A hospital has a large fish tank with the dimensions shown. The tank does NOT have a cover. What is the surface area of the fish tank? Math item stem image CLEAR CHECK 25 square feet 332 square feet 392 square feet 480 square feet

Answer:

30

Step-by-step explanation:

Adjacent angles of a parallelogram add up to 180 degrees, meaning that (3x)+(x+60)=180 degrees. You can use this to set up the following equation:

3x+x+60=180

4x=120

x=30 degrees. Hope this helps!

Final answer:

In a parallelogram, opposite angles are equal. Therefore, set 3x (angle A) equal to x + 60 (angle D). Solving for x, we get x = 30.

Explanation:

In this case, we're working with a parallelogram, and one of the properties of a parallelogram is that its opposite angles are equal. That means that ∠A is equal to ∠D. So we set (3x) equal to (x + 60).

To determine the value of x, we can solve this equation:
3x = x + 60. Subtract x from both sides to get 2x = 60, then divide by 2 to get x = 30.

So, the value of x that makes ABCD a parallelogram is 30.

Learn more about Parallelogram here:

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Answer: Yes it is true. We can write an equation by setting an expression equal to itself.

Step-by-step explanation:

Let we take an expression say 2x.

Since we know that any expression is equal to itself, so we can write it as 2x=2x, which does not give any solution or we can say this equation has no solution but we can not say it is false because they are actually equal.

Therefore, we can write an equation by setting an expression equal to itself. It would be a true equattion.