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Sever21 [200]
3 years ago
8

Help me answer all of those questions

Mathematics
1 answer:
Molodets [167]3 years ago
3 0

1) 100N 2) 0.3m/s² 3) 1/2 kg

Step-by-step explanation:

1) F = ma

F = 50×2

F = 100N

2) F = ma

9000 = 30000×a

(9000÷30000) = a

a = 0.3m/s²

3) F = ma

1 = m×2

(1÷2) = m

m = 1/2 kg

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. A car travels 605 miles in 11 hours. What is the average number of miles traveled per hour?
liberstina [14]

Answer:

55 miles per hour

Step-by-step explanation: You divide by the speed

605 miles/ (55 miles per hour)= 11 hours

hope this helped

4 0
3 years ago
Evaluate:<br> 2n=1(3n + 2) = [?]
alexandr402 [8]

Answer:

n = -2

Step-by-step explanation:

2n = 3n + 2

-n = 2

n = -2

4 0
2 years ago
Solve u+3v^2-2u^3; u=-1 and v=-3
Umnica [9.8K]
3v^2= 81 -2u^3=8
81-8=73
3 0
3 years ago
Solve the equation without the use of a calculator. please Help!!! Thank you!!!<br> 12x^3-30x=8-2x^2
Arisa [49]

12x^3 +2x^2-30x = 8
2x( 6x^2 +x -15) = 8
so 2x= 8, x=4
(2x) ( 2x-3) ( 3x+5) = 8
2x-3 = 8
2x= 11
x= 5.5
3x+5=8
3x= 3
x=1
3 0
3 years ago
Un ascensor sube desde el primer piso al quinto piso, baja al segundo, sube al octavo. Si cada piso tiene 3 metros de altura, ¿c
german

Answer:

El ascensor recorrió unos 39 metros

Step-by-step explanation:

Segun la pregunta cada cada piso tiene 3 metros de altura, por lo tanto para calcular los metros que recorrió el ascensor tenemos que hacer el siguiente calculo:

metros desde el primer piso al quinto piso=3 metros*4=12 metros

metros desde el quinto piso al segundo piso=3 metros*3=9 metros

metros desde el segundo piso al octavo piso=3 metros*6=18 metros

Por lo tanto los metros que recorrió el ascensor=12 metros+9 metros+18 metros

metros que recorrió el ascensor=39 metros

El ascensor recorrió unos 39 metros

8 0
3 years ago
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