We are asked to find unknown or the missing number to complete the polynomial given in the problem which is x² + ?x -49. First, let us equate the number to be equal to zero such as it would become x² + ?x - 49 = 0. Next, we need to find the factors such that it would produce a difference of squares and these two factors are a = +7 and b = -7. Hence, the complete solution is shown below:
(x + 7) (x-7) = 0
perform distribution and multiplication of terms such as shown below:
x² + 7x - 7x - 49 = 0
Combine the same term such as we can either add or subtract +7x to -7x and the result will be equal to 0x.
x² + 0x - 49 = 0
Therefore, the missing number is 0. The answer is 0 which will result to x² +0x - 49.
<u>What do we know so far</u>:
*we converted the number of laps into improper fractions
<u>We want to know the number of laps in an hour</u>
⇒ so we must find the rate which ⇒ lap/hour
<u>So William can run</u> ⇒ <u>10 laps in one hour</u>
Hope that helps!
Rounded would be $13.89.
0.07 * 12.98 = 0.9086 and add that to 12.89 :)
Answer:
$46.25
Step-by-step explanation:
9.25 times 5 = 46.25
The length of the shelf is 10 feet while its height is 10 feet.
<h3>Equation</h3>
Equation is an expression used to show the relationship between the sides and angles of a right angled triangle.
Let x represent the shelf length and y represent the shelf height.
The height of the bookcase is 2 feet longer than the length of a shelf. hence:
Also, 22 feet of lumber is available:
From equation 1 and 2:
y = 12, x = 10
The length of the shelf is 10 feet while its height is 10 feet.
Find out more on equation at: brainly.com/question/13763238
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