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Travka [436]
2 years ago
5

PLZ SOLVE, NEED DONE BY 3:15!!!!!!!!!

Mathematics
1 answer:
Oliga [24]2 years ago
3 0

Answer:

Train A - 80

Train B - 85

Train B is faster.

Step-by-step explanation:

Hope this helps! Pls give brainliest!

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Sedbober [7]

Answer:

E ( 1 , -1 ) is in quadrant IV

6 0
3 years ago
A line passes through the point (-2,7) and had a slope of -5
Annette [7]

Answer:

a = -1

Step-by-step explanation:

The general equation for a straight line is y = mx+c, where m is the gradient/ slope, so m = -5. The first thing we need to do is find c, which we do by plugging in the x and y values that we already know: y = 7 and x = -2

7 = -5*(-2) + c

7 = 10 + c

c = 7-10 = -3

Now, we have the general equation of y = -5x -3 and we can use this to find a.

We'll treat a as x and y will be equal to 2:

2 = -5a -3

5 = -5a (Divide both sides by 5)

-a = 1 (now by -1)

a = -1

7 0
3 years ago
Read 2 more answers
In a lab experiment, 1900 bacteria are placed in a petri dish. The conditions are such
GREYUIT [131]

Answer:

393 bacteria

Step-by-step explanation:

First find how much it would increase per hours :

1900 / 29 = 65.5172414

Then take this and multiply it by 6 to get :

393.103448

Round it to the nearest whole number to get:

393 bacteria

3 0
3 years ago
1.<br> | 3x +21<br> a. Equation<br> 6x - 60<br> b, Value of x<br> c. Angle Measures
navik [9.2K]

Answer:

27.333333333333333333333333333333333333333333333333 is answer

4 0
2 years ago
What happens to the circumference of a circle when the radius is quadrupled?
kogti [31]
He circumference of a circle<span> is equal to the diameter times pi. So, let's look at </span>what happens<span> if you double the </span>radius<span> of a </span>circle<span> -- say from 2 to 4. The area will go from 12.56 to 50.24. This means that it has </span>quadrupled<span>.</span>
6 0
3 years ago
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