I think it’s C. I plugged it on to a graph and shows that graph a is steeper than graph b. red is graph a. blue is graph b.
160 is the first because 1 inches 20 but it says 2 inches so at 40+40+40+40
and the 2nd part is yes he is correct because he converted the inches into feet so i think he is also correct
Answer:
Y=3x+5
Step-by-step explanation:
If we take x = 1, according to the first function (the answer) y would be 8.
Other options:
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Formula 3:
Y= 2^x+5 == 7
Formula 4:
Y = x+8 == 9
True answer = 10.
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Ok, so the last one seems more accurate lets test the first and last one on two more numbers:
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X = 15
Formula 1:
50
Formula 4:
23
True answer = 60.
The first formula wins.
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X= 10
Formula 1:
35
Formula 4:
18
True answer = 41
The first formula wins.
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So, we can see that the first formula is most accurate.
It comes from integrating by parts twice. Let
Recall the IBP formula,
Let
Then
Apply IBP once more, with
Notice that the ∫ v du term contains the original integral, so that
Answer: The approximate area of the circle is: <span>3,629.84 cm² .</span>
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Area of a circle, "A" : A = π * r² ;
in which: A = Area of circle ;
π <span>≈ 3.14 ;
</span> r = radius;
radius of a circle, "r" = d / 2 ; in which: "d = diameter" ;
Given "d = 64 cm " ;
r = d / 2 = 64 cm / 2 = 32 cm ;
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So; A = π * r² ;
A ≈ (3.14) * (32 cm)² ;
A ≈ (3.14) * (1156 cm²) ;
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A ≈ 3,629 .84 cm² .
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