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sp2606 [1]
3 years ago
8

When elenas car moves forward such that each tire makes one full rotation the car has traveled 72 inches.How many full rotations

will th tires need to make for elenas car to travel 10 yards?
Mathematics
1 answer:
CaHeK987 [17]3 years ago
3 0
Sup, um 5 full rotations
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Simplify the expression.​ (Do not evaluate the exponents on coefficients in the​ answer.)
ycow [4]

Answer:

(-6)^5p^5

Step-by-step explanation:

To evaluate or simplify expressions with exponents, we use exponent rules.  

1. An exponent is only a short cut for multiplication. It simplifies how we write the expression.

2. When we multiply terms with the same bases, we add exponents.

3. When we divide terms with the same bases, we subtract exponents.

4. When we have a base to the exponent of 0, it is 1.

5. A negative exponent creates a fraction.

6. When we raise an exponent to an exponent, we multiply exponents.

7. When we have exponents with parenthesis, we apply it to everything in the parenthesis.

We will use these rules 2 and 7 to simplify.  First apply the 4 exponent to both -6 and p. Then add the exponent of the base -6 and p on the outside of the parenthesis.

(-6p)^4(-6p)\\(-6)^4p^4*-6*p\\(-6)^5p^5

8 0
4 years ago
The length of a rectangle is twice its width the perimiter is 60 ft find its area
Masja [62]

Hello,

let's assume a=the length and b the width.

\left\{\begin{array}{ccc}a&=&2*b\\2(a+b)&=&60\\\end{array}\right.\\\\\\\left\{\begin{array}{ccc}a&=&2*b\\a+b&=&30\\\end{array}\right.\\\\\\\left\{\begin{array}{ccc}a&=&2*b\\3b&=&30\\\end{array}\right.\\\\\\\left\{\begin{array}{ccc}b&=&10\\a&=&20\\\end{array}\right.\\\\\\Area=10*20=200\ (ft^2)\\

4 0
3 years ago
What is the simplified form for the following expression <br><br> -(3y-9z)
Sonja [21]

The answer is: -3y+9z

This is because you simply switch the sign for every number in the parentheses.

Hope this helps!

5 0
4 years ago
[3 (×-4)-7] + [5 (x-1)+5]
pychu [463]
A. 8x-19
i believe i understood what was being asked


3 0
4 years ago
At a party there are 30 students over the age of 21 and 15 under the age of 21. You select a representative sample of 5to interv
Feliz [49]

Answer:

Stratified sampling

Step-by-step explanation:

Given

30 \to 21\ and\ above

15 \to Under\ 21

Required

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From the question, we understand that, the sample are divided into two categories. This means that each person in each person do not have the same probability of being selected.

<em>Such method is a stratified sampling</em>

7 0
3 years ago
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