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True [87]
2 years ago
13

» The diameter of a circle is 38 kilometers. What is the circle's area? Use 3.14 for n.

Mathematics
2 answers:
german2 years ago
7 0

Answer:

Use the formula pi×d : 3.14×38 km

So, it's 119.32

(that's what i know)

anyanavicka [17]2 years ago
4 0

The formula for area of a circle is :

Area = pi x radius^2


Radius is half the diameter.

Radius = 38/2 = 19 kilometers


Area = 3.14 x 19^2

Area = 1,133.54 square kilometers

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If Meg walks 1/3 a mile in 1/9 of an hour, how many miles will she walk in one hour?
Anni [7]

Answer:

3 miles

Step-by-step explanation:

1/3 mile divided by 1/9 hour will give you miles per hour.

1/3 / 1/9 = 9/3 = 3 miles per hour

7 0
3 years ago
Kong took 15\%, percent fewer seconds than Nolan took to complete his multiplication timed test. Kong took 85 seconds. How many
andreev551 [17]

Answer:

Nolan took 97.75 seconds. you may need to round it to 98.

Step-by-step explanation:

multiply 15% by 85 which equals 12.75 then add to 85

6 0
3 years ago
If you are given the graph of h(x) = log. x, how could you graph m(x) = log2(x+3)?
Agata [3.3K]

Answer:

Option (d).

Step-by-step explanation:

Note: The base of log is missing in h(x).

Consider the given functions are

h(x)=\log_2x

m(x)=\log_2(x+3)

The function m(x) can be written as

m(x)=h(x+3)           ...(1)

The translation is defined as

m(x)=h(x+a)+b           .... (2)

Where, a is horizontal shift and b is vertical shift.

If a>0, then the graph shifts a units left and if a<0, then the graph shifts a units right.

If b>0, then the graph shifts b units up and if b<0, then the graph shifts b units down.

On comparing (1) and (2), we get

a=3,b=0

Therefore, we have to translate each point of the graph of h(x) 3 units left to get the graph of m(x).

Hence, option (d) is correct.

3 0
3 years ago
30 POINTS! I NEED THIS TO BE DONE IN LESS THEN AN HOUR IF YOU CAN HELP PLEASE HELP ME ! then after these five questions i have a
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4 0
3 years ago
The price have changed from $120 to $75. By how many
Kitty [74]

Answer:

35.7%

Step-by-step explanation:

The change is 45 dollars. (120-75)

The percent of change is the dollars divided by the original price.

45/120=0.357

Or 35.7%

3 0
3 years ago
Read 2 more answers
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