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Licemer1 [7]
3 years ago
8

What is the value of the expression -8×3.4 ?

Mathematics
1 answer:
Ugo [173]3 years ago
5 0

Answer:

-27.2

Step-by-step explanation:

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I NEED HELP PLEASE, THANKS! :)
Elena L [17]

Answer:

First option is the right choice.

Step-by-step explanation:

\frac{1}{\cos \left(x\right)+1}+\frac{1}{\cos \left(x\right)-1}\\\\\frac{\cos \left(x\right)-1}{\left(\cos \left(x\right)+1\right)\left(\cos \left(x\right)-1\right)}+\frac{\cos \left(x\right)+1}{\left(\cos \left(x\right)+1\right)\left(\cos \left(x\right)-1\right)}\\\\=\frac{\cos \left(x\right)-1+\cos \left(x\right)+1}{\left(\cos \left(x\right)+1\right)\left(\cos \left(x\right)-1\right)}\\\\=\frac{2cos\left(x\right)}{cos^2\left(x\right)-1}\\\\=\frac{2cos\left(x\right)}{sin^2\left(x\right)}

=2\cdot \frac{cos\left(x\right)}{sin\left(x\right)}\cdot \frac{1}{sin\left(x\right)}\\\\=-2cot(x)csc(x)

Best Regards!

7 0
3 years ago
This goes out to the last post I made
Nitella [24]

Answer:

I-

Step-by-step explanation:

Well, those are certainly... interesting names?

8 0
2 years ago
Read 2 more answers
The car consumes 6 liters per 100 km. How many kilometers can you drive with this car if the tank has 42 liters?
DaniilM [7]

Answer:

If 100km enables consumption of 6lts

what about 42lts

42/6 multiply by 100km

42/6*100= 700km

The car will consume 42lts in 700 km.

Thank you.

Step-by-step explanation:

5 0
3 years ago
Steven wants to equally share his pizza with his three sisters what fraction of the pizza does he in each sister receive
lakkis [162]
1 (Steven) + 3 sisters = 4
They each recieve, 1/4,2/8 or 2 slices of the pizza
6 0
3 years ago
PLEASE ANSWER THIS
saveliy_v [14]
B) If the line is parallel, that means the slope is the same.
    The slope for the original line is \frac{-1-0}{6-2} = \frac{-1}{4}.
    The second form of coral line would be y = -1/4x + (any number). You could          use y = -1/4x + 3.

c) Solve 12x = 24 + 3y for y.
    3y = 12x - 24
    y = 4x - 8
    Perpendicular lines have negative reciprocal slopes... the negative reciprocal      for -1/4 is 4. So yes, the third coral structure is perpendicular to the first coral.
4 0
3 years ago
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