Answer:
79.5%,
Step-by-step explanation:
each big square has 100 little squares inside, meaning there are 200 total between the two.
in total, 159 little squares are shaded.
if you divide, 159÷200= .795.
move the decimal to the right 2 spaces to get the answer of 79.5%
Hope this helps :)
Answer:
The correct option is a. 65 to 89.
Step-by-step explanation:
According to the Empirical Rule in a normal distribution with mean µ and standard-deviation σ, nearly all the data will fall within 3 standard deviations of the mean. The empirical rule can be broken into three parts:
• 68% data falls within 1 standard deviation of the mean. That is P (µ-σ≤X≤ µ+σ) = 0.68.
• 95% data falls within 2 standard deviations of the mean. That is P (µ-2σ≤X≤ µ+2σ) = 0.95.
• 99.7% data falls within 3 standard deviations of the mean. That is P (µ-3σ≤X≤ µ+3σ) = 0.997.
The information provided is:
Use the Empirical rule to compute the middle 95% of the distribution as follows:
Thus, the correct option is a. 65 to 89.
Answer:
A) Rational
Step-by-step explanation:
Answer:
74.67 cubic inches
Step-by-step explanation:
<u>We can use this formula to find the volume:</u>
1/3ah
A means area of the base
h means the height
<u>Find the area of the base:</u>
A = 1/2bh
1/2(4)(7) = 14
<u>Now we can find the volume:</u>
1/3(14)(16)
16 * 14 = 224
224/3 = 74.67
Therefore, the volume would be 74.67 cubic inches.
Answer:
(4,9)
Step-by-step explanation:
To solve this, you can use substitution or elimination. In this case I would use substitution. To do this, you have to isolate a variable. x is already isolated so we can skip this step. plug x into 5x-7y=-43. This will make the equation 5(2y-14)-7y=-43. Simplify this to get 10y-70-7y=-43. Simplify this to get 3y-70=-43. Add 70 in both sides to isolate y. This will make the equation 3y=27. Divide both sides by 3 to make y equal to 1. This will make the equation y=9. Now you know that y=9. Plug 9 into any equation. x=2(9)-14. Simplify this to get x=18-14. x=4. Now put the numbers as an ordered pair which is (x,y). We know that x=4 and y=9 so it is (4,9).
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