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wel
3 years ago
15

If the quadratic equation 2 + 2 + 5 = 0 is

Mathematics
2 answers:
Flura [38]3 years ago
5 0
The answers should be 10
iogann1982 [59]3 years ago
3 0
There should be no solution!!!
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In order to clear out room for new merchandise, James decided to mark down some of the items for sale in his electronics store.
skelet666 [1.2K]
Lets day the original price of the dvd player was $100,
36% marked down means you pay $64x
64x = $41.60
100x = 100/54 x 41.60 = 4160/64 = #65.00 = original cost
similarly, stereo tuners = 100/78 x 69.42 = 6942/78 = $89 original cost
DVD = 65- 41.60 = $ 23. 40 less 
Stereo = 89- 69.42 = $ 19.58 less
Diffrence is $ 3.82
so your answer is the dvd player price was reduced by $3.82 more than the stereo tuner.
8 0
3 years ago
Read 2 more answers
What is 9 1/6 - 2 3/4?
kenny6666 [7]

Answer:

6 5/16

Step-by-step explanation:

Hope this helped :)

3 0
3 years ago
A student formed a pattern in which each term is represented by a sum. The first four terms of the pattern are shown below
Rainbow [258]
N^2 should be the correct answer. Based on those numbers, it appears that the sum can be found by squaring the term n
5 0
3 years ago
Please help me with this
Alisiya [41]
Woahhhh lol one sec
8 0
3 years ago
1. what would the effect have been on the calculated formula weight ([9] above) of your unknown as compared to the true formula
kramer

If the solution is blue-green, this indicates that some copper is still present in the solution and that not all of it has precipitated. Expect it to be too low because you will have less mass.

With very few exceptions, all copper(I) (cuprous) compounds are diamagnetic and colorless. Cu2O, Cu2Cl2, and cuprous sulfide are a few of the significant commercial compounds of copper(I) (Cu2S).

The molar mass of the element copper is determined by looking at its average atomic mass, which is 63.55 AMU on the periodic table. Since it is also our molar mass, we will now put it in a different unit: grams over moles (63.55 gmol). That is copper's molar mass.

If the solution is blue-green, there is still copper in the solution and not all of it has precipitated. Because you will have less bulk, anticipate it to be too low.

To know more about copper, refer to this link:

brainly.com/question/1543891

#SPJ4

3 0
11 months ago
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