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Black_prince [1.1K]
3 years ago
5

PLEASE HELP IN ALGEBRA 2

Mathematics
1 answer:
FromTheMoon [43]3 years ago
6 0

Answer:

-2

(√7-3)(√7+3)

=(√7)²-3²

=7-9

=-2

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Determine which equation below has a solution of x= 1/2
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1 point An old Honda Civic can go 351 miles on average before it runs out of gas. Its tank holds 11 gallons of gas. What is the
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The circumference of a sphere was measured to be 82 cm with a possible error of 0.5 cm.
Nat2105 [25]

Answer:

A) Maximum error = 170.32 cm³

B)Relative error = 0.0575

Step-by-step explanation:

A) Formula for circumference is: C = 2πr

Differentiating with respect to r, we have;

dC/dr = 2π

r is small, so we can write;

ΔC/Δr = 2π

So, Δr = ΔC/2π

We are told that ΔC = 0.5.

Thus; Δr = 0.5/2π = 0.25/π

Now, formula for Volume of a sphere is;

V(r) = (4/3)πr³

Differentiating with respect to r, we have;

dV/dr = 4πr²

Again, r is small, so we can write;

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ΔV = 4πr² × Δr

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ΔV = ((2πr)²/π) × Δr

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ΔV = (C²/π)Δr

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Thus;

ΔV = (82²/π) × 0.25/π

ΔV = 170.32 cm³

B) Formula for relative error = ΔV/V

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Relative error = 170.32/2963.744

Relative error = 0.0575

3 0
2 years ago
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