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N76 [4]
3 years ago
15

1) evaluate the value of -13 +|-2+ 5 -6

Mathematics
1 answer:
emmainna [20.7K]3 years ago
6 0
-10 I got from simplifying or evaluating
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The radioactive substance uranium-240 has a half-life of 14 hours. The amount
k0ka [10]
<h2>Answer:</h2>

See analyris

<h2>Step-by-step explanation:</h2>

Hlug\ in\ the\ value\ of \left.\ t.\right\}

The\ infital\ ampunt\ in\ the\ sample:

t=0_{-1}\ \ \ \ \ f(t)=39\omega\bullet(\frac{1}{2})^\frac{0}{14}

                        =3900\ g.

Ater\ bo\ busis.

t=6,\ \ \ \ \ A(t)=2900\times(\frac{1}{2})^\frac{60}{14}

                       =3900\times(\frac{1}{2})^\frac{30}{7}

                       \approx 209.

<em>I hope this helps you</em>

<em>:)</em>

6 0
3 years ago
I need help with geometry
JulijaS [17]
Tan x = 16 / 7
tan x = 2,9
x = tan ^ -1 (2,9) = 66°
3 0
3 years ago
Read 2 more answers
Which og the following represents an equation? a. 3x+13-5 b. 3+11=14 c. x+14 d. x/5-2
jekas [21]
B. 3+11=14 because it has an equal sign.
equation has the word equal so evrething with an equal sign is an equation
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3 years ago
What is the value of x?<br> (The last picture was blackoops)
Sophie [7]

Answer:

38°

Step-by-step explanation:

Every triangle has 180°. This means that all the angles must sum 180°.

(3x-16)+(x+6)+x=180\\3x-16+x+6+x=180\\5x-10=180\\5x=180+10\\5x=190\\x=\frac{190}{5}\\x=38

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Marrrta [24]

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3x + 10y + 5 (you're answer needs to be 20 characters long )

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3 years ago
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