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iragen [17]
3 years ago
5

Explain how an estimate helps you place the decimal point when multiplying 3.9 × 5.3

Mathematics
1 answer:
4vir4ik [10]3 years ago
4 0
An estimate helps you place the decimal point when multiplying because if you find out how many decimals there are and once you are done doing you estimated multiplication you put two decimal points after that.


Hope I helped some what and didn't make you confused.

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(X1+X2/2). (Y1 + Y2/2) what is this equation called. its 16 letters long plz help need for 10th grade semester finals.​
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midpoint equation

Step-by-step explanation:

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What is the slope of the line that passes through the points (-10,0) and (-13,3)?
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Answer:

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Step-by-step explanation:

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Read 2 more answers
A quantity P is an exponential function of time I, such that P = 160 when t = 6 and P = 150 when I = 4. Use the given informatio
Klio2033 [76]

Answer:

  • k = 0.032
  • P0 = 131.836

Step-by-step explanation:

Perhaps you want to use the points (t, P) = (4, 150) and (6, 160) to find the parameters P0 and k in the equation ...

  P(t)=P_0\cdot e^{kt}

We know from the given points that we can write the equation as ...

  P(t)=150\left(\dfrac{160}{150}\right)^{(t-4)/(6-4)}=150\left(\dfrac{16}{15}\right)^{\frac{t}{2}-2}\\\\=150\left(\dfrac{16}{15}\right)^{-2}\times\left(\left(\dfrac{16}{15}\right)^{\frac{1}{2}}\right)^t

Comparing this to the desired form, we see that ...

  P_0=150\left(\dfrac{16}{15}\right)^{-2}\approx 131.836\\\\e^{k}=\left(\dfrac{16}{15}\right)^{1/2}\rightarrow k=\dfrac{1}{2}(\ln{16}-\ln{15})\approx 0.0322693

So, the approximate equation for P is ...

  P(t)=131.836\cdote^{0.032t}

And the parameters of interest are ...

  • k = 0.032
  • P0 = 131.836
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3 years ago
Simplify the following inequality 3x + 12 ≥2(4x + 3) −21<br><br> Help I need the answer ASAP
Vlada [557]

Answer:

x ≤ 27/5

Step-by-step explanation:

3 0
3 years ago
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