Answer:
the correct answer is y = x 2 + 3x - 5 and x + y = -10
Step-by-step explanation:
13: 72.25
14: 52
For 14, you need to split the figure into a triangle and rectangle.
The answer is 769.3 cm²
The volume of the cylinder is : V = π r² h
<span>The ratio between the radius of the base and the height of the cylinder is 2:3:
r/h = 2/3
h = 3/2r
V = 1617 cm
</span>π = 3.14
1617 = πr² * 3/2 r
1617 = πr³ * 3/2
1617 * 2/3 = πr³
1078 = πr³
r³ = 1078/π = 1078/3.14 = 343
r = ∛343 = 7 cm
h = 3/2r = 3/2 * 7 = 10.5 cm
The surface area of the cylinder is:
SA = 2πr² + 2πrh
= 2 * 3.14 * 7² + 2 * 3.14 * 7 * 10.5
= 307.72 + 461.58
= 769.3 cm²
Hi there!
x=8
<u><em>1.Subtract the answer with the 3 / subtract the terms:</em></u>
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<u><em>2.Divide the two terms:</em></u>
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Therefore, x=8
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Answer:
Step-by-step explanation:
its wierd but 2.22
