$\bf ~~~~~~~~~~~~\textit{distance between 2 points} \\\\ A(\stackrel{x_1}{0}~,~\stackrel{y_1}{-8})\qquad B(\stackrel{x_2}{4}~,~\stackrel{y_2}{-5})\qquad \qquad d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2} \\\\\\ AB=\sqrt{[4-0]^2+[-5-(-8)]^2}\implies AB=\sqrt{(4-0)^2+(-5+8)^2} \\\\\\ AB=\sqrt{4^2+3^2}\implies AB=\sqrt{25}\implies AB=5$

6 0

3 years ago

A waiter at a restaurant automatically earns a certain percent tip on each bill. On a $45 dinner, the waiter makes $9 in tips. W

Oduvanchick [21]

Answer:

$45 dinner = $9

$1 dinner = 45/9= 5

$60 dinner = 60/5=12

Hence he got $12 for a $60 dinner

3 0

3 years ago

A sample with which of these variances has a standard deviation that is greater than the variance?

White raven [17]

Since the standard deviation is the square root of variance. The only times where the standard deviation is greater than the variance is when the variance is between the values 0 and 1 exclusively. For example, the square root of 0.25 is 0.5.

4 0

3 years ago

A delivery truck weighs 5.5 tons before it is loaded with packages. Once the delivery truck is full of x packages it weighs 6.1

KIM [24]

Answer:

80 packages

Step-by-step explanation:

0.0075*80= 0.6 5.5 + 0.6= 6.1

4 0

2 years ago