Answer:
16 attires
Step-by-step explanation:
Let us represent the number of attires:
Sally has initially = x
Sally lends half her collection of formal attire to her sister Annie
This means, Sally has currently = 1/2x attires
Sally then buys four more attires. If she had 12 attires now.
Hence, this is expressed Mathematically as:
1/2x + 4 = 12
1/2x = 12 - 4
1/2x = 8
x/2 = 8
Cross Multiply
x = 8 × 2
x = 16
Therefore, the amount of attires Sally had initially = 16 attires
Answer:
1000+1000=2000
Step-by-step explanation:
Answer:
a) Normal Distribution
b) 0.146
c) 0.070
Step-by-step explanation:
We are given the following information in the question:
The number of accidents per week at a hazardous intersection varies with mean 2.2 and standard deviation 1.4
a) 
: mean number of accidents per week at the intersection during a year (52 weeks)
According to central limit theorem, as the sample size becomes larger, the distribution of mean approaches a normal distribution.
Since we have a large sample, the approximate distribution of is a normal distribution with
b) P(mean is less than 2)
Formula:
P(x > 610)
Calculation the value from standard normal z table, we have,
c) P(fewer than 100 accidents at the intersection in a year)
P(x < 100)
Calculation the value from standard normal z table, we have,
It'd be best if you were to enclose that fraction 4/3 inside parentheses:
<span>2>8−(4/3)h
Mult. all 3 terms by 3: 6>24 -4h
Add 4h to both sides: +4h +4h
------------------
7+4h > 24
Subtract 7 from both sides: -7 -7
------------------
4h > 17
Then h>17/4 (answer) Note: We want h to be positive. That's why I moved (-4/3)h to the other side of the = sign.</span>
Answer:
43.99
Step-by-step explanation:
because I said it was
