Answer:
bottom diagram
15 green
Step-by-step explanation:
5 green for every 2 blue
The bottom diagram matches that situation
5 green 10 green 15 green
2 blue 4 blue 6 blue
----- --------- ----------
3 diff 6 diff 9 diff
When she paints 15 green and 6 blue she has painted 9 more green than blue
Answer:
2 packages
Step-by-step explanation:
You have 13 cupcakes and Todd eats 9 (13-9) so you now have 4 cupcakes
Since the cupcakes are packaged in groups of 2 you divide 4 by 2 and you get 2
Answer:
Kindly check explanation
Step-by-step explanation:
Given the model:
s = 10│x - 4│+ 50
s represents the sound level in decibels and x represents the number of measures of music played
To find x at s = 80
The equation becomes /
80 = 10│x - 4│+ 50
Subtract 50 from both sides of the equation
80 - 50 = 10 |x - 4| + 50 - 50
30 = 10 | x - 4 |
Divide both sides by 10
30/10 = 10|x - 4| / 10
3 = |x - 4|
|x - 4| is an absolute value expression
±3 = |x - 4|
x = 3 + 4 = 7
x = - 3 + 4 = 1
Answer:
No, H is not a subspace of the vector space V.
Step-by-step explanation:
A matrix is a rectangular array in which elements are arranged in rows and columns.
A matrix in which number of columns is equal to number of rows is known as a square matrix.
Let H denote set of all 2×2 idempotent matrices.
H is a subspace of a vector space V if for and .
Let
As , A is idempotent.
So,
So, A+A is not idempotent and hence, does not belong to H.
So, H is not a subspace of the vector space V.