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deff fn [24]
3 years ago
14

The National Honor Society at Central High School plans to sample a random group

Mathematics
2 answers:
34kurt3 years ago
5 0

Answer:

D

Step-by-step explanation:

Increasing sample size reduces margin of error

Nat2105 [25]3 years ago
4 0

Answer:A

Step-by-step explanation:

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How many teaspoons are in half an ounce?
Ganezh [65]

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3

Step-by-step explanation:

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2 years ago
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6 0
3 years ago
Help with question 21!
Darya [45]
W=-3m+205
m=number of months
205= weight at first to start the diet
w=weight

a)
m=0
so; 
w=-3(0)+205=205

Answer: Chris weight at the start of the diet 205 pounds

b)
W=-3m+205

The weight lost each month is the number beside "m", in this case is -3 pounds

Answer: Chris lose 3 pounds per month

c)
w=205-45=160
so
160=-3m+205
-3m+205=160
-3m=160-205
-3m=-45
m=-45/-3=15

Answer: 15 months.
4 0
3 years ago
I built a storage shed in the shape of a rectangular box on a square base. The material that I used for the base cost $4 per squ
kumpel [21]

Answer:

side of 6.124 ft and height of 3.674 ft

Step-by-step explanation:

Let's s be the side of the square base and h be the height of the rectangular box.

The base and the roof would have an area of s^2 and cost of

4s^2 + 2s^2 = 6s^2

The sides would have an area of 4sh and cost of 4sh*2.5 = 10sh

So the total cost for the material is

6s^2 + 10sh = 450

10sh = 450 - 6s^2

h = 45/s - 0.6s

The volume of the shed has the following formula

V = s^2h = s^2(45/s - 0.6s) = 45s - 0.6s^3

To find the maximum value for V, we can take its first derivative, and set it to 0

\frac{dV}{ds} = 45 - 1.2s^2 = 0

1.2s^2 = 45

s^2 = 45 / 1.2 = 37.5

s = \sqrt{37.5} = 6.124 ft

h = 45/s - 0.6s = 3.674 ft

4 0
3 years ago
Need help with this its pre algabra
Karolina [17]
Do you mind writing out the equation/question deal-o it might help us all some. 
7 0
3 years ago
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