A must have the same numbers of columns as b has rows; looking at the matrices, the row of a must be the same length as the columns of b...... so multiplication is defined
hope this helps!!!!!
Answer:
1. area = pi*r^2
herein, dia = 20 inch
radius = 10 inch
area = 22/7*10*10
= 314.2 square inch
Step-by-step explanation:
Answer:
D. Graph c
Step-by-step explanation:
I got this answer correct on Gradpoint
Answer:
30°
Step-by-step explanation:
It tells us that MFE is equal to (x + 6)° so we need to find x
The angle accross from MFE is RFT. These angles are congruent, because they are a vertical pair. So RFT is also equal to (x + 6)°
The angle RFT and PFR combined form a right angle. This means that RFT + PFR = 90°.
They told us that PFR = (3x - 4)°
so that means that (x + 6) + (3x - 4) = 90°
Knowing that we can just solve the equation by combining like terms
4x + 2 = 90
Subtract two from both sides
4x = 88
And then divide by 4
x = 22
Now we can plug in 22 in the original equation to find MFE
22 + 6 = 30
so MFE = 30°
