Slope is the change in the y value over the change in the x value. The y value goes from 4 to -3. The change would be -7. X goes from 0 to 2, so the x change is 2. The slope is then (-7/2), or answer c
Answer:
a hot water tank was full of hot water before eddy used 15 gallons to wash clothes now there is only 80% of the water. how much water, in gallons, does the hot water tank hold?
Order what there is nothing to order sorry
Answer:
Measure of arc PQR is 190°
Step-by-step explanation:
First have a sketch of the quadrilateral PQRS inside a circle
You should notice that the intercepted angle is ∠PSR
You should remember that the intercepted arc PQR is twice the intercepted angle ∠PSR
Find the intercepted angle ∠PSR
Remember that in a quadrilateral opposite angles add up to 180°
Hence;
∠PQR+∠PSR=180°
85 + ∠PSR=180°
∠PSR=180°-85°=95°
Find arc PQR
Arc PQR =2×∠PSR
Arc PQR=2×95°
=190°
Answer:
47.75 %
Step-by-step explanation:
It is a very well known issue that in Standard Normal Distribution porcentages of all values fall according to:
μ + σ will contain a 68.3 %
μ + 2σ will contain a 95.5 %
μ + 3σ will contain a 99.7 %
However it is extremely importan to understand that the quantities above mentioned are distributed simmetrically at both sides of the mean, that is, the intervals are:
[ μ - 0,5σ ; μ + 0,5σ ]
[ μ - 1σ ; μ + 1σ ]
[ μ - 1.5σ ; μ + 1.5σ ]
So we have to take that fact into account when applying the empirical rule. Then
With mean μ = 47 and σ = 10 is equal to say
values between 47 and 57 ( μ + σ ) we are talking about the second interval, but just half of it.
Then the approximate porcentage of light-bulb replacement requests is
95.5 /2 = 47.75 %
