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Veronika [31]
3 years ago
13

Find the sum 12x^2+9x^2

Mathematics
1 answer:
katen-ka-za [31]3 years ago
5 0
Let's simplify step-by-step.
<span><span>12<span>x^2</span></span>+<span>9<span>x^2
</span></span></span>Combine Like Terms:
<span>=<span><span>12<span>x^2</span></span>+<span>9<span>x^2
</span></span></span></span><span>=<span>(<span><span>12<span>x^2</span></span>+<span>9<span>x^2</span></span></span>)
</span></span><span>=<span>21<span>x^<span>2</span></span></span></span>
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If 3x+5=11 what is the value of x-2
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Answer:

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Step-by-step explanation:

x = 2

2 x 3 = 6 + 5 = 11

2 - 2 = 0

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3 years ago
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vladimir2022 [97]
<h3>Answer: Choice B) 8.57</h3>

==================================================

Explanation:

The triangles are similar through the AA (angle angle) similarity rule. Note how the angle markers correspond and match up. Example: angle C and angle F both have triple angle markers to indicate these angles are congruent.

The corresponding sides pair up to form equal fractions. AB and DE form AB/DE which is equal to AC/DF, as these two sides correspond as well.

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11*15 = 7*(15+x) ....... cross multiply

11*15 = 7*15+7*x ...... distribute

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3 0
3 years ago
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2 years ago
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As a simplified radical
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3 years ago
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