The formula to convert celsius to fahrenheit is F=9/5c+32. convert 87° F to celsius .Round to the nearest degree
2 answers:
Answer:
31°C
Step-by-step explanation:
The formula to convert Celsius to Fahrenheit is F=9/5c+32.
To convert 87° F to Celsius plug in F = 87 in the above formula, we get
87 =
Now we have to isolate the variable and the constant.
Subtract 32 from both sides, we get
87 - 32 =
55 =
Multiply both sides by the reciprocal of -9/5
Which is called inverse operations to find the value of C.
The reciprocal of -9/5 is -5/9
C = 275/9
C = 30.5°
To round off to the nearest degree, we get
31°C
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Check the attachment.
Hope it helps you ;)
Answer:
0
Step-by-step explanation:
We want to compute the curve integral (or line integral)
where the force field F is defined by
F(x,y) = (y, -x)
and C is the path consisting of the line segment from (1, 5) to (0, 0) followed by the line segment from (0, 0) to (0, 9).
We can write
C =
where
= line segment from (1, 5) to (0, 0)
= line segment from (0, 0) to (0, 9)
so,
Given 2 points P, Q in the plane, we can parameterize the line segment joining P and Q with
<em>r(t) = tQ + (1-t)P for 0 ≤ t ≤ 1 </em>
Hence can be parameterized as
for 0 ≤ t ≤ 1
and can be parameterized as
for 0 ≤ t ≤ 1
The derivatives are
and
In consequence,