3 years ago

Please help me and answer correctly!

Mathematics

1 answer:

LenKa [72]3 years ago

3 0

A^-b = 1/a^b
a^b / a^c = a^b-c
a^c / b^c =(a/b)^c

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Look at the table. Make a conjecture about the sum of the first 15 positive even numbers.

Olenka [21]

Be observing the table, we can write the following conjecture:

When adding consecutive even numbers, starting from 2 to $m$ .

Then the sum is equal to:
$\frac{m}{2}( \frac{m}{2} +1)$

Then, the sum of the first 15 positive even numbers (which is the sum of 2 to 30) can be calculated with the previous conjecture by setting $m=30$ :
$\frac{m}{2}( \frac{m}{2} +1)=\frac{30}{2}( \frac{30}{2} +1)=(15)(16)=240$

The answer is 240.

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4 years ago

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kobusy [5.1K]

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3 years ago

Help‼️ if a number is even, then it is divisible by 2. g=14

AnnyKZ [126]

I’m pretty sure the answer is B.

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3 years ago

Identify the initial amount a and the growth factor b in the exponential function A(x)=680*4.3^

Free_Kalibri [48]

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4 years ago

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Martin uses 5/8 of a gallon of paint to cover 4/5 of a wall. What is the unit rate at which Martin paints in walls per gallon?

Papessa [141]

Answer:

The unit rate is 32/25 Walls per gallons.

Step-by-step explanation:

Gallons of paint used by Martin = 5/8 gallons

Portion of wall Martin wants to paint in pints = 4/5 wall.

Rate at which Martin paints the wall: Rate = Portion of wall covered/Paints Used.

Rate = 4/5 Gallons/5/8 Gallons = 32/25 Wall Gallons.

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3 years ago