Answer:
h = 7 1/2
Step-by-step explanation:
2/5 h = 3
Multiply each side by 5/2 to isolate h
5/2 * 2/5 h = 5/2 *3
h = 15/2
h = 7 1/2
Answer:
42 people
Step-by-step explanation:
If the girls to boys 2:4, and there are 14 that means it is times 7. 4 times 7 = 28.
14 + 28 is 42.
Answer:
It's the first choice y = (-5/2)x - 1.
Step-by-step explanation:
First find the slope of the line 5x + 2y = 12 by converting to slope-intercept form.
5x + 2y = 12
2y = -5x + 12
y = (-5/2)x + 6 so the slope is (-5/2).
The line we require had also a slope of -5/2 because it is parallel to the first line and it also passes through the point (-2, 4). So:
y - 4 = (-5/2)(x - -2) (the point-slope form)
y - 4 = (-5/2)(x + 2)
y = (-5/2)x - 5 + 4
y = (-5/2)x - 1 (answer)
Answer:
1540 cm³
Step-by-step explanation:
V= blh= 14 cm * 22 cm * 5 cm = 1540 cm³
Answer:
Step-by-step explanation:
a) 
b) Sample mean is the average of sample
c) std deviation of the sample
d) std dev/sq rt n
e) (sample mean - mu)/std error
f) p value = prob with test statistic
g) If p < alpha, reject H0.
h) If rejected, there is evidence that significant difference between population mean and sample mean.
