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kherson [118]
3 years ago
9

Four students wrote sequences during math class.

Mathematics
2 answers:
N76 [4]3 years ago
6 0
Doug because his sequence follows a rule of multiplying by -1/2 Hope I got it right for your sake.
AleksAgata [21]3 years ago
4 0

Answer:

Doug wrote geometric sequence.

Step-by-step explanation:

a geometric sequence is where we get common ratio between consecutive terms

\text{common ratio}=\frac{a_2}{a_1}

In case of Andre:

On substituting the values so as to find common ratio is

\frac{\frac{3}{8}}{\frac{3}{4}}=\frac{-1}{2}

\frac{\frac{-3}{16}}{\frac{3}{8}}=\frac{-1}{2}

\frac{\frac{-3}{32}}{\frac{-3}{16}}=\frac{1}{2}

Andre did not write a geometric sequence.

In case of Brenda:

On substituting the values so as to find common ratio is

\frac{\frac{-3}{8}}{\frac{3}{5}}=\frac{-5}{8}

\frac{\frac{3}{16}}{\frac{-3}{8}}=\frac{-1}{2}

\frac{\frac{3}{32}}{\frac{3}{16}}=\frac{1}{2}

Brenda did not write a geometric sequence.

In case of Camille

On substituting the values so as to find common ratio is

\frac{\frac{3}{8}}{\frac{3}{4}}=\frac{1}{2}

\frac{\frac{-3}{16}}{\frac{3}{8}}=\frac{-1}{2}

\frac{\frac{-3}{32}}{\frac{-3}{16}}=2

Camille did not write a geometric sequence.

In case of Doug:

On substituting the values so as to find common ratio is

\frac{\frac{-3}{8}}{\frac{3}{4}}=\frac{-1}{2}

\frac{\frac{3}{16}}{\frac{-3}{8}}=\frac{-1}{2}

\frac{\frac{-3}{32}}{\frac{3}{16}}=\frac{-1}{2}

Doug wrote a geometric sequence.

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Mika is a local farmer who is interested in how often residents in her town go to a farmer's market each month. She surveys 124
TEA [102]

Answer:

The margin of error is of 0.3012, and it means that we should be 99% confident that the population mean would be within 0.3012 of the sample mean.

Step-by-step explanation:

Margin of error

M = z\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation and n is the size of the sample.

Standard deviation of 1.3

This means that \sigma = 1.3

She surveys 124 families

This means that n = 124

Margin of error and meaning:

M = z\frac{\sigma}{\sqrt{n}}

M = 2.58\frac{1.3}{\sqrt{124}}

M = 0.3012

The margin of error is of 0.3012, and it means that we should be 99% confident that the population mean would be within 0.3012 of the sample mean.

6 0
2 years ago
The hypotenuse of a right triangle is 4 feet
zaharov [31]

Answer:

514 feet

Step-by-step explanation:

Just simply use the pythagorean thereom:

a^2 +b^2 = c^2

put in the values of a, b, and c with the side lengths of the triangle:

x feet, 64 feet, and x+4 feet

x^2 +64^2 = (x+4)^2 , thus x =510

the hypotenuse = x+4 feet = 510 + 4 = 514

ANSWER: 514 feet

3 0
3 years ago
PLS ANSWER ASAPP!!!<br> Order the numbers in the image above from least to greatest
Brrunno [24]

Answer:

The second one

Step-by-step explanation:

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2.71 is 2.71

2 3/4 is 2.75

2.24, 2.5, 2.71, 2.75

5 0
3 years ago
Hellp PLZZzzzzzzzxxxmxxxxxxxxxx
Andreyy89

Answer:

12. We use Rational numbers when the number is in P/q form

we don't use integers because they are not in p/q form

13.  Aron is wrong . he is not correct

an opposite of rational number can out be  negative it should be irrational number

opposite of integers are negative  that's why

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2 years ago
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djverab [1.8K]

Answer:

352 square yards is the answer

8 0
3 years ago
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