Answer:
The answer is -20.6
Step-by-step explanation:
-5x-25=78
-5x+25-25=78+25
-5x=103
-5x/-5=103/-5
x=-20.6
The required relength is half of the length of AC
AC = sqrt(8 - (-2))^2 = 8 + 2 = 10
Therefore, the required length is 5.
Answer:
68% of exam scores lie within one std. dev. of the mean
Step-by-step explanation:
Because the standard deviation is 100, one standard deviation above the mean comes out to 600. Likewise, one std. dev. below the mean comes out to 400. By the Empirical Rule, 68% of exam scores lie within one std. dev. of the mean.
Answer:
45 total washers
Step-by-step explanation:
Looking at the ratio of 4:11:9:6, we know that there are,
4 nails in each tool box
11 screws in each tool box
9 washers in each tool box
6 brackets in each tool.
Given that there are 5 carpenters with identical tool boxes, we can find the total amount of washers by multiplying the amount of washers in each box with how many carpenters there are.
9 * 5 = 45
The answer is C because Which of the following equations is equivalent to 1/2x-2/3y= c I'd just 6 times as much, so 1/2 times 6 equals 3 and 2/3 times 6 is 4
