12 girls • 8 boys. more girls chose the piano than boys.
Answer:
Step-by-step explanation:
Assuming the system is solvable in the first place, create an augmented matrix of coefficients from the equations. Then put the matrix into reduced row echelon form.
Example is attached.
"Demonstrate by solving the following system."
You need to provide the system of equations.
Answer:
2 cm
Step-by-step explanation:
The red triangle has legs measuring 1.2 cm and 1.6 cm.
You need x, the length of the hypotenuse.
Use the Pythagorean theorem.
(1.2 cm)² + (1.6 cm)² = x²
4 cm² = x²
x = 2 cm
Answer: 2 cm
Answer:
3rd and 6th are correct
Step-by-step explanation:
0.9% because you remove the 0s simple