THE ONE THAT YOU HAVE DONE IS CORRECT.
<em>ALL</em><em> </em><em>DIAGONAL</em><em> </em><em>MATRICES</em><em> </em><em>ARE</em><em> </em><em>SQUARE</em><em> </em><em>MATRIX</em><em>.</em><em>.</em><em>.</em><em>.</em>
<em>HOPE</em><em> </em><em>TH</em><em>I</em><em>S</em><em> </em><em>HELP</em><em>S</em><em> </em><em>YOU</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em>
Step-by-step explanation:
"identity" means an operation that does nothing.
For adding numbers, adding 0 changes nothing, so 0 is the identity for addition.
For multiplication, multiplying by 1 changes nothing, so 1 is the identity for multiplication.
118 text messages.
59.50-30=29.5
29.5 divided by 0.25=118.
I hope this is right! :) Sorry if it isn’t!
You first have to find the slope using the slope formula. That looks like this with our values:

. So the slope is -1/8. Use one of the points to first write the equation in y = mx + b form. We have an x and a y to use from one of the points and we also have the slope we just found. Filling in accordingly to solve for b gives us

and

. Adding 5/8 to both sides and getting a common denominator gives us that

. Writing our slope-intercept form we have

. Standard form for a line is Ax + By = C...no fractions allowed. So let's get rid of that 8 by multiplying each term by 8 to get 8y = -x - 11. Add x to both sides to get it into the correct form: x + 8y = -11
Answer:0
Step-by-step explanation:
(2^28•5-5•19^-2)•(5^2 over 2^3)•2^28
(0-0)•((5x5) over (2x2x2))•2^28
0•(25/8)•2^28=0