Answer:
or
Step-by-step explanation:
The opposite of is
Convert decimal number −0.75 to fraction .
Reduce the fraction to lowest terms by extracting and canceling out 25.
Least common multiple of 4 and 5 is 20. Convert and to fractions with denominator 20.
Since and have the same denominator, add them by adding their numerators.
Add -15 and 8 to get -7
Convert decimal number 0.4 to fraction . Reduce the fraction to lowest terms by extracting and canceling out 2.
Least common multiple of 20 and 5 is 20. Convert and to fractions with denominator 20.
Since and have the same denominator, add them by adding their numerators.
Add -7 and 8 to get 1.
Least common multiple of 20 and 4 is 20. Convert and to fractions with denominator 20.
Since and have the same denominator, subtract them by subtracting their numerators.
Subtract 15 from 1 to get -14.
Reduce the fraction to lowest terms by extracting and canceling out 2.
or
Hope this helps! Brainliest would be much appreciated! Have a great day! :)
Answer:
Step-by-step explanation:
let 7 + 3√2 be an rational number where
7+3√2 = a/b [ a and b are coprime and b is not equal to zero]
3√2= a/b-7
3√2 =( a-7b) /b
√2 = (a-7b) /3b .....(i)
Now ,from equation (i) ,we get that √2 is rational but we know that √2 is irrational. so actually 7 + 3√2 is irrational not rational. thus our assumption is wrong. The number is irrational.
A. we use the z statistic to solve this problem
z = (x – u) / s
We calculate the value of the sample mean u and standard deviation
s:
u = $30 * 304 = $9120
s = $21 * 304 = $6384
z = (9,600 – 9120) / 6384
z = 0.075
From the normal tables using right tailed test,
P = 0.47
B. At worst 11% means P = 0.11, so the z value at this is
z = -1.23
-1.23 = (x – 9120) / 6384
x = 1267.68
A 30-60-90 triangle is special because of the relationship of its sides. Also <span>It turns out that in a 30-60-90 triangle, you can find the measure of any of the three sides, simply by knowing the measure of at least one side in the triangle.
Hope this helps. :)</span>