Davis, roy, and tom are on the rowing team. each sits in a different position
(front, middle, and end) and is a different age (18, 19, and 20).
• tom and the 19-year-old do not sit in the rear.
• the person who sits in the rear is 20 years old.
• neither tom nor roy sits in the front.
who sits in the middle, and how old is he? be sure to check both answers.
o a. tom
o
b. 19
c. 20
d. davis
e. roy
o
f. 18

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Ответ:

xxxamslashxxx9

01.05.2022

Mathematics

Option 2 and 3 - 3 and $-\frac{1}{2}$

Step-by-step explanation:

Given : Equation (4x-5)^2=49

To find : What are the possible values of x ?

Solution :

Equation (4x-5)^2=49

Taking root both side,

$\sqrt{(4x-5)^2}=\sqrt{49}$

$(4x-5)=\pm 7$

Taking 4x-5=7

4x=7+5

4x=12

$x=\frac{12}{4}$

x=3

Taking 4x-5=-7

4x=-7+5

4x=-2

$x=-\frac{2}{4}$

$x=-\frac{1}{2}$

The possible values of x are 3 and $-\frac{1}{2}$

Therefore, option 2 and 3 are correct.

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