Answer:
The answer to your question is B = 67°
Step-by-step explanation:
Data
Complementary angles
A = (x + 10)
B = (3x + 28)
When Complementary angles are sum up the result is 90°.
Process
1.- The sum of A + B equals 90°
A + B = 90°
2.- Substitution
(x + 10) + (3x + 28) = 90°
3.- Simplification
x + 10 + 3x + 28 = 90
4x + 38 = 90
4x = 90 - 38
4x = 52
x = 52/4
x = 13
4.- Find B
B = 3(13) + 28
B = 39 + 28
B = 67°
<span>If k=3, then you must be diving the polynomial by (x-3) which means you substitute x=3 into the formula. The remainder is whatever you have left over.
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Inverse, baseically
replace f(x) with y
switch all x and y
solve for y
replace y with f⁻¹(x)
f(x)=6(x+2)-3
replace with y
y=6(x+2)-3
switch x and y
x=6(y+2)-3
solve for y
x=6y+12-3
x=6y+9
minus 9
x-9=6y
divide 6
1/6x-3/2=y
replace
f⁻¹(x)=1/6x-3/2
when x=21
f⁻¹(21)=1/6(21)-3/2
f⁻¹(21)=21/6-3/2
f⁻¹(21)=21/6-9/6
f⁻¹(21)=12/6=
f⁻¹(21)=2
answer is f⁻¹(21)=2
inverse function is
f⁻¹(x)=1/6x+3/2
Answer:
y > 4
Step-by-step explanation:
2 (5y-4)>32
Divide each side by 2
2/2 (5y-4)>32/2
5y-4 > 16
Add 4 to each side
5y-4+4 > 16+4
5y > 20
Divide each side by 5
5y/5 > 20/5
y > 4