The inequality h > 48 represents the minimum
height h necessary to ride a certain roller
coaster Who can ride the roller coaster?
A. Sara only
B. Anna only
C. Anna and Sara
D. Anna, Patrick, and Miguel
Heights (in.)
Miguel 42
Patrick
Anna
48
Sara
52
45

Option C. Anna and Sara

Step-by-step explanation:

The complete question in the attached figure

Let

h ----> the minimum  height h in inches necessary to ride a certain roller  coaster

we  have

The solution for this inequality is the interval [48,∞)

so

The value of h must be greater than or equal to 48 inches

Verify who can ride the roller coaster

1) Miguel 42 in

substitute the value of h in the inequality

----> is not true

therefore

Miguel can't ride the roller coaster

2) Patrick 45 in

substitute the value of h in the inequality

----> is not true

therefore

Patrick can't ride the roller coaster

3) Anna 48 in

substitute the value of h in the inequality

----> is true

therefore

Anna can ride the roller coaster

4) Sara 52 in

substitute the value of h in the inequality

----> is true

therefore

Sara can ride the roller coaster

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)

you didn't post any answer choices, so its not 100% clear what your teacher is looking for

however, log(15/7) is equivalent to log(15) - log(7)

i'm using the rule log(x/y) = log(x) - log(y)