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3 years ago

NEED ASAP PLEASE SHOW WORK! Follow the directions and solve this sequence for the first 10 terms:-3,-12,-48,-192

Mathematics

1 answer:

Novay_Z [31]3 years ago

3 0

Answer: B (786,432)

Geometric sequence follows by multiplying by 4.

-3

-12

-48

-192

-768

-3072

-12288

-49152

-196,608

-786,432

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How do you classify this polynomial? 4x^5-3x^2-8

WINSTONCH [101]

This would be a Quintic Trinomial; it has a degree of 5 and 3 terms.

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3 years ago

A computer can sort x objects in t seconds, as modeled by the function

r-ruslan [8.4K]

Answer:

36 objects

Step-by-step explanation:

You want the value of x when t=9, so you're solving ...

9 = 0.007x^2 +0.003x

9 = 0.007(x^2 + 3/7x)

From here, we observe that an approximation is probably sufficient.

9/0.007 = x(x +3/7) . . . . . the expression on the right is nearly x^2

x ≈ 3/√.007 ≈ 35.9 ≈ 36

We can check:

.007(36)(36 3/7) = 9.18

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3 years ago

Need help please, Algebra 1/Polynomials

expeople1 [14]

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3 years ago

Write the repeating decimal as a fraction. 0.(Shown above)

gulaghasi [49]

For this case we must find a fraction such that its result is given by a decimal of the form:

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Option A:

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Option B:

$\frac {10} {37} = 0.27027027$

Option C:

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Option D:

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Answer:

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4 years ago

. A discount brokerage selected a random sample of 64 customers and reviewed the value of their accounts. The mean was $32,000 w

koban [17]

Answer:

The 90% confidence interval is $\$ \ 30313.9< \mu < \$ \ 33686.13$

Step-by-step explanation:

From the question we are told that

The sample size is n = 64

The sample mean is $\= x = \$ 32, 000$

The standard deviation is $\sigma= \$ 8, 200$

Given that the confidence interval is 90% then the level of significance is mathematically evaluated as

$\alpha = 100 - 90$

$\alpha = 10 \%$

$\alpha = 0.10$

Next we obtain the critical value of $\frac{ \alpha }{2}$ from the normal distribution table , the value is

$Z_{\frac{\alpha }{2} } = 1.645$

Generally the margin of error is mathematically represented as

$E = Z_{\frac{\alpha }{2} } * \frac{ \sigma }{ \sqrt{n} }$

=> $E = 1.645 * \frac{ 8200 }{ \sqrt{64} }$

=> $E = 1686.13$

The 90% confidence interval is mathematically represented as

$\= x - E < \mu < \= x + E$

=> $32000 - 1689.13 < \mu < 32000 + 1689.13$

=> $\$ \ 30313.9< \mu < \$ \ 33686.13$

5 0

4 years ago