leila0202
leila0202 leila0202
  • 25-02-2018
  • Mathematics
contestada

Please help with question 15 and 16!!!

Please help with question 15 and 16 class=

Respuesta :

Catya
Catya Catya
  • 25-02-2018
15. [4] insufficient information. only given SA
16. There are 3 right triangles, 3 Pythagorean theorem equations 
x²+b²= 16²
12²+a² = x²
a²+4² = b²

combine equations using substitution to get in terms of only x
substitute b² for (a² +x²) in first equation
x²+a²+4²=16²
substitute a² for (x² - 12²)
x²+x²-12²+4² = 16²
solve for x
2x² - 144 + 16 = 256
2x² = 256 + 144 - 16
2x² = 384
x² = 384/2
x² = 192
x = 13.85

rounded to nearest tenth, x = 13.9




Answer Link

Otras preguntas

A manufacturer buys bolts from a supplier. The bolts cost 0.17 cents each, but the manufacturer made a deal with the supplier and get 4000 bolts for $595.50. To
FACT of the day "The cause of the popping sound produced by knuckle cracking(fingers) is largely a mystery."
Which of these organisms needs care from its parents after birth? A. frog B. turtle C. mouse D. snake
Water moves between the ocean, atmosphere, and land. In which form does water enter the atmosphere?
What happened when the colonists boycotted goods that carried British tax?
which one of the following statements is most accurate regarding the manpower compact
Simplify the expression 9r+22-4r-5
what did the plymouth colony hunt for
how many dimes would you need to make $90.10
Can someone help me on this question please