Answer:
(7, 3)
Step-by-step explanation:
(2+5, 6-3) = (7, 3)
Answer:
Its statistically significant, that Mean monthly apartment rent in town east < $ 750
Step-by-step explanation:
Null Hypothesis [H0] : Mean monthly apartment rent in town east = 750
Alternate Hypothesis [H1]: Mean monthly apartment rent in town east < 750
t = (x' - u) / (s / √n)
x' = sample mean = 737
u = population assumed mean = 750
s = standard deviation = 23
n = no. of units in sample
t = (737 - 750) / (23 / √18) = -13 / 5.4212
= -2.39
t tabulated critical value : for one sided 0.05 significance level, at 17 degrees of freedom = -1.740
t calculated value, -2.39 < t tabulated critical value, - 1.740
We reject the null hypothesis, & state that its statistically significant, that Mean monthly apartment rent in town east < 750
Since you asked how to solve this, I will put the answer at the bottom.
You might not think the same way as I but I think in steps.
<h3>(1) Calculate how many times the bacteria divide in eleven hours</h3>
The bacteria divide every 20 minutes, and will therefore divide three times every hour, 60/20 = 3.
If the bacteria grow for eleven hours, each bacterium will divide 3 times per hour × 11 hours = 33 times.
<h3>(2) Add the orginial size of bacteria into the equation</h3>
(This part is edited)
(orginial size)*2^number of divisions
10*
=85899345920
Answer:
The area of the large rectangle can be represented in two ways. Either the sum of each of the areas of the individual smaller rectangles, which is what the first equation represents, as its the base multiplied by the height (a) of each rectangle.
The second equation is a simplified version of the first one, and can be explained in three ways:
Each of the terms in the earlier equation had a common factor of a, which could be taken outside the parentheses.
or
Since the height is the same for each of the smaller rectangles, you can just multiply the height times the sum of the three smaller rectangle's widths
or
The width of the large rectangle is just the sum of each of the smaller widths, so the sum of those multiplied by a will give the area of the large rectangle.
Hope this helps!
Answer:
Option A. 8x² - 25x + 7.
Step-by-step explanation:
The given polynomials are
A = 3x -4
B = x + 7
C = x² + 2
Now we have to find the simplest form of A² - (B + C)
A² = (3x - 4)² = 9x² + 16 -24 x
B + C = x + 7 + x² + 2 = x² + x + 9
Now A² - (B + C) = 9x² + 16 -24x -(x² + x + 9)
= 9x² -24x + 16 - x²- x - 9
= 8x² -25x + 7
Therefore Option A. 8x² - 25x + 7 is the answer.