Simplify. 5 2+20 5 30 45 72 (The 5 2 is an exponent.)
2 answers:
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<em>So, we have the following equation...</em>
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<em>Remember, 5² also means 5x5.</em>
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<em>Therefore, </em>
<em>This means your final answer is 45.</em>
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Glad to help!
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Answer:
<em>The base is 24 cm long.</em>
Step-by-step explanation:
<u>Equations</u>
Let's call
b= base of the triangle
h=height of the triangle
The base is 9 cm longer than the height, thus:
b = h + 9
The area of the triangle is:
And its value is 180:
Multiplying by 2:
Operating:
Factoring:
The only valid positive solution is:
h = 15 cm
And b = h + 9 = 24
b = 24 cm
The base is 24 cm long.