Answer:
87.08% percentage of families spend more than $4000 annually on food and drink
Step-by-step explanation:
Given -
average annual expenditure on food and drink for all families is $5700
Mean = 5700
standard deviation = 1500
Let X be the no of families spend annually on food and drink
percentage of families spend more than $4000 annually on food and drink =
=
= Using
= 1 -
= 1 - .1292
= .8708
= 87.08%
Answer:
see explanation
Step-by-step explanation:
Given
x + ≤ - 3 or x - 3 > - 2
Solve the left and right inequalities separately, that is
x + ≤ - 3 ( isolate x by subtracting
from both sides )
x ≤ - 3 - , that is
x ≤ - -
, thus
x ≤ -
OR
x - 3 > - 2 ( isolate x by adding 3 to both sides )
x > 1
Solution is
x ≤ - or x > 1
The answer you are looking for is B. 70.69
Answer:
The correct option is 1.
Step-by-step explanation:
It is given that the Brian, Kelsey, and Geoff each have a remote-controlled car. They simultaneously started their cars and drove them in a straight line away from a motion sensor.
It means they are travelling at a constant rate.
Slope formula:
From the given table it is clear that the of Brian's car from the sensor is 34 at 1 sec and 38 at 3 sec. The rate of change is
It means the Brian's car traveled at the rate of 2 cm per sec.
From the given table it is clear that the of Brian's car from the sensor is 27 at 1 sec and 31 at 3 sec. The rate of change is
It means the Kelsey's car traveled at the rate of 2 cm per sec.
From the given table it is clear that the of Brian's car from the sensor is 27 at 1 sec and 33 at 3 sec. The rate of change is
It means the Geoff's car traveled at the rate of 3 cm per sec.
Since Brian's and Geoff's car traveled at the same rate, therefore option 1 is correct.