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ehidna [41]
3 years ago
6

Hey:) can you please help me posted picture of question

Mathematics
2 answers:
Keith_Richards [23]3 years ago
4 0
We have the following expression:
 (8x5 + 9) (8x3 + 9)
 Rewriting we have:
 64x ^ (5 + 3) + 72x ^ 5 + 72x ^ 3 + 81
 Rewriting we have:
 64x ^ 8 + 72x ^ 5 + 72x ^ 3 + 81
 Answer:
 
The solution for this case is given by:
 
64x ^ 8 + 72x ^ 5 + 72x ^ 3 + 81
elixir [45]3 years ago
3 0
Option B gives the correct answer.

The step by step solution using the FOIL method of multiplication is given below:

(8 x^{5}+9)(8 x^{3}+9) \\  \\ 
  =8 x^{5} (8 x^{3}+9) +9(8 x^{3}+9) \\  \\ 
=64 x^{8} +72 x^{5}+72 x^{3}+81
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7 = 3t - 3 - 2+ + 6. <br><br>Justification: ? property​
Volgvan

Answer:

7 = 3t + 1

t = 6

....................

7 = 3t - 2t + 3

t = 4

4 0
3 years ago
At a cell phone assembly plant, 77% of the cell phone keypads pass inspection. A random sample of 111 keypads is analyzed. Find
Serggg [28]

Answer:

The probability that the proportion of passed keypads is between 0.72 and 0.80 is 0.6677.

Step-by-step explanation:

According to the Central limit theorem, if from an unknown population large samples of sizes <em>n</em> > 30, are selected and the sample proportion for each sample is computed then the sampling distribution of sample proportion follows a Normal distribution.

The mean of this sampling distribution of sample proportion is:

 \mu_{\hat p}=p

The standard deviation of this sampling distribution of sample proportion is:

\sigma_{\hat p}=\sqrt{\frac{p(1-p)}{n}}

Let <em>p</em> = the proportion of keypads that pass inspection at a cell phone assembly plant.

The probability that a randomly selected cell phone keypad passes the inspection is, <em>p</em> = 0.77.

A random sample of <em>n</em> = 111 keypads is analyzed.

Then the sampling distribution of \hat p is:

\hat p\sim N(p,\ \sqrt{\frac{p(1-p)}{n}})\\\Rightarrow \hat p\sim N (0.77, 0.04)

Compute the probability that the proportion of passed keypads is between 0.72 and 0.80 as follows:

P(0.72

                             =P(-1.25

Thus, the probability that the proportion of passed keypads is between 0.72 and 0.80 is 0.6677.

8 0
3 years ago
When adding or subtracting two decimals, what is the first thing you must do
polet [3.4K]
Line up the decimals
5 0
3 years ago
Which of the following statements best describes the information below?
vagabundo [1.1K]

Answer:

ploopy eudyeu sududhd

Step-by-step explanation:

they'd ended ehehdh ehdhd ejdufu

7 0
3 years ago
Read 2 more answers
Write mixed number as an improper fraction.9 5/8
Vinil7 [7]

The Answer to your question is 77/8



5 0
3 years ago
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