Answer:
The answer would be 792
Step-by-step explanation:
Lateral surface area for this objects formula is 2lh + 2lb because of its rectangular prism shape.
Answer:
rounded to the nearest hundredth the value is 813.04
Step-by-step explanation:
Answer:
A measures 72 and B measures 108
Step-by-step explanation:
If the angles are supplementary, that means that they add up to equal 180. 3x + 12 + 4x + 28 = 180. Doing some algebra there gives you that 7x = 140 and x = 20. Sub in 20 to angle A to get 3(20) + 12 = 72, and sub in 20 to angle B to get 4(20) + 28 = 108. And of course, 108 + 72 = 180.
You don't just go removing numbers here and there without a good reason. In any case, your whole approach here is wrong. You're calculating 60 percent of 12. But the question says to take 12 out of a group of 60 and tell what percent of the group you have. That's (12/60) x 100.

<h2>
Explanation:</h2>
Remember you need to write complete questions in order to find exact answers. In this way you haven't provided any function, so I'll choose a quadratic function given by:

So we need to find the entire interval at which this function positive. Put another way:

By using graphing tool, we get the graph shown below. As you can see:
- The function decreases from

- The function increases from

- The graph of the function is a parabola that opens up.
But what is really importan in this problem is that:
- The function is positive over the interval

At this interval the function is positive, that is, 
<h2>Learn more:</h2>
Standard equation of the graph of a parabola:
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