Need help on algebra

Everything is on the question

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5. How can you write the expression with a rationalized denominator? (1 point)
HERREN
2+v5
2-5
2. Ra
Oı
O9+4215
0_9-415
6. What is the simplest form of the number? (1 point)
64
0512
La La
0 16
42.67
7. Let Flx) = x-3 and g(x) = x (1 point
7. Let f(x) = x-3 and g(x) = x (1 point)
Find flg(4)
0
O 13
– 2. Ra
O 16
8. Find the inverse of the function. (1 point)
-3
=
1 +4
Ox – 4y – 3
42
3
4.3
(1 point)
X https://www.connexus.com/assessments/ engine.aspx?resiz =trued O princi
preview
2
Scientists can estimate the number of bacteria in a refrigerated food using the formula 0.2b =
where
20
bis the number of bacteria and t is the time in seconds. What was the approximate time a food was in a
refrigerator if there were 625 bacteria?
O 30 seconds
O
40 seconds
O
50 seconds
O 60 seconds
(1 point)
10. What function is shown by the graph below?
e
(x) =
Of(x)= 17-3
Of
5
(x)=V7-2
PG
–
(1 point)
10. What function is shown by the graph below?
3.
Of(x)=x-2
0}(0)= v*+2
Of)–
O/0)+2
1 point
11. What function is shown by the graph below?
11. What function is shown by the graph below?
(1 point)
1
finito
-2. RS
2
Of(x)=1+1 = -2
of(x)=1+-32-
Of(x) = 1 + 2x + 2
Of(x) = 1 + V1 – 2
point
12. In a tornado, the wind velocity in meters per second can be described by the
function vp=123 1134-3p where p is the air pressure in millibars. What is the air pressure of a