Answer:
I'm not sure what that U is for.
The answer is 459,461 These two do add to 920
Step-by-step explanation:
Remark
I'm going to make sure you are using consecutive odd numbers.
Let the smaller number = 2x - 1
Let the larger number = 2x + 1
Equation
2x - 1 + 2x + 1 = 920
4x = 920
x = 230
The consecutive numbers are 2*230 - 1 = 459
and 2*230 + 1 = 461
X=4 so your problem now would be 3+4=7
Hope this helps!
So in short your answer is 4
X cannot equal +2, and can't be -1. If you factor it, then you notice you get 2(x+2)(x-2). If you use either one for the x, one will be zero and the won't, and vise-versa.
Answer:
300 ft²
Step-by-step explanation:
The area (A) of a rhombus can be calculated using
A =
× product of diagonals, thus
A =
× 24 × 25 = 300 ft²
Answer: 0.5467
Step-by-step explanation:
We assume that the test scores for adults are normally distributed with
Mean : 
Standard deviation : 
Sample size : = 50
Let x be the random variable that represents the IQ test scores for adults.
Z-score : 
For x =85

For x =115

By using standard normal distribution table , the probability the mean of the sample is between 95 and 105 :-

Hence, the probability that a randomly selected adult has an IQ between 85 and 115 =0.5467