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musickatia [10]
3 years ago
13

Train a and train B left a central station at the same time they travel the same speed but in opposite directions return a headi

ng towards station a and train be heading towards station B train a reaches station a after 4 hours then train be reaching station be after three and a half hour station a station b r 562.5 miles apart what is the rate of the trains
Mathematics
1 answer:
baherus [9]3 years ago
3 0
You go A to B & B 2A + 8 + B to A&A to B&B to a and then you go see 2D to see 2D to see you today to see 2D which equals a + 8 + 8 + 8 + 8 and that's your answer for this question I know it doesn't look like it makes sense but it's correct I think
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The total employment for police officers in 2006 was 648,000. If there are 719,000 police officers in 2016, what will the percen
Sever21 [200]

Answer:

The answer is A. 12%

Step-by-step explanation:

6 0
2 years ago
. It takes 11 widgets to assemble one motor. Your team can assemble four motors in one day. If you need to order parts for next
Naya [18.7K]

Number of widgets needed to make one motor = 11

Number of motors made each day = 4

Number of widgets used per day :-

= 4 × 11

= 44 widgets

Number of widgets I need to order for the next five days of the upcoming week :-

= 44 × 5

= 220 widgets

Therefore , my team should order 220 widgets for the next week ( 5 working days ) .

8 0
3 years ago
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I do not understand this please help
Sergeeva-Olga [200]
Add all the numbers inside the shape
8 0
2 years ago
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a scientist notes that the number of bacteria in a colony is 50.3, hours later she notes that the number of bacteria has increas
Yuri [45]

The time it would take for the bacteria to reach 1119 is 5.83 hours

<h3>Calculations and Parameters:</h3>

Given the function:

Pt= P_0e^k^t

  • Initial amount= 50
  • amount after 3 hours= 80

To find the exponential growth;

80 = 50e^k^*^3

k= 1.6/3\\k= 0.533

If there is a constant growth, then to get to 1119:

1119= 50e^0^.^5^3^3^*t

3.8 = 0.533*t

t= 5.83 hours

Therefore, it would take 5.83 hours for the bacteria to increase to 1119.

Read more about exponential growth here:

brainly.com/question/2456547

#SPJ1

6 0
2 years ago
What is the value of discontinuity of x^2+8x+4/x^2-x-6? Choices:
Morgarella [4.7K]

Answer:

-2

Step-by-step explanation:

Hello,

First of all, let's check the denominator.

x^2-x-6 \ \ \text{ *** How to factorise it ...? ***}\\\\\text{*** The product of the roots is -6=-2*3 and their sum is 1 ***}\\\\x^2-x-6=x^2-3x+2x-6=x(x-3)+2(x-3)=(x+2)(x-3)

Now, let's see the numerator.

x^2+8x+4 \ \text{ *** -2 is not a zero as ***}\\\\(-2)^2+8*(-2)+4=4-16+8=-4\\\\\text{*** 3 is not a zero as ***}\\\\3^2+8*3+4=9+24+4=37\\

So we cannot factorise the numerator with (x+2) or (x-3)

Then, -2 and 3 are the the discontinuities of the expression.

There is only -2 in the list, this is the correct answer.

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

3 0
3 years ago
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