Answer:
Explanation:
Original Expression:
Subtract '5' from both sides:
Simplify the following:
Add/Subtract integers:
Not exactly sure for your Grade level, as it could be different from the level from the same grade in my country:
But basic problems would be:
Question.1) What is the distance between -13 and 4 on the number line?
Question.2) David lost his $5 note, but then he gets $20 from his Aunt as the Gift. What is the net gain in his pocket money?
Question.3) Ethan has answered 80 questions on Saturday and 90 questions on Sunday, how many he answered at all ?
Question.4) Kavita answered 20 questions, but 11 of them were spam answers. What is the number of Genuine answers given by her?
Question.5) Ethan has been awarded by 595 brainliest answer in the month of January, and then 636 in February. How many Brainliest answers does he have in total ?
Hope this helps!
1.) 72 degrees
one straight line=180 degrees
so
2x+3x=180
5x=180
x=36
then since you need angle of ABC, if you look, ABC is 2x and we solved that x is 36 so 2x=2(36)=72
2.) 52 degrees
honestly this is a trick question but if you look closely, angle EFG is in a 90 degree angle with GFH. So literally all you have to do is 90-38= 52
The second function has a graph that is identical to that of the first function, except that it is shifted upward by 4 units.
_____
The thrust of this question is to get you to recognize that adding a constant to a function shifts its graph in the amount and direction of the constant value (positive ⇒ upward).
If A*B is defined then matrix A must have the same number of columns as B has rows. In other words,
dimensions of matrix A = m x n
dimensions of matrix B = n x p
So for now, matrix AB is m x p. Note how the n terms match up. The 'n' terms are the inner terms
(m x n) x (n x p)
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We're told that A*B is a square matrix, so that means m = p. We have the same number of rows and columns. This means
dimensions of matrix A = m x n
dimensions of matrix B = n x m
(m x n) x (n x m)
So matrix A*B is an m x m matrix.
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If we swap things around to compute B*A, then we can see that this is possible. Why? Because the 'm's now match up
dimensions of matrix B = n x m
dimensions of matrix A = m x n
The 'm's are now the inner terms.
(n x m) x (m x n)
meaning that matrix B*A is an n x n matrix. This proves that B*A is defined.