Answer:
W = 4.95
Step-by-step explanation:
You want to start by writing down what you know, and forming a system of equations.
L= length W= width
2L+2W=14.7
L= 2.4
On the left side of the equation, you're adding all your side lengths, and on the right, is the total perimeter. (Also could be written L+L+W+W = 14.7)
You would then substitute L from the bottom equation into the top equation to get:
2(2.4) +2W=14.7
Solving:
4.8+2w=14.7
W= 4.95
To check your answer simply add all the sides together and make sure it equals your perimeter. You can also plug W and L back into the original equation.
Solve for x:
x + 2 = −4
x
+
2
=
−
4
x = −2
x = −2
x = −6
x = −6
x = 6
x = 6
x = 2
Answer:
68%
Step-by-step explanation:
<em><u>68-95-99.7% Rule:</u></em>
<em><u /></em>
This is the empirical rule which is used to remember the percentage of values that is within a band of the mean. We say:
- 68% of the data fall within 1 standard deviation of the mean
- 95% of the data fall within 2 standard deviation of the mean, and
- 99.7% of data falls within 3 standard deviations of the mean
Clearly, from the empirical rule, we see that about 68% of the area is between z = -1 and z = 1 (or within 1 standard deviation of the mean)
Answer:
The answer to your question is: Option B is correct
Step-by-step explanation:
Which expression is equivalent to the square root of 80?
Find the prime factors of 80
80 = 2⁴5 then 
= 
Option A which is 4 square root of 2 times the square root of 5 This option is incorrect
Option B which is square root of 2^4 times the square root of 5 This option is correct
Option C which is the square root of 2 times the square root of 2 times the square root of 5 This option is incorrect
Option D which is the square root of 2^2 times the square root of 2^2 times the square root of 5^2 This option is incorrect
