Answer:
8
Step-by-step explanation:
Answer:
Yes, the value is a solution of the inequality.
Step-by-step explanation:
3s < 19; s = -6
3(-6) < 19
-18 < 19
TRUE!
Answer:
8 months
Step-by-step explanation:
The question asks for the minimum number of months it would take her to grow her hair ATLEAST 16 cm.
Lets solve this!
Her hair is ALREADY 4 cm
She needs to make it 16 cm or greater
That is:
16 - 4 = 12 cm MORE
Per month growth rate = 1.5 cm
So we will divide the amount she needs to grow (atleast) by the growth rate per month:
12/1.5
= 8
Thus, in 8 months, her hair will grow:
8 * 1.5 = 12 cm
and 4 cm from before, so
12 + 4 = 16 cm
So, it will take a minimum of 8 months
A(4) = 1/2 a(n - 1) + 12 = 36
1/2 * 3a + 12 = 36
3/2 a = 24
a = 16
so first term = 1/2 * 16 (1 - 1) + 12 = 12
which is different from any of the choices.
you sure you have the question right? Or maybe i misread it.