Square root of 21 is
<span>4.58257569496
</span>
I rounded it to 4.58
(-2,5)(9,-6)
slope(m) = (-6-5) / (9 - (-2) = -11/11 = -1
y = mx + b
slope(m) = -1
(-2,5)...x = -2 and y = 5
now we sub and solve for b, the y int
5 = -1(-2) + b
5 = 2 + b
5 - 2 = b
3 = b
so ur equation in slope intercept form is : y = -x + 3
Answer:

Step-by-step explanation:
Let the variable be taken as 'r'.
Then, by raising it to the 7th power, we'll get the result as 

Now, by doubling the result....


Answer:
Type II error occurred
Step-by-step explanation:
It is given that a new shampoo is being tested to determine whether the hair grows faster by using this shampoo.
It is known that hair grow at 0.5 inches per month at average.
The hypothesis are,
Null hypothesis, 
Alternate hypothesis, 
But it is known that :
Type
error occurs when rejecting the null hypothesis when the null hypothesis is true actually.
Type
error occurs
when the null hypothesis is actually false.
Now here since the null hypothesis is not been rejected, type
error had occurred.
Answer:
46.875%
Step-by-step explanation:
increase mass = 4.7 - 3.2 = 1.5kg
percentage increase = 1.5/3.2 = 46.875%