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Oksanka [162]
4 years ago
5

A meteor crater is 4100 feet in diameter. Approximate the distance around the crater. Use 3.14 for π.

Mathematics
1 answer:
ad-work [718]4 years ago
7 0
A crater shape should look like a circle. Then, the distance around the crater would be the area of the circle. To answer this question, you need to know how to calculate circle area. Since the diameter is 4100ft and radius is 1/2 of diameter, then the area should be:

Circle area= 2* 3.14 * radius= 2 *3.14 * 1/2 * 4100ft= 12874ft
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Can you give me same question like this..please
lisabon 2012 [21]

Answer:

Three more than twice a number is equal to four less than the number. find the number.

4 0
3 years ago
Plz help me really really fast this is my last question to work on
Artyom0805 [142]

Answer:

$5

Step-by-step explanation:

25 = 4e + 5

20 = 4e

5 = e

reach eraser costs $5.

6 0
3 years ago
Will someone help me with all of these, I have the answers but I’m trying check them.This is a practice assignment btw.
Ipatiy [6.2K]

We will look at the process of solving literal equations for a particular variable ( x ).

A literal equation is usually categorized by a myraid of constants that are crucial to the process which is being modeled. We solve such equation in terms of a controlling variable ( that we can choose to alter our process ).

For the following literal equations ( x ) will be the subject of variability.

3\cdot(bx\text{ - 2ab ) = }b\cdot(x-7a)\text{ + 3ab}

Whenever we have algebraic expressions we always refer to the rule of ( PEMDAS ).

Step 1: Solve the Parenthesis

We will solve for all the parenthesis in the equation given and write down the result:

3bx\text{ - 6ab = bx - 7ab + 3ab }

Step 2: Highlight and combine the like terms

All like terms are classified on the basis of their constants ( a and b ) and variable ( x ) attached. We will highlight all the like terms and take simplify them on either side of the " = " sign:

\begin{gathered} 3bx\text{ }\text{\textcolor{#FF7968}{- 6ab}}\text{ = bx }\text{\textcolor{#FF7968}{-7ab}}\text{ }\text{\textcolor{#FF7968}{+ 3ab}} \\ 3bx\text{ - bx = 2ab} \end{gathered}

We combined three like terms ( -6ab , -7ab , and 3ab ).

Step 3: Factorize and simplify the equation

Now we will look for any constant that is present in all the terms throughout the equation. We see that constant ( b ) is common in all the terms. Hence, we will factor ( b ) out and cancel it out from each side of the " = " sign as follows:

\begin{gathered} b\cdot(3x\text{ - x ) = b}\cdot(2a) \\ \textcolor{#FF7968}{2x}\text{\textcolor{#FF7968}{ = 2a}} \end{gathered}

Step 4: Solve for the variable ( x )

We are left with a simple expression that relates the constant ( a ) and variable ( x ). We can go ahead and solve for the above:

\begin{gathered} x\text{ = }\frac{2a}{2} \\ \textcolor{#FF7968}{x}\text{\textcolor{#FF7968}{ = a}} \end{gathered}

5 0
1 year ago
Anyone know this problem?
USPshnik [31]
The answer is 2/3 because 21 ÷ 3 = 7, and 7 × 2 = 14. I hope this helps!
5 0
3 years ago
Which equations model exponential growth?
elena-s [515]
P = A(1+r)^x

where P is the population at time x
A is the initial population and r is the growth/decay rate. Growth will be +positive r number added to the 1. Where as decay subtracts r. So any answers that are > than 1 which is answers  A and B.
8 0
3 years ago
Read 2 more answers
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