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Alla [95]
3 years ago
11

If using the method of completing the square to solve the quadratic equation x^2 + 9 x + 7 = 0 , which number would have to be a

dded to "complete the square"?
Mathematics
1 answer:
FinnZ [79.3K]3 years ago
6 0

Answer:

(x+9)^2=53/4

Step-by-step explanation:

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Angle p is an obtuse angle. which could be the measure of angle p
liraira [26]
Anything above 90 degrees
5 0
3 years ago
Xerxes, Murray, Norah, Stav, Zeke, Cam, and Georgia are invited to a dinner party. They arrive in a random order and all arrive
Nikolay [14]

Answer:

0.143

Step-by-step explanation:

From counting principle, we can say that:

There are 7! ways of the 7 people to arrive first. Any one of them can come first. But, what is the probability that Xerxes with arrive first?

We take that Xerxes is the first one to arrive, then from the 7 - 1 = 6 remaining people, they can arrive in 6! ways. So

Probability Xerxes arrives first = 6!/7! = 0.1429

Rounding to 3 decimal places, it will be:

<u>Probability Xerxes arrives first = 0.143</u>

7 0
3 years ago
Mel bought pizza and soda for her End of Summer party. If she spent $12.57 on the sodas and $10.95 for each pizza, how many pizz
sammy [17]

The equation that models the situation is: 89.22 = $10.95p  +  $12.57.

The cost of one pizza is $10.95. The cost of 2 pizzas would be equivalent to the multiplication of $10.95 by 2. Since we are not provided with the information on the total amount of pizza she bought, the total number of pizza bought would be represented with p.

Thus the total cost of p boxes of pizza = $10.95 x p = $10.95p

The total amount spent on sodas is $12.57.

The total amount spent is $89.22.

The equation that models the situation is: 89.22 = $10.95p  +  $12.57.

A similar question was answered here: brainly.com/question/20063434?referrer=searchResults

8 0
3 years ago
Evaluate each expression if a=4, b=6 and c=3<br> 7c+8a-5b
tankabanditka [31]

Answer: 38

Step-by-step explanation:

To solve this problem, you are simply going to plug in the values for the numbers into the equation so it would look like this:

7(3)+8(4)-5(6)

3 0
4 years ago
Read 2 more answers
I need help asap
Sloan [31]
Well I can help you with number 4 for your quiz D) -2 4/9 is rational because exponents and pie signs are known to be irrational but fraction can be simplify.
8 0
3 years ago
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