Subtracting the polynomials will give us:
(7.8x-3.4y+z)-(-9.2x+4.8y-2.1z)
=(7.8x+9.2x)+(-3.4y-4.8y)+(z+2.1z)
=17x-8.2y+3.1z
Answer: 17x-8.2y+3.1z
Answer:
49
Step-by-step explanation:
b^c
Let b = 7 and c = 2
7^2
7*7 = 49
Any time we have a single positive tile pair up with a single negative tile, those two tiles cancel out.
Three positive tiles and three negative tiles will pair up and cancel out. We're left with two positive tiles only. This represents the number 2.
In other words, 5 + (-3) = 5 - 3 = 2
Answer:
2 1/4
Step-by-step explanation:
1/3 = 3/4
3/4 ÷ 3 = 1/4
1/3 ÷ 3 = 1/9
1/9 recipe with 1/4 flour
1/9 x 9 = 9/9 = 1
1/4 x 9 = 9/4 = 2 1/4
for a recipe, it will need 2 1/4 cups of flour
Assuming the 10 represents the circumference of the circle (not really clear in the pic) then the area of the circle is found by this equation:
Area=c^2/4pi
(C being circumference, the ^2 meaning squared, and pi of course being the infinite number found by Archimedes, but normally calculated as 3.14 or 3.14)
Using that equation (substitute the C for the 10) you get 7.9577
Round this off to about 7.96, or 8. Your choice.
~Hope this helps!
