3 years ago

Helppppppppppppppppppppppppppppppppppppp

Mathematics

1 answer:

Kryger [21]3 years ago

4 0

The answer to this would be 2

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Hallo what is thit see 45:5+90+66:2

Viefleur [7K]

45/5+90+66/2

=9 + 90 + 33

=99 +33

=132

7 0

3 years ago

A local lake has a fish population that follows a geometric series with these properties first time equals 48 ratio equals 1/4 d

kondaur [170]

Answer:

64.

Step-by-step explanation:

Sigma notation is ∑48(1/4)^(n-1).

Upper limit = a1 / (1 - r) where a1 = initial population and r = common ratio.

So it is 48 / (1 - 1/4)

= 48 / 3/4

= 48 * 4/3

= 64.

4 0

3 years ago

A-b

Lynna [10]

Answer:

$\boxed{\sf d. \ \frac{a}{b} = \frac{10}{7}}$

Step-by-step explanation:

$\sf \implies \dfrac{a - b}{b} = \dfrac{3}{7} \\ \\ \sf \implies \frac{a}{b} - \frac{b}{b} = \frac{3}{7} \\ \\ \sf \implies \frac{a}{b} - 1 = \frac{3}{7} \\ \\ \sf \implies \frac{a}{b} - 1 + 1 = \frac{3}{7} + 1 \\ \\ \sf \implies \frac{a}{b} = \frac{3}{7} + 1 \\ \\ \sf \implies \frac{a}{b} = \frac{3}{7} + \frac{7}{7} \\ \\ \sf \implies \frac{a}{b} = \frac{3 + 7}{7} \\ \\ \sf \implies \frac{a}{b} = \frac{10}{7}$