Answer:
16 years old
Step-by-step explanation:
The age of his sister = 12 years old
Gasta is 4 years older than his sister,
The age of Gasta
= 4 + 12
= 16 years old.
Therefore,
Gasta is 16 years old.
The lengths of the two segments below then tell whether they are congruent
YZ = 4
XW = 12
not congruent
This is further explained below.
<h3>What is a number line?</h3>
Generally, A number line is a depiction of a graded straight line that serves as an abstraction for real numbers, which are symbolized by the
Number lines are used in introductory mathematics. It is generally accepted that a real number may be assigned to each point on a number line and that each point can be assigned to a real number.
YZ = Z - Y = 1 -(-3) = 4
XW = W -X = 5 -(-7) = 12
Because the segments are not the same length, they cannot be considered congruent.
In conclusion, It is self-evident that segment YZ will not have the same length as segment XW since it is just a portion of the latter.
Read more about the number line
brainly.com/question/13189025
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3x=14-5
3x=14-5
3x=9
x=9 ➗ 3
x= 3
the answer is 3
Answer:
The answer to your question is:
16.- x = -6
17.- x = -4; x = 2
18.- x = -5
Step-by-step explanation:
16.- 
x + 6 = 0(x - 4)
x + 6 = 0
x = - 6
17.- 
(x + 4) (x - 2) = 0)(x + 6)
(x + 4)(x - 2) = 0
x + 4 = 0 x - 2 = 0
x = - 4 x = 2
18.- 
2x + 10 = 0(3x - 12)
2x + 10 = 0
2x = - 10
x = - 10/2
x = -5
