Answer:
Area of Trapezium=1/2h(L1+L2)
I think it will help you
if you want me to be real with you i don't know
Answer:
x y
-8 -2
-1 -1
0 0
1 1
8 2
Step-by-step explanation:
The given function is
![y=\sqrt[3]{x}](https://tex.z-dn.net/?f=y%3D%5Csqrt%5B3%5D%7Bx%7D)
We need to find the y-values for the given t-table.
In the given table the x-values are -8, -1, 0, 1, 8.
At x=-8,
![y=\sqrt[3]{-8}=-\sqrt[3]{2^3}=-2](https://tex.z-dn.net/?f=y%3D%5Csqrt%5B3%5D%7B-8%7D%3D-%5Csqrt%5B3%5D%7B2%5E3%7D%3D-2)
At x=-1,
![y=\sqrt[3]{-1}=-\sqrt[3]{1^3}=-1](https://tex.z-dn.net/?f=y%3D%5Csqrt%5B3%5D%7B-1%7D%3D-%5Csqrt%5B3%5D%7B1%5E3%7D%3D-1)
At x=0,
![y=\sqrt[3]{0}=0](https://tex.z-dn.net/?f=y%3D%5Csqrt%5B3%5D%7B0%7D%3D0)
At x=1,
![y=\sqrt[3]{1}=\sqrt[3]{1^3}=1](https://tex.z-dn.net/?f=y%3D%5Csqrt%5B3%5D%7B1%7D%3D%5Csqrt%5B3%5D%7B1%5E3%7D%3D1)
At x=-8,
![y=\sqrt[3]{8}=\sqrt[3]{2^3}=2](https://tex.z-dn.net/?f=y%3D%5Csqrt%5B3%5D%7B8%7D%3D%5Csqrt%5B3%5D%7B2%5E3%7D%3D2)
Therefore, the required table is:
x y
-8 -2
-1 -1
0 0
1 1
8 2
We are going to make simultaneous equations.
x will be our $3 ice cream and y will be our $5 ice cream
Equation1 ---- x + y = 50 (the sum of all the ice creams they sell)
Equation 2 ---- 3x + 5y = 180 Sum of all the $3 and $5 ice creams is $180
Since we can't solve for both variables we will put one of the variables in terms of the other.
Take x+y=50 and subtract y from both sides. (I could have done subtracted x - it did not matter). Now we have x= ₋ y +50 (negative y +50)
Now I am going to take equation 2 and replace the x with -y +50
3 (-y +50) + 5y = 180
Now I will use the distributive law on the 3 and what's in the parentheses:
-3y + 150 + 5y = 180
Now I will combine like terms (the -3y and the 5y)
2y + 150 = 180
Now subtract 150 from both sides of the equation
2y = 30
Divide both sides by 2
and get y= 15 They sold 15 ice creams that cost $5 each
Since equation 1 is x+y=50 we can replace y with 15
x + 15 = 50 Now subtract 15 from both sides x = 35
Since x represents the $3 ice creams, they sold 35 of those.
Check:
35 X 3 = $105
15 x 5 = + <u>75
</u> $180
