I think is closer to 4,200
Answer:
Step-by-step explanation:
<u>Given:</u>
- f(x) = - x² - 1
- g(x) = x + 5
<u>Find f(g(x)):</u>
- f(g(x)) =
- f(x + 5) =
- - (x + 5)² - 1 =
- - x² - 10x - 25 - 1 =
- - x² - 10x - 26
Answer:
12 + 1.79(x) ≤ 50
Number of drill bits = 21
Step-by-step explanation:
Given:
Total amount = $50
Amount of book = $12
Price of each bit = $1.79
Find:
Number of drill bits
Computation:
Assume, Number of drill bits = x
So,
12 + 1.79(x) ≤ 50
1.79(x) ≤ 38
x ≤ 21.220
Number of drill bits = 21
Yes
remember to use the BODMAS RULE always for these type of questions :)
STEP-BY-STEP SOLUTION:
Let original price = x
( 100% - 20% )x = $44
0.8x = 44
x = ( 44 / 80 ) × 100%
x = $55
Okay, so you are asking how they came up with 0.8 as shown in the 2nd line above which I will rewrite below:
0.8x = 44
The 0.8 refers to how much of x ( original price ) is left in the new price.
So, if:
x = 100%
Then:
New price = x - 20% = 100% - 20% = 80%
Now, to get 0.8 is as follows:
80% = 0.8