3 years ago
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