Starting at sea level, a submarine descended at a constant rate to a depth of - 5/6 mile relative to sea level in 3/4 minutes. T
1 answer:
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To find the inverse you have steps
1. replace f(x) with y
2. swich x and y places
3. solve for y
4. replace y with f⁻¹(x) (read 'f inverse')
so we have
f(x)=2x+1
replace f(x) with y
y=2x+1
switch x and y
x=2y+1
solve for y
x=2y+1
subtract 1
x-1=2y
divide both sides by 2
=y
y=
repplace y with f⁻¹(x)
f⁻¹(x)=
1. replace f(x) with y
2. swich x and y places
3. solve for y
4. replace y with f⁻¹(x) (read 'f inverse')
so we have
f(x)=2x+1
replace f(x) with y
y=2x+1
switch x and y
x=2y+1
solve for y
x=2y+1
subtract 1
x-1=2y
divide both sides by 2
y=
repplace y with f⁻¹(x)
f⁻¹(x)=
Answer:
135°
Step-by-step explanation:
To convert from radian measure to degree measure
degree measure = radian measure × , so
degree = ×
Cancel π on numerator/denominator and 4, 180 by 4, leaving
degree = 3 × 45 = 135°