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ololo11 [35]
2 years ago
13

Help :( ik I asked a questions a few mins ago my brain just isn’t it today

Mathematics
1 answer:
ELEN [110]2 years ago
7 0
I can’t see your scream is crack
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If a person bikes 6 miles in 15 minutes, how far can she bike in 1.5 hours?
Natalka [10]

Answer:

36\:miles

Step-by-step explanation:

There is <em>one-and-a-half</em> <em>hour</em> in <em>ninety</em><em> </em><em>minutes</em>,<em> </em>so multiply 6 by 15 to get 90, then whatever is done to the bottom is also done to the top, so you <em>square</em> 6 to get 36.

I am joyous to assist you anytime.

8 0
3 years ago
ULICU<br> Find k.<br> k<br> 45°<br> 7-12 m<br> 45°<br> O 7<br> O 72<br> O 7V2<br> 2<br> O 14
Lera25 [3.4K]

Answer:

O7v2 hope that helps ya! Mark as brainlest

6 0
2 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
Which of the expressions below are equivalent? 8x - 4 4x 4(2x - 1)
alexandr402 [8]
8x-4 and 4(2x-1)




4(2x-1) the four needs to be distributed in the parentheses.

4*2x=8x
4*(-1)=(-4)

8x-4=8x-4
4 0
2 years ago
Find the value of y/3 + 11 = y/2 - 3
stira [4]

Answer:

y= 84

Step-by-step explanation:

i used another site to answer this

5 0
3 years ago
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