Answer:
The first one has the lowest cost per mL
Step-by-step explanation:
Devide each price by the mL to get the cost for 1 mL and then compare the results.
Step-by-step explanation:
The equation that represents the perimeter of the rectangle is given as;
2x + 2(x + 2) = 24 where x represents the width.
We solve for x;
2x + 2x + 4 = 24
4x + 4 = 24
4x = 24 - 4
4x = 20
x = 20/4
x = 5
We were informed that the length of the rectangle is 2 inches more than its width. This implies that the length is x+2 = 5+2 = 7.
The value of x from the set {1, 3, 5, 7} that holds true for the equation is 5. So, the width of the rectangle is 5 inches and its length is 7 inches.
Answer:

Step-by-step explanation:
In Step # 3, We need to divide rather than to subtract. So, the first mistake is done in step 3.
Answer:
C.
![12 \sqrt[3]{6c}](https://tex.z-dn.net/?f=12%20%5Csqrt%5B3%5D%7B6c%7D%20)
Step-by-step explanation:
![5 \sqrt[3]{6c} + 7 \sqrt[3]{6c} \\ = (5 + 7)( \sqrt[3]{6c}) \\ = 12 \sqrt[3]{6c}](https://tex.z-dn.net/?f=5%20%5Csqrt%5B3%5D%7B6c%7D%20%20%2B%207%20%5Csqrt%5B3%5D%7B6c%7D%20%5C%5C%20%3D%20%20%20%285%20%2B%207%29%28%20%5Csqrt%5B3%5D%7B6c%7D%29%20%5C%5C%20%20%3D%2012%20%5Csqrt%5B3%5D%7B6c%7D%20)
Answer:
Option B.
Step-by-step explanation:
The given expression is

It can be written as
![[\because \sin (30^\circ)=\dfrac{1}{2}]](https://tex.z-dn.net/?f=%5B%5Cbecause%20%5Csin%20%2830%5E%5Ccirc%29%3D%5Cdfrac%7B1%7D%7B2%7D%5D)

We know that sin is positive in first and second quadrant.
For first quadrant,

For second quadrant,

So, the required angles are
.
Therefore, the correct option is B.