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Svetach [21]
3 years ago
15

on average, a commercial airplane burns about 3.9 × 10³ ml of gasoline per second. there can be as many as 5.1 × 10³ airplanes i

n the air in the united states at any given time.about how many milliliters of gasoline are burned per minute by commercial airplanes in flight in the united states?
Mathematics
1 answer:
kifflom [539]3 years ago
6 0
3.9 x (10 x 3 )= 3.9 x 30= 117
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Which quadratic equation has solutions x=8 and x=−1?
andrezito [222]
There are two ways you can do this

Using the formula


{x}^{2}  - (sum \: of \: roots)x + poduct \: of \: roots = 0

{x}^{2}  - (8+-1)x +  - 1 \times 8 = 0


{x}^{2}  - 7x  - 8 = 0


Working backwards


x = 8 \: or \: x =  - 1
\Rightarrow x-8=0  \: or  \: x+1=0

\Rightarrow (x-8)(x + 1)=0
\Rightarrow  {x}^{2}   + x -8x - 8 = 0
\Rightarrow  {x}^{2}  - 7x - 8 = 0
7 0
3 years ago
Im going to cry can someone please help me i will award brainlist !!!!!!
Aneli [31]

Answer:

c

Step-by-step explanation:

5 0
2 years ago
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CAN SOMEONE ANSWER ASAP PLEASE!!!!! WILL GIVE EXTRA POINTS
sdas [7]
I'm really sorry if I'm wrong but

14*26=364 so he can go 364 miles for every full tank so his first 364 are covered since he starts with a full tank.

Step 2:
838/26*14 = <span>451
</span>
step 3:


He'd only have to stop once

3 0
3 years ago
A recent study found a correlation between gum disease and heart disease. This result indicates that gum disease causes people t
Yuliya22 [10]

Answer:

False

Step-by-step explanation:

Correlation measures the strength of the relation between two variables.

Further, Correlation is said to be positive if increasing/decreasing the one variable, also increases/decreases the values of another variable.

Correlation is said to be negative if increasing/decreasing the one variable, also decreases/increases the values of another variable.

Since we don't know here exists a positive correlation or negative correlation.

So here are two possible conditions:

The person who has Gum disease also has heart disease.

And, the person has Gum disease can never have heart disease.

Thus, the given statement is false.

5 0
3 years ago
9decimals with 3 decimal places when rounded to the nearest hundredth round to 4.56.
suter [353]
? 123456.789 ?????

then round2(123456.789)

=123456.79
6 0
3 years ago
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