I believe it would be the 3rd one. (r=41/2) which is (radius=diameter/2)
~Hope This Helps~
The required amount Weiming has to pay is given by the limit of $150
more than the amount Joyce has to pay.
Response:
- The greatest amount Weiming has to pay is<u> $180</u>
<h3>Which method can be used to analyze the amount paid by Weiming and Joyce?</h3>
Amount Weiming agrees to pay ≥ 2 × Joyce agrees to pay
Amount Weiming agrees to pay ≤ 150 + Amount Joyce agrees to pay
Let <em>x</em> represent the amount Weiming agrees to pay, and let <em>y</em> represent
the amount Joyce agrees to pay, we have;
x + y = 210
x ≥ 2·y
x ≤ y + 150
When the amount Weiming is $150 more than Joyce, which is the
limiting amount for Weiming, we have;
x = y + 150
Which gives;
y + 150 + y = 210
2·y = 210 - 150 = 60
y = 60 ÷ 2 = 30
x = 30 + 150 = 180
Therefore;
- The greatest amount Weiming has to pay is, x = <u> $180</u>
Learn more about inequalities here:
brainly.com/question/17882496
Answer:
2×sqrt(2) = 2.828427125...
Step-by-step explanation:
x = "a positive number"
x + 56/x = x³
x² + 56 = x⁴
x⁴ - x² - 56 = 0
(x² + 7)(x² - 8) = 0
this is true only for
x² = -7
or
x² = 8
x² = -7 would mean that x is an imaginary number. so, that is not a valid solution here.
x² = 8 means
x = sqrt(8) = sqrt(4×2) = 2×sqrt(2) = 2.828427125...
<span>Expressing in simplest radical form just means simplifying a radical so that there are no more square roots, cube roots, 4th roots, etc left to find. It also means removing any radicals in the denominator of a fraction.</span>
