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BartSMP [9]
4 years ago
10

To solve 3x squared minus 9, do i have to find the square root of both numbers first?

Mathematics
2 answers:
inna [77]4 years ago
7 0
Yes you do have to square both sizes
Mars2501 [29]4 years ago
3 0
Nope, and the answer would be Zero
Hope this helps :)
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3 years ago
Help pleasee<br> Qn is attached belowww <br> PLEASE HELPP
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Answer:

QR = 65.4 m

Step-by-step explanation:

a. Apply Law of Cosines to find QR:

p² = q² + r² - 2qr × Cos P

p = QR = ?

q = PR = 150 m

r = PQ = 120 m

P = 25°

Plug in the values

p² = 150² + 120² - (2)(150)(120) × Cos(25°)

p² = 22,500 + 14,400 - 36,000 × 0.9063

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3 years ago
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hoa [83]

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Step-by-step explanation:

5 0
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daser333 [38]
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4 years ago
Help please I'm not getting this at all. I'll send the whole picture ​
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Answer:

true. hope this helps!!

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3 years ago
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