B. the x and y values were not identified correctly
I have nothing to go off on, but an equation that would fit for (1,2) is y=2x.
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hope it helps
Answer:
the first answer
Step-by-step explanation:
Complete Question:
Find the attached image for the diagram of the question
A. 3 B √34 C √65 D √41
Answer:
The length of x, is √65
Step-by-step explanation:
To determine the length, x, we are going to apply Pythagoras theorem;
Consider triangle ABC;
BC² = AB² + AC²
5² = 3² + AC²
AC² = 5² - 3²
AC² = 25 - 9
AC² = 16
AC = √16
AC = 4
Now, we can calculate length, x
Consider triangle ACD
AD² = AC² + CD²
x² = 4² + 7²
x² = 16 + 49
x² = 65
x = √65
Answer:
The three sides of isosceles triangle are DE = DF = 11 unit , and EF = 13 unit
Step-by-step explanation:
Given as :
DEF is a isosceles Triangle , with vertex D
The three sides is as
DE = x + 7
DF = 3x - 1
EF = 2x + 5
∵ DEF is an isosceles triangle then two of its sides must be equal
So , Let DE = DF
Or, x + 7 = 3x - 1
Or, 7 + 1 = 3x - x
Or, 8 = 2x
∴ x = 4
So, The measure three sides of isosceles Triangle are :
DE = x + 7 = 4 + 7 = 11 unit
DF = 3x - 1 = 3×(4) - 1 = 11 unit
EF = 2x + 5 = 2×(4) + 5 = 13 unit
Hence The three sides of isosceles triangle are DE = DF = 11 unit , and EF = 13 unit Answer