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3 years ago

Help Please ~ 15 points

Mathematics

2 answers:

Serggg [28]3 years ago

6 0

Answer:

1- rational

2-rational

3- rational

4- rational

they are all rational

Step-by-step explanation:

Sauron [17]3 years ago

4 0

Answer:

The correct answer is all are rationals.

Step-by-step explanation:

Numbers that cannot be written as fraction of integers are irrationals.

145.25 is rational as it can be expressed as a fraction.

^2√64 is rational as this √64 is equal to 8.

-22 is a rational as integers are a subset of rationals only.

0 is a rational number.

√121 is rational as the value of √121 is 11 and 11 is rational.

0.6⁻ is rational as this can be expressed as fraction $\frac{2}{3}$ .

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____the number of combinations of n items chosen r at a time is the quotient of n factorial and the product of r factorial and t

horrorfan [7]

Answer:

nCr.

Step-by-step explanation:

That would be nCr,

For example

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3 years ago

A jewelry store is selling necklaces and bracelets. Each necklace yields a profit of $8 and each bracelet yields a profit of $6.

marta [7]

n = necklace

b = bracelet

n +b =120

n = 120-b

3.50n + 2.50b = 330

11n + 5b = 880

3.5(120-b) +2.5b=330

420-3.5b + 2.5b = 330

420 -b = 330

-b = -90

B =90

N = 30

3.5*30= 105

2.5*90 = 225

225 +105 = 330

11*30 = 330

90*5 = 450

450 +330 = 780

90 bracelets and 30 necklaces

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3 years ago

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Tatiana [17]

Answer:

B and E

Step-by-step explanation:

The zero of a function is whatever point on the function where the y-value is zero. Hope this helped.

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The unadjusted net income statement was $46850. After journalizing and posting the adjusted entry for the $2300 of dupplies used

alexandr1967 [171]

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Step-by-step explanation:

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If the supplies for the year was $2,300, the net income would be adjusted as follows:

= 46,850 - 2,300

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