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Nana76 [90]
3 years ago
8

If triangle DEF is an isosceles triangle with DE is congruent to EF, find x and the measure of each side

Mathematics
1 answer:
Rudik [331]3 years ago
3 0

Step-by-step explanation:

Given that,

DE = 8x - 13

EF = 5x + 17

DF = x + 21

Also,

DE = EF

which means that,

8x - 13 = 5x + 17

8x - 5x = 17 + 13

3x = 30

x = 30/3

x = 10

Now,

DE = 8x - 13 = 8×10 - 13 = 80 - 13 = 67cm

EF = 5x + 17 = 5×10 + 17 = 50 + 17 = 67cm

DF = x + 21 = 10 + 21 = 31cm

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3 years ago
Let p= x^2-7.
Advocard [28]

Since p = x² - 7, you can substitute/plug in p for x² - 7

So:

(x² - 7)² - 4x² + 28 = 5

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8 0
3 years ago
What is the property for 16=16
mestny [16]

Answer:

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Step-by-step explanation:

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3 0
3 years ago
How do you find the x value of an angle​
I am Lyosha [343]

Answer:

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Step-by-step explanation:

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3 years ago
Find xif 4; 4+2×;4+4× are in Geometric sequences​
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Given:

4,4+2x,4+4x are in geometric sequences​.

To find:

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Solution:

If a, b, c are in geometric sequences​, then

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It is given that 4,4+2x,4+4x are in geometric sequences​. By using (i), we get

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3 years ago
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