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3 years ago

Can someone please help me out again?

Mathematics

1 answer:

Veseljchak [2.6K]3 years ago

8 0

Answer:

12, 24, 60

Step-by-step explanation:

-4 goes in to 12 three times, and 6 goes into 12 twice

-4 goes into 24 six times, and 6 goes into 24 four times

-4 goes into 60 fifteen times, and 6 goes into 60 ten times

Hope this helps

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9864.9076×12309.775309163

Masteriza [31]

The answer is 121,434,796.00165

7 0

3 years ago

Half-life of Po-210 is 140 days. If the initial mass of the sample is 5

Anna35 [415]

Answer:

$0.625kg$

Step-by-step explanation:

we are given half-life of PO-210 and the initial mass

we want to figure out the remaining mass after 420 days

in order to solve so we can consider the half-life formula given by

$\displaystyle f(t) = a {0.5}^{t/T}$

where:

f(t) is the remaining quantity of a substance after time t has elapsed.
a is the initial quantity of this substance.
T is the half-life

since it halves every 140 days our T is 140 and t is 420. as the initial mass of the sample is 5 our a is 5

thus substitute:

$\displaystyle f(420)=5\cdot{0.5}^{420/140}$

reduce fraction:

$\displaystyle f(420)=5\cdot{0.5}^{3}$

By using calculator we acquire:

$\displaystyle f(420)=0.625$

hence, the remaining sample after 420 days is 0.625 kg

4 0

3 years ago

Please help and I will mark big brain

irga5000 [103]

Answer: 6

Step-by-step explanation:

(41--1)/ (8-1) = 42/7 = 6

3 0

3 years ago

Read 2 more answers

Use the quadratic formula to solve the equation

azamat

Answer:

Step-by-step explanation:

12−5+6=0

using the Quadratic Formula where

a = 1, b = -5, and c = 6

=−±2−4‾‾‾‾‾‾‾‾√2

=−(−5)±(−5)2−4(1)(6)‾‾‾‾‾‾‾‾‾‾‾‾‾‾√2(1)

=5±25−24‾‾‾‾‾‾‾√2

=5±1‾√2

The discriminant 2−4>0

so, there are two real roots.

Simplify the Radical:

=5±12

=62=42

which becomes

hope this helps :)

7 0

3 years ago

3 lb 9oz + 5lb 10 oz.

Eduardwww [97]

Answer:

9 lb 3 oz

Step-by-step explanation:

(3 + 5) lb + (9 + 10) oz

8 lb + 19 oz

16 oz = 1 lb

(8 + 1) lb + (19 - 16) ox

9 lb 3 oz

8 0

3 years ago