3 years ago

WHAT IS THE ANSWER PLEASE TELL!

Mathematics

1 answer:

Ganezh [65]3 years ago

8 0

Um ma is tht even right ‍❤️‍‍

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Line CD contains points A (4, 6) and B (−2, 6). The slope of line CD is

Harrizon [31]

$m = \frac{y_{2} - y_{1}}{x_{2} - x_{1}} = \frac{6 - 6}{-2 - 4} = \frac{0}{-6} = 0$

The slope of line CD is 0, making the function equal to y = 6

8 0

3 years ago

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The half-life of lead is 22 years. How long will it take for a sample of this substance t decay to 80% of its original amount?

Svetlanka [38]

Answer: 7 years

Step-by-step explanation:

$t_{\frac{1}{2} }$ = In2 / ∧

since the half life is given , we have :

22 = In 2/ ∧

∧ = In2/22

∧ = 0.032

Recall the formula for half life:

$\frac{N(t)}{N(0)}$ = $e^{-∧t}$

Therefore:

0.80 = $e^{-0.032t}$

Take the In of both sides

In 0.80 = - 0.032t

t = In 0.80 / - 0.032

t = 7 years

4 0

4 years ago

Someone pls help me ill give out brainliest pls don’t answer if you don’t know

Xelga [282]

Hello!

(1/3)^2x = (1/3)^x+14 <=>

<=> 2x = x + 14 <=>

<=> 2x - x = 14 <=>

<=> x = 14

Good luck! :)

4 0

3 years ago

Find the length of the side f .

algol13

I am pretty sure the answer is 10. Someone correct me if I'm wrong
$10 {}^{2} + 15 {}^{2} = 18 {}^{2} \\ 100 + 225 = 325 \\ \sqrt{325} = 18$

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3 years ago

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Nicholas wants to buy the rug that has the bigger area. Should he buy the 5 x 7 one or the 4 x 10 one? (What is the formula to f

Mariana [72]

Answer:

He should buy the 4 x 10 rug because it has the larger area.

Step-by-step explanation:

To find the area of a rectangle or square, you multiply length by width (A=l x w). 5x7=35 and 4x10=40, so 4 x 10 has the bigger area.

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4 years ago