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GrogVix [38]
3 years ago
11

Por favor alguien me puede ayudar con esto

Mathematics
2 answers:
Gnoma [55]3 years ago
7 0
No entiendo....................
galina1969 [7]3 years ago
6 0
Lo siento amigo, no comprendo
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How do you Convert 50 meters to per second to km/h ? Btw i need to know how to solve it
erma4kov [3.2K]

50 m/s is going to be 180 km/h or 3 km/s.

50 / 1000 = 0.05

0.05 x 60 = 3 kilometers a minute.

3 x 60 = 180 kilometers an hour.

50 m/s divided by 1 kilometer = 0.05 kilometers a second. You then multiply it by 60 to get it in minutes, and then 60 again to get it in hours. because their are 3600 seconds in an hour. So you could divide 50 meters per second by 1000 meters or 1 kilometer and then multiply it by 3600 seconds to get 180 kilometers an hour.

4 0
3 years ago
Which expression is equivalent to (x-2y-4z)^2
True [87]

Answer:

2xyz

Step-by-step explanation:

5 0
3 years ago
Ben is going on a 380-mile trip. If he drives for 2 hours at an average speed of 50 miles per hour, how many miles will he still
GrogVix [38]

Answer:

19000

Step-by-step explanation:

1 hour = 50 miles

2 hour = 100 miles

50×380 = 19000

7 0
2 years ago
What is the product of (3x - 4y) and (- 2x + 5y - 6)?
guajiro [1.7K]

Answer:

The answer is option c

Step-by-step explanation:

Product means we have to multiply

(3x - 4y) \times ( - 2x + 5y - 6) \\  3x( - 2x + 5y - 6) - 4y( - 2x + 5y - 6) \\  - 6x {}^{2} + 15xy - 18x + 8xy - 20y { }^{2} + 24

You then group like terms

- 6x {}^{2}  + 15xy + 18xy - 20y {}^{2}  + 24 \\ 6x {}^{2} + 23xy - 20y {}^{2} + 24

And there's your answer

6 0
3 years ago
Solve the equation on the interval [0, 2π). <br><br> cos x + 2 cos x sin x = 0
vekshin1
Take a common factor of cos(x)
\cos(x) (1 + 2 \sin(x) ) = 0
then by zero multplication rules
\cos(x)  = 0
x =  \frac{\pi}{2}  \: x =  \frac{3\pi}{2}
and when
1 + 2 \sin(x)  = 0
so
2 \sin(x ) =  - 1
\sin(x)  =  \frac{ - 1}{2}
so
x =   \frac{3\pi}{2}  -  \frac{\pi}{3}
and
x =  \frac{3\pi}{2}  +  \frac{\pi}{3}


6 0
3 years ago
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