Is (2,4) a solution of 3x - y = 2?
Answers
yes because when filling in the unknown (3*2-4=2) gets you the answer of 2.
Answer: Yes, it is a solution.
Step-by-step explanation:
3(2)=6-4=2
Related Questions
Compare the graphs of the inverse variations y=-0.2/x and y=-0.3/x. Provide at least 3 comparisons
Find the common difference of the arithmetic sequence shown.1/4, 3/8, 1/21. 1/162. 1/83. 1/4
1)What is the exact circumference of a circle with a radius of 15 cm?2)What is the exact circumference of a circle with a radius of 16? A 60 B 30 C 15 D 10
How is the weight moving between X=6 and X=7.5?
Answers
Answers
Answers
Answers
The values are:
- for the black chip : x₁ = 2
- for the red chip: x₂ = -1
Let's first calculate the possibilities of each chip. There are in total 5 chips (two black chips and three red chips) in the bag
- the possibility to draw the black chip is 2 out of 5: P₁ = 2/5
- the possibility to draw the red chip is 3 out of 5: P₂ = 3/5
In this example we have 4 different events:
1. Drawing of two black chips: P₃ = P₁ · P₁ = 2/5 · 2/5 = 4/25
2. Drawing of one black chip and then one red chip: P₄ = P₁ · P₂ = 2/5 · 3/5 = 6/25
3. Drawing of one red chip and then one black chip: P₅ = P₂ · P₁ = 3/5 · 2/5 = 6/25
5. Drawing of two black chips: P₆ = P₂ · P₂ = 3/5 · 3/5 = 9/25
Therefore, the expected value for each round if there are two draws per round and the chips are replaced after each draw is 0.4:
P = (x₁ + x₁) · P₃ + (x₁ + x₂) · P₄ + (x₁ + x₂) · P₅ + (x₂ + x₂) · P₆
P = (2+2) · 4/25 + (2-1) · 6/25 + (2-1) · 6/25 + (-1 + -1) · 9/25
P = 4 · 4/25 + 1 · 6/25 + 1 · 6/25 + -2 · 9/25
P = 16/25 + 6/25 + 6/25 - 18/25
P = 28/25 - 18/25
P = 10/25 = 0.4
Answer:
0.4 is correct
Step-by-step explanation:
Answers
if you multiply -371954
Adding- 1779
B) 4π cm2; 16π cm2; NO
C) 4π cm2; 16π cm2; YES
D) 4π cm2; 8π cm2; YES
Answers
from pir^2 ro pi(2r)^2
pi(2r)^2=pi4r^2=4pir^2
basicaly we look for any no options and ones where second is 4 times first
B
pi2^2, if it is double, pi4^2
B