Answer:

Step-by-step explanation:
When multiplying fractions, all you have to do is multiply the numerators and denominators together from each fraction. Meaning:


Simplify:


Answer:
xy hfhxhshdjldkgskgzkgxkgzkgxigxg
Answer:
0.09022
Step-by-step explanation:
this is basically about knowing how far to move the decimal point.
the decimal point is moved 4 places plus one place = 5 places to the left. so in the answer (9022) you must simply move the decimal place 5 to the left:
0.09022
Answer:
254.4 in²
Step-by-step explanation:
Area of a circle is given by the formula:

Our radius is 9 so we substitute this into the equation:
π(9)² = 81π
81π = 254.4 in²
Answer:
z = 4
y = -1
x = 2
Step-by-step explanation:
x - y = 3
Therefore => x = 3 + y
y + 2z =7
Therefore => y= 7 - 2z
We have the equation :
2x + 3y + 4z = 17
2(3 + y) + 3(7 - 2z) + 4z = 17
6 + 2y + 21 - 6z +4z = 17
2(7 -2z) - 2z + 27 = 17
14 - 4z - 2z + 27 = 17
-6z + 41 = 17
-6z = -24
z = 4