What percentage of students has an arm span of at least 170 cm?
41%
45%
55%
59%
The stemplot below displays the arm spans, in
centimeters, for 44 students.
Arm Span (cm)
143
14 | 8
15134
155 69
16 | 0 1 2 2 2 2 3 3 4 4
16 5 5 6 799
1700 13
17 5 6 99
18 0 0 1 2 2 3
18 6 69
19 02
19
20 2
Key: 15/5 = 155 cm

answer: c

because if you look at the chart you can see a pattern and compare it to the question he simplify out your

but i think the formula is f(x)=6x

don't give

take it once

try and try and you will not

happy to

pls mark as brainliest

the solution of the equation is 2.23 ⇒ answer b

step-by-step explanation:

* lets revise the meaning of exponential function

- the form of the exponential function is y = ab^x, where a ≠ 0, b > 0 ,  

  b ≠ 1, and x is any real number

- it has a constant base b

- it has a variable exponent x

- to solve an exponential equation, take the log or ln of both sides,  

  and solve for the variable

* lets solve the problem

∵

- the base is 7 and the exponent is x

- insert ㏑ in both sides

∴

- use the rule

∴ x ㏑(7) = ㏑(77)

- to find x divide both sides by ㏑(7)

∴

* the solution of the equation is 2.23 to the nearest 2 decimal places