3 years ago

What is the area of a square deck, if one side is 10 feet long?

1 answer:

6 0

Since we know the length of one side, and it's a square, we simply multiply 10 by 10 to get 100. The final answer is 100 square feet.

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What is the intermediate step in the form (x + a)? = b as a result of completing the

Mrac [35]

Answer:

(x + 9)² = 36

Step-by-step explanation:

Given

x² + 18x + 57 = 12 ( subtract 57 from both sides )

x² + 18x = - 45

To complete the square

add ( half the coefficient of the x- term)² to both sides

x² + 2(9)x + 81 = - 45 + 81

(x + 9)² = 36

5 0

2 years ago

The spinner for a board game has eight colors the arrow can land on. What are the degrees of freedom for a goodness-of-fit test

Juliette [100K]

Answer: Option 'c' is correct.

Step-by-step explanation:

Since we have given that

Number of colors that the arrow can land on = 8

We need to find the degrees of freedom for a goodness of fit test of the fairness of this spinner.

As we know that degree of freedom is 1 less than the size of sample.

So, Mathematically, it is expressed as below:

So, Degree of freedom would be

$v=n-1\\\\v=8-1\\\\v=7$

Hence, Option 'c' is correct.

7 0

3 years ago

A spinner is split into 4 equal parts labeled 1, 2, 3, and 4.

LiRa [457]

Answer:50%

Step-by-step explanation:

4 0

3 years ago

The value of a car is inversely proportional to its age. if a car is worth $6400 when it is 6 years old, how old will it be wh

Trava [24]

It will be 8 years old when it is worth $4800.

3 0

3 years ago

Find the perimeter and area

blondinia [14]

Answer:

perimeter = 67

Step-by-step explanation:

7 0

3 years ago