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Paladinen [302]
3 years ago
11

How to solve x^2-4x-5=0 by using the quadratic formula?

Mathematics
1 answer:
padilas [110]3 years ago
3 0

Answer:

x = 5 or -1, put numbers into the formula and calculate

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2 years ago
The lowest number is 11 the range is 13 and the median is 17 what are the 3 numbers
11Alexandr11 [23.1K]

Answer:

11, 17, and 28.

Step-by-step explanation:

x, y, z\\

Lowest number is x

Median is y

Highest number is z

x=11\\y=17\\\\z-x=17\\z-11=17\\z-11+11=17+11\\z=28\\\\x=11\\y=17\\z=28\\\\11, 17, 28

3 0
3 years ago
Which is the completely factored form of 3x^2-12x-15
Luba_88 [7]

Find the GCF (Greatest Common Factor)

GCF = 3

Factor out the GCF ( Write the GCF first. Then, in parentheses, divide each term by the GCF)

3(3x^2/3 + -12x/3 - 15/3)

Simplify each term in parentheses

3(x^2 - 4x - 5)

Factor x^2 - 4x - 5

<u>3(x - 5)(x + 1)</u>

6 0
3 years ago
PLZ HELP WILL GIVE BRAINLIEST!!!!!!
Travka [436]
We should find the mean number of the tests. 
This would be done like: (23+24+25)/3  = 24

After that, you should find the percentage or fraction like this 24/50
Then use the fraction as an estimate like this:

(24/50) * 3250 = 1560

The correct answer is 1560.
5 0
3 years ago
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