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Mrrafil [7]
3 years ago
12

Hi! I would like some help! Thanks​

Mathematics
1 answer:
babymother [125]3 years ago
3 0

Step-by-step explanation:

should I do it on peace of paper?

inbox

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Un tren de carga va a una velocidad constante de 60 km/h y pasa por un túnel de 340 m de largo. ¿Cuánto mide el tren, si es que
grigory [225]

Answer:

the length would be 410.15m

Step-by-step explanation:

The computation of the length is as follows;

Length = 340m

Let us assume x be train length

Now

the distance traveled by the train is  (L + x)

d = L + x

v = 60 km ÷ h

= 16.67 m / s

And,

t = (3 ÷ 4) (60)

= 45s

Now

d = vt

L + x = (16,67) (45)

x = (16,67) (45) - 340m

x = 410.15m

Hence, the length would be 410.15m

8 0
3 years ago
A linear graph contains the points (3, -5 and (7, 11)
abruzzese [7]
Slope
y2-y1/x2-x1
11+5/7-3
4
now plug and chug with -5=4(3)+b
3 0
3 years ago
Read 2 more answers
What is it???????????
kobusy [5.1K]

Answer:

4/5

Step-by-step explanation:

The rise is 4, and the run is 5. The rise comes first, so the answer is 4/5. The line is positive.

6 0
3 years ago
Read 2 more answers
PLZ SOMEONE HELP ME
Sphinxa [80]

Answer:

9 teaspoons of cocoa

Step-by-step explanation:

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6 0
3 years ago
Use the method of symmetry to find the extreme value of each quadratic function and the value of x for which it occurs.
-BARSIC- [3]

Answer:

  • See below

Step-by-step explanation:

The x-intercepts are the points with y- coordinate of 0

  • (x - 3)(x + 8) = 0
  • x - 3 = 0 or x + 8 = 0
  • x = 3 or x = - 8

a) x-intercepts are

  • 3 and - 8

b) midpoint of x-intercepts is

  • (3 - 8)/2 = - 5/2 = - 2.5

c) The extheme value has x- coordinate of - 2.5 and y- coordinate

  • (-2.5 - 3)(- 2.5 + 8) = (-5.5)(5.5) = - 30.25

d) f(- 2.5) = - 30.25

3 0
2 years ago
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