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Vilka [71]
3 years ago
6

Can someone please help me solve this quadratic equation? x2+9x+9=0

Mathematics
1 answer:
lesya692 [45]3 years ago
5 0
X≈1.4589803,-7.85410196
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Which if the following is the equation of a line that passes through the points (2,5) and (4,3)
Taya2010 [7]
Hi there!

First, let's find the slope of the two points using the slope formula (y2 - y1 / x2 - x1).

S = 4 - 2 / 3 - 5
S = 2 / -2
S = -1

Next, we'll plug in the slope and a point into point-slope form (y - y1 = s(x - x1)) in order to find an equation. I will show the work using both points, which will result in two different equations.

(2,5)
y - 5 = -1(x - 2)
y - 5 = -x + 2
y = -x + 7

(4,3)
y - 3 = -1(x - 4)
y - 3 = -x + 4
y = -x + 7

The two equations came out the same! Which is completely okay, and happens sometimes. 

Hope this helps!! :)
If there's anything else that you're needing help with, don't be afraid to reach out!


3 0
4 years ago
In the given figure, find the value of x.​
Korolek [52]

Answer:

x =144

Step-by-step explanation:

A straight line is 180 degrees

x+ x/4 = 180

Change 1 to 4/4 to get a common denominator

4/4x +x/4 = 180

Combine like terms

5/4x = 180

Multiply by 4/5 on each side to isolate x

4/5 * 5/4 =180 * 4/5

x =144

7 0
3 years ago
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77julia77 [94]

Answer:That is incorrect. 12.8 is greater than 12.68 because .8 is greater than .68

Step-by-step explanation: Since “68” has been placed after the decimal, it is actually “.68” which is less than 1. From here, you have to figure out if .8 or .68 is closer to the number 1 and since .8 is closer, point 12.8 is greater than 12.68

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3 years ago
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Please help me quickly
Sedbober [7]

Answer:

ive had this same question its b

Step-by-step explanation:

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3 years ago
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a funiture shop had beds on sale. the sale started on 6 july and finished on 25 july how many days were the beds on sale
Leviafan [203]
Answer: 19 days.
Solution: 25 - 6 = 19
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3 years ago
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