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mars1129 [50]
3 years ago
10

A train of length 180 m approaches a tunnel of length 620 m.

Mathematics
1 answer:
igor_vitrenko [27]3 years ago
7 0
After coming out of the tunnel it has to travel it's own length to pass through the tunnel completely. So the train of length 180 metres takes 0.889 seconds to pass through a tunnel of length 680 metres completely.
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Boris Heban is single and pays into an HMO. The total cost is $8,190 annually, and the employer pays 90 percent of the total cos
adell [148]
So Boris has to pay:
10% * 8190 = 819
50% * 662 = 331
50% * 188 = 94

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Kipish [7]

Answer:

A

Step-by-step explanation:

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5 0
2 years ago
Write the equation of the line that passes through (3, −2) and is perpendicular to y equals 3 fourths times x plus 6 period y eq
Alex

The equation of the line that passes through (3, −2) and is perpendicular to y = (3/4)x + 6 will be y = -(4/3)x + 2. Then the correct option is B.

<h3>What is the equation of a perpendicular line?</h3>

Let the equation of the line be ax + by + c = 0. Then the equation of the perpendicular line that is perpendicular to the line ax + by + c = 0 is given as bx - ay + d = 0. Or if the slope of the line is m, then the slope of the perpendicular line will be negative 1/m.

The equation of the line is given below.

y = (3/4)x + 1/3

The slope of the line is 3/4. Then the slope of the perpendicular line will be

Slope = - 1 / (3/4)

Slope = - 4 / 3

Then the equation of the line will be

y = -(4/3)x + D

The line is passing through (3, -2), then the value of D will be

-2 = (-4/3) × 3 + D

-2 = - 4 + D

D = 2

The equation of the line that passes through (3, −2) and is perpendicular to y = (3/4)x + 6 will be y = -(4/3)x + 2. Then the correct option is B.

More about the equation of a perpendicular line link is given below.

brainly.com/question/14200719

#SPJ2

7 0
1 year ago
Read 2 more answers
4. Tisha has two bags of marbles like the ones
ki77a [65]

Answer:

0.25

Step-by-step explanation:

Bag 1 :

Number of marbles = 6

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Number of marbles = 4

Number of Blue marbles = 2

Recall :

Probability = required outcome / Total possible outcomes

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P(blue) = Number of Blue marbles / total marbles

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Probability of a picking a blue marble from each bag :

1/2 * 1/2 = 1/4 = 0.25

6 0
3 years ago
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