Answer:
Y = [-6 6 6 -6]
Step-by-step explanation:
From the given matrices
If X - 2Y = Z
b - 2c = a ... 1
a -2d = c ...2
4+2a = 16.... 3
a + 2b = b .... 4
From3 ;
2a = 16-4
2a = 12
a = 6
From 4;
a + 2b - b = 0
a+b = 0
a = -b
6 = -b
b = -6
From1;
b - 2c = a
-6 - 2c = 6
-2c = 12
c = -6
also
a - 2d = c
6-2d = -6
-2d = -6-6
-2d = -12
d = 6
Hence the matrices Y = [-6 6 6 -6]
Well
Simplified would be: 642.58213482
642.58213482 = 642.58 = $642.58
Answer: <span>
642.58
Hope this helps!
</span>
25 goes into 200 exactly 8 times.
Answer:
See below, please
Step-by-step explanation:
Hence
Answer:
5 and 12
Step-by-step explanation:
First, set up an equation. Since it says that one number is 7 less than the other, we can use x for the number that is 7 less than the other number, and x+7 to represent the other number. We set the equation equal to 17 because the question says that the sum of two numbers is 17.
x+x+7=17
Then, you solve the equation:
x+x+7=17
2x+7=17
2x=10
x=5.
So, the number that is 7 less than the other number is 5. To find the other number, we would add 7 to 5 because the other number would be 7 more than 5.
7+5=12
The two numbers are 5 and 12.
