Please, for clarity, indicate exponentiation using the " ^ " symbol.
y = - 3x^5 ("Negative three times the 5th power of x")
y = 3x^8
y - -3(0.5)^x
y = -2^4
An exponential function has an exponent which is variable, where the base stays constant; the base cannot be a negative number or a zero. The third answer choice is the correct one, as we raise the constant 0.5 to the power x:
y = -3(0.5)^x
The answer will be (B) hope this helps!
:D
You need to <span>draw the diagram to understand the problem easily. Teh diagram will show the right triangle, acute angle with the base 7º, height is 663 m, and "x" is the base of the triangle.
using the tangent ratio:
tan</span>Θ = opposite / adjacent
<span>
tan7º = 663 m / x
x = 663 m / tan7º
x = 5,399.7 m
change m to km. 1,000 m = 1km
5,399.7m * 1km/1,000 m = 5,399.7 km/1000 = 5.3997 km or 5.4 km
B. 5.4 km </span>
13. 10% of 40
= 40 × 0.10 = 4
14. 12% of 100
= 100 × .12 = 12
15. 99% of 60
= 60 × .99 = 59.4
16. 100% of 81
= 81 × 1 = 81
17. 45% of 360
= 360 × .45 = 162
18. 55% of 1,024
= 1024 × .55 = 563.2
19. 45 + n = 97
n = 97 - 45 = 52
20. n - 18 = 100
n = 100 + 18 = 118
21. n - 72 = 91
n = 91 + 72 = 163
22. n + 23 = 55
n = 55 - 23 = 32
23. 5 × t = 105
t = 105 ÷ 5 = 21
24. b ÷ 13 = 8
b = 8 × 13 = 104
25. k × 18 = 90
k = 90 ÷ 18 = 5
26. d ÷ 7 = 8
d = 8 × 7 = 56
