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Debora [2.8K]
3 years ago
7

Help would be much appreciated

Mathematics
2 answers:
AURORKA [14]3 years ago
7 0

Answer:

Option C

49

Step-by-step explanation:

sides of triangle:

  • 4
  • √2²+4²=√20=4.47
  • √2²+4²=√20=4.47

P=4+4.47*2=12.94

Option C is correct

================

x=4, y=5

3x²+4y⁰×x⁻¹=3×4²+4×5⁰×4⁻¹=48+1=49

pentagon [3]3 years ago
3 0

Answer:

Given

Step-by-step explanation:

Question 1)

Answer is c) 12.94 units

Because,

The sides will be √20,√20 and 4 units, so you add them

You get √20 through Pythagorean theorem √(2^2 + 4^2)

= 4.47

Question 2)

Answer:

3x^2 + 4y^0 +x^-1

Substitute the values,

3*(4)^2 + 4*(5)^0 + (4)^-1

3*16 + 4*1 * 1/4

( Any number raised to 0 is 1

4^-1 = 1/4^1 )

= 49

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