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Maslowich
3 years ago
8

I need help thank you

Mathematics
1 answer:
balandron [24]3 years ago
7 0

Answer:

Question 4 is B

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What have I done wrong and where please help me
lys-0071 [83]
12x - 18 - 4x -2
12x - 4x = 8x (yours 12x - 4x = 8)
-18 - 2 = -20 (yours -18 -1 = 17)

answer:

8x - 20
6 0
3 years ago
A mass of 5 kg stretches a spring 10 cm. The mass is acted on by an external force of 10sin( t ) N(newtons) and moves in a mediu
yKpoI14uk [10]

Answer:

A) C1 = 0.00187 m = 0.187 cm,  C2 = 0.0062 m = 0.62 cm

B)  A sample of how the graph looks like is attached below ( periodic sine wave )

C) w = \sqrt[4]{3} is when the amplitude of the forced response is maximum

Step-by-step explanation:

Given data :

mass = 5kg

length of spring = 10 cm = 0.1 m

f(t) = 10sin(t) N

viscous force = 2 N

speed of mass = 4 cm/s = 0.04 m/s

initial velocity = 3 cm/s = 0.03 m/s

Formulating initial value problem

y = viscous force / speed = 2 N / 0.04 m/s = 50 N sec/m

spring constant = mg/ Length of spring = (5 * 9.8) / 0.1 = 490 N/m

f(t) = 10sin(t/2) N

using the initial conditions of u(0) = 0 m and u"(0) = 0.03 m/s to express the equation of motion

the equation of motion = 5u" + 50u' + 490u = 10sin(t/2)

A) finding the solution of the initial value

attached below is the solution and

B) attached is a periodic sine wave replica of how the grapgh of the steady state solution looks like

C attached below

3 0
3 years ago
Factor the trionomial x^2+15x+14
uysha [10]

Answer:(x+1)(x+14)


Step-by-step explanation:


8 0
3 years ago
Michelle bought a gift priced at $5.00.she gave the store clerk $20.00.she received three bills as change.what bills did she rec
goblinko [34]
The answer would be $5 bills

5*4 = 20 and he spent 5 you would only have 3 $5 bills.
5 0
3 years ago
Read 2 more answers
Which is greater? -5.7 or -5 2/5
AleksAgata [21]

Answer:

-5 2/5

Step-by-step explanation:

we know that 2/5 is 0.4 so

it is -5.4

-5.4 is greater than -5.7

3 0
3 years ago
Read 2 more answers
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