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Iteru [2.4K]
3 years ago
10

Solve for x: 2x^2+4x=-6

Mathematics
1 answer:
Delvig [45]3 years ago
7 0

Answer:

-1 -+i/5/2

Step-by-step explanation:

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Help meeeee!!!!!!!!!!! Also I have more of these sooo
Daniel [21]

x would be 6 because you double 5 to get ten, so you double 3 to get 6

8 0
3 years ago
Whats is the answer to 6×4?
Kazeer [188]
6x4=24

Multiplication is just repeating addition! For example, you can use repetitive (repeating) addition to solve 6x4.

6+6+6+6=24

I added 6 4 times to get to 24. I added it four times because you are multiplying 6 by 4! I am adding 6 (the first number) 4 times (the second number)!

Other examples:

1 x 7=7 because 1+1+1+1+1+1+1=7

2x2=4 because 2+2=4

I hope this helped! :)
6 0
3 years ago
HEEELPP ASAP
Juli2301 [7.4K]
B 3 mindndndbxbjjjhgg
8 0
2 years ago
Read 2 more answers
Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest speed measured was 76.676.6
faltersainse [42]

Answer:

Step-by-step explanation:

Researchers measured the data speeds for a particular smartphone carrier at 50 airports.

The highest speed measured was 76.6 Mbps.

n= 50

X[bar]= 17.95

S= 23.39

a. What is the difference between​ the carrier's highest data speed and the mean of all 50 data​ speeds?

If the highest speed is 76.6 and the sample mean is 17.95, the difference is 76.6-17.95= 58.65 Mbps

b. How many standard deviations is that​ [the difference found in part​ (a)]?

To know how many standard deviations is the max value apart from the sample mean, you have to divide the difference between those two values by the standard deviation

Dif/S= 58.65/23.39= 2.507 ≅ 2.51 Standard deviations

c. Convert the​ carrier's highest data speed to a z score.

The value is X= 76.6

Using the formula Z= (X - μ)/ δ= (76.6 - 17.95)/ 23.39= 2.51

d. If we consider data speeds that convert to z scores between minus−2 and 2 to be neither significantly low nor significantly​ high, is the​ carrier's highest data speed​ significant?

The Z value corresponding to the highest data speed is 2.51, considerin that is greater than 2 you can assume that it is significant.

I hope it helps!

3 0
3 years ago
2 ( x-4 ) = 5/6 ( x+6 ) -6
givi [52]
Hopes this helps:

Answer: x = 6
3 0
3 years ago
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