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vazorg [7]
3 years ago
5

I need help please! 35 points to who ever can solve it, no links please.

Mathematics
2 answers:
Pepsi [2]3 years ago
8 0

Answer:

2. -2

2b. 28

2c. I'm confused

3. >

b. <

c. >

d. =

from e to j, I have no idea

Step-by-step explanation:

I hope this helps :)

tiny-mole [99]3 years ago
5 0
Are you asking for all of them or just certain ones?
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You stuffed 108 envelopes in 45 minutes. At this rate, how many envelopes can you stuff in 2 hours?
Anuta_ua [19.1K]

Answer:

288

Step-by-step explanation:


8 0
3 years ago
A carpet in Frank's house has a length of 2 1/4 meters and a width of 1 1/5 meters. What is the perimeter of the carpet?
stich3 [128]

Answer:

4.5+2.4=6.9

Step-by-step explanation:

Fraction form: 69/10

6 0
3 years ago
Read 2 more answers
Put the steps in correct order to prove that if x is irrational, then 1/x is irrational using contraposition.
SOVA2 [1]

Answer:

The correct order is:

a

c

d

b

Step-by-step explanation:

First, let's write 1/x in a convenient way for us:

a) Substitute 1/x = p/q, to obtain x = 1/(1/x) = 1/(p/q) = q/p.

Now we assume that 1/x is rational (we want to prove that this implies that x will be also rational and because we know that x is irrational assuming that 1/x is rational will lead to an incongruence), then:

c. If 1/x is rational, then 1/x = p/q for some integers p and q with q ≠ 0. Observe that p is not 0 either, because 1/x is not 0.

Now we know that we can write x as a quotient of two integers, we need to imply that, then the next one is:

d) Observe that x is the quotient of two integers with the denominator nonzero.

And that is the definition of rational, then we end with:

b) Hence x is rational.

Which is what we wanted to get.

5 0
3 years ago
find a model for simple harmonic motion if the position at t = 0 is 6, the amplitude is 6 centimeters, and the period is 4 secon
Y_Kistochka [10]

Answer:

y = 6cos(π/2)t

Step-by-step explanation:

Given in the question that,

in a simple harmonic motion in which

at t=0 the amplitude is 6 cm, so the simple harmonic motion will be in cosine form. As in case of sine function, the value of function at t=0 is 0.  

And,

the period is given as 4 sec

We know that model equation of simple harmonic motion is

<h3>y = a. cosb(t + c) + d</h3>

here,

a is amplitude

c is Horizontal shift or phase shift

d is Vertical shift

<h3>Step1</h3><h3>Find b</h3>

Period = 2 π / b

4 = 2π / b

b = 2π/4

b = 1π/2

<h3>Step2</h3><h3>Find shifts</h3>

Horizontal and vertical shifts are 0.

So, c = 0 and d = 0

<h3>Step3</h3><h3>Plug those values in the above in the equation</h3>

y = 6cos π/2 (t + 0) + 0

y = 6cos(π/2)t

4 0
3 years ago
Please help me urgentttt I'll give u BRAINLIST!
mixas84 [53]

(x)(x2)+(−4)(x2)+−16x+4

=x3+−4x2+−16x+4

Answer:

=x3−4x2−16x+4

This is what I got hope its helpful

8 0
3 years ago
Read 2 more answers
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