If you get confused by logarithms, here's an easier way to think about this problem: What power of 2 equals 128? Well, we know 2^3 = 8, then 2^4 must equal 16. Doubling every times, we get 2^5 = 32, 2^6 = 64 and 2^7 = 128. So, the value of log₂128 is 7.
<h3>Find a,b & c⤵️</h3>
<h3>Find y-intercept⤵️</h3>
<h3>Minimum or maximum value⤵️</h3>
- The minimum value is -9 at x=-2
<h3>Axis of symmetry⤵️</h3>
<h3>Find x-intercepts⤵️</h3>
Answer:
10. (5, 6)
11. (1, 2)
12. (7, 8)
13. (10, 11)
14. (27, 28)
15. (11, 12)
Step-by-step explanation:
If you're not familiar with the squares of small integers, your calculator can help you figure this.
10. √28 ≈ 5.291 . . . . between 5 and 6
11. √3 ≈ 1.732 . . . . between 1 and 2
12. √59 ≈ 7.681 . . . . between 7 and 8
13. √115 ≈ 10.724 . . . between 10 and 11
14. √772 ≈ 27.785 . . . . between 27 and 28
15. √140 ≈ 11.832 . . . . between 11 and 12
Answer:
Step-by-step explanation:
There are only 5 solutions:
x=-1
x=-1/3
x=0
x=1
x=8/3
See the graph
In blue: y=[x]²
In red : y=x+2(x-[x])
Answer:
yes
Step-by-step explanation:
4/3 is equal too 1.3333333333333333333333333333333333333333333333333333 (repeating)
