-3(-3)2=-27
9*2=18
so this is wrong. the answer would equal 18
Yes all cubes are similar but their measurement is not similar
Simplifying the expression (x - 2y) + (3x + 4y).
Work:
(x - 2y) + (3x + 4y)
Combine like terms.
x + 3x = 4x
-2y + 4y = 2y
Reform the expression.
4x + 2y
Simplified Expression: 4x + 2y.
Answer:
x = 166,152
Step-by-step explanation:
x = 3.491
y = 7.342
x =?
y = 349,439
therefore,
3.491/x = 7.342/349439
1,219,891.549 = 7.34x
divide through 7.34 and make subject
x = 166,152
Answer:
a) 279 b)254
Step-by-step explanation:
Mean = 269 days
standard deviation = 8 days
let n be the pregnancy lenght.
using normal distribution formula
z = (n – mean)/ standard deviation
n = z * standard deviation + mean
Now, z values for the top 12% has to be found using a z table.
The top 12% means 88% of area under the curve. In this case z = 1,176
n = 1,176 * 8 + 269
n = 278.4 = 279
The bottom 3% means 97% of area under the curve. In this case z = -1,882
n = -1,882 * 8 + 269
n = 253.94 = 254
