naomi1913 naomi1913
  • 28-11-2021
  • Mathematics
contestada


y
∝
1
√
x
If
y
=
4
when
x
=
49
find,
x
when
y
=
14

y 1 x If y 4 when x 49 find x when y 14 class=

Respuesta :

surjithayer10otahza surjithayer10otahza
  • 29-11-2021

Answer:

x=4

Step-by-step explanation:

[tex]y \alpha \frac{1}{\sqrt{x} } \\or~y=\frac{k}{\sqrt{x} } \\when~x=49,y=4\\4=\frac{k}{\sqrt{49} } \\k=4 \times7=28\\y\alpha \frac{28}{\sqrt{x} } \\when ~y=14\\14=\frac{28}{\sqrt{x} } \\\sqrt{x} =\frac{28}{14} =2\\squaring\\x=2^2=4[/tex]

Answer Link

Otras preguntas

why does darkness effect light independent reaction of photosynethesis?
When a posted speed is 70 mph , the minimum speed limit is what?
A car travels 85 miles at an average speed of 34 mph. how many minutes does the journey take
60 min elapse. The minute hand makes a _______ turn clockwise.
f(x)= x exponent 2 - 8x+5 Find f(-1)
_____ makes elements stand out in a design. it can be achieved by placement, size, scale, or use of a bright color among black and white. A. Movement B. Balance
The subatomic particle that can absorb and emit light energy is the a. proton. b. neutron. c. electron. d. quark.
What method of separation can be used to separate iron from sand?
Find the pay earned: 33 hours at $5.15 per hour
which organ of mosquito produces sound? 1.stomach 2.mouth 3.wings 4.abdomen