Wahl421
Wahl421 Wahl421
  • 26-04-2018
  • Mathematics
contestada

What is the value of x to the nearest tenth?

A. 10.5
B. 23.5
C. 4.8
D. 14.1

What is the value of x to the nearest tenth A 105 B 235 C 48 D 141 class=

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choixongdong
choixongdong choixongdong
  • 26-04-2018
18.8 / 2 = 9.4

x^2 = 4.7^2 + 9.4^2
x^2 = 22.09 + 88.36
x^2 = 114.45
x = 10.5

answer
A. 10.5
Answer Link
prestonshelton
prestonshelton prestonshelton
  • 26-04-2018
Hello!

You can use the Pythagorean Theorem

18.8 / 2 = 9.4

[tex] 4.7^{2} + 9.4^{2} = c^{2} [/tex]

square the numbers

[tex]22.09 + 88.36 = c^{2} [/tex]

Add

[tex]110.45 = c^{2} [/tex]

Take the square root of both sides

10.5 = c

The answer is A) 10.5

Hope this helps!
Answer Link

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