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Mathematics

2 answers:

Liula [17]2 years ago

6 0

Answer:

Step-by-step explanation:

mark me brainliest pl

lawyer [7]2 years ago

3 0

The first option. 100% correct.

$a_n = 3\cdot a_{n-1}\\\\a_1 = 7\\\\a_2 = 3 a_{2-1} =3a_1 = 3(7) =21\\\\a_3 = 3 a_{3-1} =3a_2 = 3(21) = 63 \\\\a_4 = 3 a_{4-1} = 3 a_3 = 3 (63)=189\\\\7,21,63,189,......$

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Anyone know the answer to this algebra 2 question?

KATRIN_1 [288]

Answer:

The answer to your question is: I(dB) = 320

Step-by-step explanation:

Data

I(dB) = 10log( $\frac{I}{Io}$ )

I = intensity of a given sound

Io = hearing intensity

if I = 10³²(Io) find I(dB)

Process

Substitute the value of I in the equation given and simplify using logarithms rules.

l(dB) = $10 log \frac{10^{32}Io }{Io}$

Eliminate Io

I(dB) = 10 log (10³²)

Use the rule of powers in logarithms

I(dB) = 10(32)log(10)

l(dB) = 320(1)

I(dB) = 320

7 0

3 years ago

A woman who weighs 160 pounds on earth weighs 30 on the moon. If a boy weighs 60 pounds on earth , how much dose he weigh on the

Igoryamba

60Kg. Mass does not vary by the strength of the gravitational field. What changes is the weight which will only be about one-sixth of what it is on Earth. So a 60Kg mass on the Moon would weigh approximately the same as a 10Kg mass on the Earth.

3 0

2 years ago

Read 2 more answers

. (02.05 MC) Side AB = 5, side BC = 6, side DE = 5, and side EF = 6. What additional information would you need to prove that ΔA

vaieri [72.5K]

Answer:

Side AC is congruent to side DF

Step-by-step explanation:

We are given that

Side AB=5 cm

BC=6 cm

Side DE=5 cm