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Tems11 [23]
3 years ago
8

Which is equivalent to (negative 2 m + 5 n) squared, and what type of special product is it?

Mathematics
1 answer:
dolphi86 [110]3 years ago
4 0

Answer:

4 m squared minus 20 m n + 25 n squared; a perfect square trinomial

Step-by-step explanation:

Given expression,

(negative 2 m + 5 n) squared

By using (a+b)² = a² + 2ab + b²,

∵ A trinomial which is the square of a binomial is called a perfect square trinomial.

Thus,  is a perfect square trinomial.

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Answer:

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Step-by-step explanation:

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5 0
3 years ago
What is the average of 45 and 19
Furkat [3]
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7 0
3 years ago
What does x equal in this equation: 24+3x=3x+3(7-1) Please help this is due tomorrow!
Zinaida [17]

                                              24 + 3x = 3x + 3(7 - 1)

Eliminate the parentheses:    24 + 3x = 3x + 3(6)

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Subtract  3x  from each side:       <em>24  =  18</em>

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I don't think so.
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3 0
3 years ago
Brandon sights a helicopter above a building that is 200 feet away at an angle of elevation of 30 degrees. To the nearest foot,
Firlakuza [10]
The problem says that <span>Brandon sights a helicopter above a building that is 200 feet away at an angle of elevation of 30 degrees. So, you can calculate the height asked, by following this procedure:
</span>
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 α=30°
 Opposite leg=x
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 When you substitute these values into the formula above (Tan(α)=Opposite leg/Adjacent leg), you have:

 Tan(α)=Opposite leg/Adjacent leg
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 You must clear "x":

 x=200xTan(30°)

 Therefore, the value of "x" is:

 x=115 feet
<span>
 How high above the ground the is the helicopter?

 The answer is: 115 feet</span>
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GalinKa [24]

Answer:

V=e^3

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
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