Answer: John:£800
Rachel:£1600
Step-by-step explanation:
Since John and Rachel shared £2400 in the ratio 2:4, it means that £2400 was equal to(2+4) units, which is 6 units.
Thus, each unit is £2400/6= £400
Hence, John got £400x2=£800, and Rachel got £400x4=1600.
Hope u understand my solution. :)
Answer:
a) 200 mm^2
b) 500 mm^2
c) 3.75e + 8
d) 6390 cm^2
e) 650 cm^2
f) 20 m/s
Step-by-step explanation:
For a) and b): 1 cm = 10 mm, multiply 20 (and 50) by 10
For c): the formula is to multiply 1e + 8
For d): 1 Liter = 1000 Cubic Centimeters (hopefully that's what you're referring to)
For e): 10 mm = 1 cm, divide by 10
For f): divide the value by 3.6
B: ray
Rays are a linear formation that start at a point and continue forever in a direction. The photo shows a point on one end, and an arrow on the other indicating that it starts at the point and continues forever past the arrow.
Answer:
2.275%
Step-by-step explanation:
We start by calculating the z-score
Mathematically;
z-score = (x-mean)SD
here, x = 70.5
mean = 65.5
SD = 2.5
Substituting these values;
z = (70.5-65.5)/2.5
= 5/2.5 = 2
So we want to calculate the probability that;
P( z> 2)
We check the standard normal distribution table for this
That will be
0.02275
In percentage, this is 2.275 %
You can do addition and substraction operations with polynomials similarly as with simple real numbers.
First of all you have to open brackets and then you can add numbers (-7-4=-11). Then the result is following:
