4 years ago

Is (2,1) a solution of 3y<2x+5

Mathematics

1 answer:

Nikitich [7]4 years ago

3 0

Answer:

Step-by-step explanation:

Plug in the x and y values and you should get 3<9

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Type the correct answer in each box. If necessary, use / for the fraction bar. Complete the statements about series A and B. Ser

aleksandrvk [35]

Answer:

Series A has an r value of 2/5 and series A has an r value of 3. The sum of the series A is 50/3

Step-by-step explanation:

A geometric sequence is in the form a, ar, ar², ar³, . . .

Where a is the first term and r is the common ratio = $\frac{a_{n+1}}{a_n}$

For series A: 10+4+8/5+16/25+32/125+⋯ The common ratio r is given as:

$r=\frac{a_{n+1}}{a_n}=\frac{4}{10} =\frac{2}{5}$

For series B: 1/5+3/5+9/5+27/5+81/5+⋯ The common ratio r is given as:

$r=\frac{a_{n+1}}{a_n}=\frac{3/5}{1/5} =3$

For series A a = 10, r = 2/5, which mean 0 < r < 1, the sum of the series is given as:

$S_{\infty}=\frac{a}{1-r}=\frac{10}{1-\frac{2}{5} } =\frac{50}{3}$

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3 years ago

A map of Utah has a scale of 1 cm : 30 mi. The border of Utah and Wyoming measures about 3.7 cm. How long is the actual border o

Maru [420]

<span>3.7x 30 = </span>111 mi is the correct answer

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3 years ago

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Whats the answer to this?<br><br><br> ‐13−23= ‐13 +-23

andrey2020 [161]

Answer:

-36

Step-by-step explanation:

‐13−23= ‐13 + (-23) = -36

Both 13 and 23 have negative sign. So if two numbers have the same sign, we have to add and put the same sign.

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3 years ago

How can I write Five less than the quotient of a number and 3 is -7 in algabreaic expression

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Answer:

$(n\div{3})-5={-7}$

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3 years ago

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Answer: He bought 7 pens.

Step-by-step explanation:

21/3 = 7

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3 years ago

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