Answer:
45/4
Step-by-step explanation:
We can interpret the question to have two equation which can be solve simultaneously
a+b=7------------(1)
a-b=2------------(2)
From eqn(2) make a subject of formula
a=2+b--------(3)
Substitute the (3) into eqn(1)
a+b=7------------(1)
2+b+b=7
2b=7-2
2b=5
b=5/2
From equation (3) substitute value of b to find a
a=2+b--------(3)
a= 2+5/2
a=9/2
Then What is the value of a x b ?
9/2× 5/2
=45/4
Answer:
42 cubic units
Step-by-step explanation:
2x3x7
Answer:
Verified
Step-by-step explanation:
Let the 2x2 matrix A be in the form of:
Where det(A) = ad - bc # 0 so A is nonsingular:
Then the transposed version of A is
Then the inverted version of transposed A is
The inverted version of A is:
The transposed version of inverted A is:
We can see that
So this theorem is true for 2 x 2 matrices
Answer: $32.38
Explanation:
64.75 = 100%
So that mean 50% would be half of 64.75
64.75 ÷ 2 = 32.375
Answer: No solution
Step-by-step explanation: -12x-14=-62-12x
You would have to simplify the -12x but you can't so this would be a no solution.