Answer:
(a) 2.6 m^2
(b) 3.9 m^3
Step-by-step explanation:
(a)
ABCD is a trapezoid.
A = (B + b)h/2
A = (1.7 m + 2.3 m)(1.3 m)/2 = 2.6 m^2
(b)
The skip is shaped like a prism with trapezoidal bases.
V = area of base * height
V = 2.6 m^2 * 1.5 m = 3.9 m^3
First what you need to do is distribute the properties. Take 2x times the -3 and you will get -1x. Then take the 12 and times it time x and you will get -12x, and then times 12 times 1 which is 12, now here's a fact so you don't get confused, instead of the plus and minus signs it's a negative and positive signs) then you take -1x and -12x and divide them by each other and you will get 12, X=12
283
Start by doing multiplication and division from left to right to follow the order of operations.
270 + 12 / 3 + 9
270 + 4 + 9
Now do addition and subtraction from left to right.
274 + 9
283
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Answer:
The Earth's outer shell is composed of plates that move a little bit every year.
Step-by-step explanation: