Answer:
10
Step-by-step explanation:
Answer:
8a=32
Step by Step
Since David is 8x older than Nicole you could write Nicole as the age of a, so then David would be 8a. You are given David is 32 years old so you set 8a equal to 32.
Answer is 4
Nicole is 4 years old
8a=32
divide both sides by 8
Answer is 4
Solution -
A student who was skeptical about this value decided to conduct a survey by randomly sampling 36 students. On average, the sampled students slept 6.6 hours per night.
The sample mean is the average of the 36 sampled students, which is 6.6 hours. So 6.6 represents the <u><em>sample mean.</em></u>
College newspaper stated that college students get an average of 7 hrs of sleep each night.
The claimed population mean is the stated average from the newspaper article, which is 7 hrs. So 7 represents the <u><em>claimed population mean.</em></u>
Answer:
Step-by-step explanation:
The area of a circular sector with a central angle θ and radius r is given by:
<em>Note</em>: The angle must be in radians.
We need to find both the radius and the angle in radians.
Diameter = 9.6 cm
Radius r=Diameter/2=4.8 cm
Angle in radians= Angle in degrees*π / 180
θ = 140*π / 180 = 2.4435 rad
Now we calculate the area:
Hi :)
the distance of (P,Q) is (5,25) and the midpoint of segment PQ is (-1/2, -17.5).
hope this helps.
