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3 years ago

Which statements about geometric sequences are true?

Mathematics

1 answer:

finlep [7]3 years ago

3 0

Answer:

Geometric sequences have a common ratio between terms. TRUE

Geometric sequences are restricted to the domain of natural numbers. FALSE

Geometric sequences can have a first term of 0. FALSE. If this were true, then every member the sequence would also be 0.

Step-by-step explanation:

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Find the area of the triangle below??

Sladkaya [172]

Answer:

94.8

Step-by-step explanation:

94.8 is the answer for 1st q

8 0

4 years ago

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steposvetlana [31]

Answer:

Its 6/3

Step-by-step explanation:

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3 years ago

Suppose a researcher is estimating the proportion of trees showing signs of disease in a local forest. They randomly sample 150

Serhud [2]

Answer:

$0.167 - 1.96 \sqrt{\frac{0.167(1-0.167)}{150}}=0.107$

$0.167 + 1.96 \sqrt{\frac{0.167(1-0.167)}{150}}=0.227$

And the 95% confidence interval would be given (0.107;0.227).

Step-by-step explanation:

Information given

$X= 25$ number of trees with signs of disease

$n= 150$ the sample selected

$\hat p=\frac{25}{150}= 0.167$ the proportion of trees with signs of disease

The confidence interval for the true proportion would be given by this formula

$\hat p \pm z_{\alpha/2} \sqrt{\frac{\hat p(1-\hat p)}{n}}$

For the 95% confidence interval the significance is $\alpha=1-0.95=0.05$ and $\alpha/2=0.025$ , and the critical value would be

$z_{\alpha/2}=1.96$

And replacing we got:

$0.167 - 1.96 \sqrt{\frac{0.167(1-0.167)}{150}}=0.107$

$0.167 + 1.96 \sqrt{\frac{0.167(1-0.167)}{150}}=0.227$

And the 95% confidence interval would be given (0.107;0.227).

6 0

3 years ago

Please solve and show steps, picture attached below. <br><br>Will award brainliest, thanks!

Natalija [7]

Answer: This is impossible because the absolute value function can never result in a negative number.

3 0

2 years ago

13-28 Sketch the region enclosed by the given curves and find its area.

Semenov [28]

Answer:

rea (A) 0.0682

Step-by-step explanation:

The sketch for the region enclosed by the given curves can be found in the image attached below.

From the image below;

The two curves intersect in the area of tan 9x = 2 sin 9x

Recall that:

making x the subject; then:

The subdivision of the domain is in two intervals

where;

Area (A) =

Area (A) = 0.06818

Area (A) 0.0682

7 0

2 years ago