First of all, recall that 1.5m is the same as 150cm.
Now, we simply build a proportion where we consider 48 to be 100, and wonder what 150 will be:
![48\div 100 = 150 \div x](https://tex.z-dn.net/?f=48%5Cdiv%20100%20%3D%20150%20%5Cdiv%20x)
Solving for x, we have
![x = \dfrac{150\cdot 100}{48}=\dfrac{15000}{48} = 312.5](https://tex.z-dn.net/?f=x%20%3D%20%5Cdfrac%7B150%5Ccdot%20100%7D%7B48%7D%3D%5Cdfrac%7B15000%7D%7B48%7D%20%3D%20312.5)
Which actually makes sense, because we're stating that 1.5m is about 300% of 48cm, which means three times as much. Which is true, because three times 48cm means 144cm, which is about 1.5m
(40x) ^0.5= 5(x+3)^0.5
40x = 25(x+3)
40x= 25x+75
15x=75
x=5
Answer:
4. x = 7
5. A
Step-by-step explanation:
you can't use a calculator ?
4.
x² = 49
x = 7
5.
sqrt(4) = 2
triple root (8) = 2
sqrt(16) = 4
only sqrt(2) is a never-ending sequence of digits without any repeating pattern after the decimal point. and that is the meaning of irrational numbers. they can never be described by an expression a/b, where a and b are integer numbers.
Answer:
c(maybe?)
Step-by-step explanation:
dont give me a brainliest.