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weqwewe [10]
3 years ago
8

Find the circumference and the area of a circle with radius 9 .

Mathematics
1 answer:
Eduardwww [97]3 years ago
6 0
C=2(pi)r use this equation with 9 in place of r
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kozerog [31]
A is the answer. Hope this helps!
3 0
3 years ago
Read 2 more answers
"Suppose the leftmost digits of 2 numbers are 8 and 3. Can you tell which number is greater? Explain."
Mariulka [41]
No, without further information you can't tell which number is greater. This is because there could be any amount of other digits to the right, which changes the value of the leftmost digit depending on the number it is a part of. Hope this helps! :)
3 0
3 years ago
An airplane is flying from New York city to Los Angeles.The distance it travels in Miles, D, is related to the time in seconds,
deff fn [24]

We have been given an equation d=0.15t that represents the distance an airplane travels in Miles (d) is related to the time in seconds (t).

A. Upon substituting t=1 in our equation we will get,

d=0.15\times 1

d=0.15

We can see that our plane is travelling at rate of 0.15 miles per second.

\text{Speed of plane }=0.15\frac{\text{miles}}{\text{second}}

Therefore, plane is flying at the rate of 0.15 miles per second.

B. To find distance traveled by airplane in 30 seconds we will substitute t=30 in our given equation.

d=0.15\times 30

d=4.5  

Therefore, plane will travel 4.5 miles in 30 seconds.

C. To find time it will take to travel 12.75 miles we will substitute d=12.75 in our given equation.

d=0.15\times t

12.75=0.15\times t

t=\frac{12.75}{0.15}=85

Therefore, plane will take 85 seconds to travel 12.75 miles.

6 0
3 years ago
Mrs. McAlister wrote the equation 10 t minus 4 t + 3 t = 8 on the board and asked students to write an equivalent equation. The
Lera25 [3.4K]

Answer:

t = 8/9

Step-by-step explanation:

There are many possible solutions that could be expressed as equivalent to the equation 10t - 4t + 3t = 8.  With that being said, here is a simplified form, solved for t.

10t - 4t + 3t = 8

6t + 3t = 8

9t = 8

t = 8/9

Each of these form's is an equivalent equation to the one written by Mrs. McAlister.

If you can provide the table of student answers, we could answer which students were correct or wrong.  Without the table, we can only guess.

Cheers.

3 0
3 years ago
I need help in the answer it’s math
slega [8]

E

Step-by-step explanation:

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7 0
3 years ago
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