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2 years ago

What is 75% of 45? somebody help me quick :)

Mathematics

2 answers:

r-ruslan [8.4K]2 years ago

6 0

Answer: 33.75

Step-by-step explanation:

45 x 0.75 = 33.75

FrozenT [24]2 years ago

4 0

Answer:

33.75 :)

Step-by-step explanation:

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riadik2000 [5.3K]

Answer:

y=2x+6

Step-by-step explanation:

slope intercept formula → y=mx+b

$\frac{6-2}{0-(-2)} =\frac{4}{2} =2\\$

so 2 is your slope and the point (0,6) crosses the y-intercept at 6 since x = 0

plugin 2 for m (or the slope) and 6 for b (y-intercept)

your answer → y=2x+6

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2 years ago

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2 years ago

Can you please help me understand this question please?

GREYUIT [131]

Answer:

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2 years ago

Verify that P = Ce^t /1 + Ce^t is a one-parameter family of solutions to the differential equation dP dt = P(1 − P).

NemiM [27]

Answer:

See verification below

Step-by-step explanation:

We can differentiate P(t) respect to t with usual rules (quotient, exponential, and sum) and rearrange the result. First, note that

$1-P=1-\frac{ce^t}{1+ce^t}=\frac{1+ce^t-ce^t}{1+ce^t}=\frac{1}{1+ce^t}$

Now, differentiate to obtain

$\frac{dP}{dt}=(\frac{ce^t}{1+ce^t})'=\frac{(ce^t)'(1+ce^t)-(ce^t)(1+ce^t)'}{(1+ce^t)^2}$

$=\frac{(ce^t)(1+ce^t)-(ce^t)(ce^t)}{(1+ce^t)^2}=\frac{ce^t+ce^{2t}-ce^{2t}}{(1+ce^t)^2}=\frac{ce^t}{(1+ce^t)^2}$

To obtain the required form, extract a factor in both the numerator and denominator:

$\frac{dP}{dt}=\frac{ce^t}{1+ce^t}\frac{1}{1+ce^t}=P(1-P)$

3 0

3 years ago

What times two equals 148

Ratling [72]

That would be 74 because when you divide 148/2=74

3 0

2 years ago

Read 2 more answers