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pantera1 [17]
3 years ago
14

Michelle is interested in knowing how often girls in her class at school use their cell phones to instant message their friends.

Mathematics
1 answer:
pantera1 [17]3 years ago
3 0

Answer:

the options for the answer are

Step-by-step explanation:

A. Give the survey to the first fifty girls on a list of all the students in her class

B. Post her survey on the Internet and ask only girls to respond

C. Write the name of each girl in her class on a card and then draw 10 cards from the hat

D. Identify which homeroom each girl in her class is in and then choosing a sample from each homeroom based on the number of girl in the homeroom

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tiny-mole [99]

Answer:

103.67 in³

Step-by-step explanation:

given Volume of cone is 1/3 * π * r² * h

here given r = 6/2 = 3 , height = 11 inch

using the formula = 1/3 * π * 3² * 11

                              =103.67 in³ or 33π in³

7 0
3 years ago
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Suppose f(x)=x^2-2 find the graph of f(1/2x)
Scorpion4ik [409]

Answer:

graph g(x)=1/4 x^2 - 2

Step-by-step explanation:

You are to replace x with (1/2x) in the expression x^2-2

So you have (1/2x)^2-2

1/4 x^2-2

Graph some points for g(x)=1/4 x^2-2

The vertex is (0,-2) and the parabola is open up.

I would graph 2 more points besides the vertex

x   |  g(x)                     ordered pairs to graph

-----------                         (-1,-1.75) and (0,-2) and (1,-1.75)

-1        -1.75

0         -2

1         -1.75

3 0
3 years ago
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A person invest $2,940 in an account tgat earns 4.1% annual intrest. Find when the value of the investment reaches 5,000. If nec
serg [7]

Answer:

13.22

Step-by-step explanation:

were solving for t and we know:

a(t)=p(1+(r/n))^nt

5000=a-the total

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1=n-compound (annual)

plug this into a graph :

5000=2940(1+(.041/1))^x

and you get : 13.22

7 0
3 years ago
How do I use successive approximations ?
dimaraw [331]

Answer:

assume an approximate value for the variable that will simplify the equation.

solve for the variable.

use the answer as the second approximate value and solve the equation again.

repeat this process until a constant value for the variable is obtained.

7 0
3 years ago
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I need help please as soon as possible
frez [133]

B is the correct answer for this question

8 0
3 years ago
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