I need help on khan academy write and expression for "the quotient of 9 and c."​

Answer: The time taken for the mass to reduce from 50 g to 41 g is 6 years

Step-by-step explanation:

Expression for rate law for first order kinetics is given by

[tex]t=\frac{2.303}{k}\log\frac{a}{a-x}[/tex]

where,

k = rate constant  

t = age of sample

a = let initial amount of the reactant  

a - x = amount left after decay process  

a) for completion of half life:

Half life is the amount of time taken by a radioactive material to decay to half of its original value.

[tex]t_{\frac{1}{2}}=22 years[/tex]

[tex]k=\frac{0.693}{t_{\frac{1}{2}}}=\frac{0.693}{22}=0.0315years^{-1}[/tex]  

b) for mass to reduce from 50 g to 41 g

[tex]t=\frac{2.303}{0.0315}\log\frac{50}{41}[/tex]

[tex]t=6years[/tex]  

The time taken for the mass to reduce from 50 g to 41 g is 6 years

Answer:

y=x^2 + 3x - 3

Hope it helped :)

Answer:

y+o+u+t+u+b+e +biggie smalls

Step-by-step explanation:

The polygon will be a triangle if the measure of each exterior angle is twice as large as each interior angle.

A polygon is a geometric figure with a finite number of sides in two dimensions. On the sides or edges of a polygon, straight-line segments are joined end to end to form a closed shape. The vertices, also known as corners, are the points where two line segments meet and form an angle.

As we know, the interior angle is given by:

= 180(n - 2)

Sum of the exterior angle is 360 degree

(360/n) = 2[180(n - 2)]/n

360 = 360(n - 2)

n = 3

Number of sides n = 3

Polygon will be a triangle

Thus, the polygon will be a triangle if the measure of each exterior angle is twice as large as each interior angle.

Learn more about the regular polygon here:

brainly.com/question/11810316

#SPJ2

Answer:

18,669,294

Step-by-step explanation:

Answer: it’s 18,669,294

Step-by-step explanation:

Answer:

Experimental probability is likely to be slightly different from theoretical probability.

Step-by-step explanation:

This is because there is a 50-50 chance, but it is unlikely to be exactly 100-100. That is just to hypothesis!

Subtract 60 from both sides to cancel it out. Now you have 5w=-8. Now divide 5 from both sides to cancel that out. Now you have w=-1.6.

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hope it helps

Answer:

w = -1.6

Step-by-step explanation:

Subtract 60 from 52. (-8)

You get 5w=-8.

Divide 5 by -8 to get w by itself. (-1.6)

To find if this is correct, do (5x-1.6)+60. (-8+60)

You get 52, therefore, w = -1.6

Answer:

Nadia is right

Step-by-step explanation:

if you use cross multiply 3/4 6/8. 8 x 3 = 24, 6 x 4 = 24, the two answer are both 24.

Answer:

18. lol

Step-by-step explanation:

Answer:

using the Pythagoras theorem,

[tex]a { }^{2} + b {}^{2} = c {}^{2} [/tex]

144+225=c squared

369=c sqared

13=c

so, your unknown value is 13

Answer:

The slope of line g is [tex]\frac{2}{9}[/tex].  

Step-by-step explanation:

We know that line f has a slope of [tex]-\frac{9}{2}[/tex] and that line g and line f are perpendicular to each other. Perpendicular lines have slopes that are opposite reciprocals of each other. Thus, the opposite reciprocal of  [tex]-\frac{9}{2}[/tex] must be the slope of line g.  

To find the opposite reciprocal of a number, change its sign and swap the numbers of the numerator and the denominator. So, the opposite reciprocal of [tex]-\frac{9}{2}[/tex] must be [tex]\frac{2}{9}[/tex]. [tex]\frac{2}{9}[/tex] has to be the slope of line g as well.

Answer:

Step-by-step explanation:

Where are the graphs?

Answer:

i dont know  im sorry

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Given

f(x) = [tex]\frac{1}{x+2}[/tex]

The denominator cannot be zero as this would make f(x) undefined.

Equating the denominator to zero and solving gives the value that x cannot be and if the numerator is non zero for this value then it is a vertical asymptote.

x + 2 = 0 ⇒ x = - 2

The equation of the vertical asymptote is x = - 2

Answer:

15! all the sides are the same length

Step-by-step explanation:

60/4

15

Answer:

51.08 in.²

Step-by-step explanation:

S.A = (l x b) + (l × h) + (b × h)

= (8.2 in. × 3.4 in.) + (8.2 in. × 2 in.) + (3.4 in. × 2 in.)

= 27.88 in.² + 16.4 in.² + 6.8 in.²

= 51.08 in.²

Answer:51.08

Step-by-step explanation: First you see what you have to do then you put it all together and it pops up with 51.08

Answer:

join kvp-cgtc-yjz

Step-by-step explanation:

1.125 is the answer

Answer:

-2x-5

Step-by-step explanation:

By distributing the -2 to the x+10 we get, "-2x-5". This is our final simplified answer.

Answer:

−2

Answer:

i don't know how to explain the answew to you

Step-by-step explanation:

Answer:

D. 43

Step-by-step explanation:

first do everything inside paranthesis (12-4)=8

then multipy 8 by 5= 40

40+3=43

hope this helps

Answer:

43

Step-by-step explanation:

Answer:

[tex]x = 16[/tex]

Step-by-step explanation:

[tex]3x + 5 + 9x - 19 = 180[/tex]

[tex]12x - 12 = 180[/tex]

[tex]12x = 180 + 12[/tex]

[tex] \frac{12x}{12} = \frac{192}{12} [/tex]

[tex]x = 16[/tex]

hope it helps you

Answer:

The answer to this inequality is y < -1/2.

Hope this could help you! (*＾წ＾*)

Answer:

[tex]y<-\frac{1}{2}[/tex]

Step-by-step explanation:

[tex]\frac{4}{3}<-\frac{8}{3}y[/tex]

[tex]-\frac{8}{3}y>\frac{4}{3}\\[/tex]

[tex]\left(-\frac{8}{3}y\right)\left(-1\right)<\frac{4\left(-1\right)}{3}[/tex]

[tex]\frac{8}{3}y<-\frac{4}{3}[/tex]

[tex]3\cdot \frac{8}{3}y<3\left(-\frac{4}{3}\right)[/tex]

[tex]8y<-4[/tex]

[tex]\frac{8y}{8}<\frac{-4}{8}[/tex]

[tex]y<-\frac{1}{2}[/tex]

Hope this helps!

All the love, Ya boi Fraser :)

Answer:

15.7

Step-by-step explanation:

arc length = [tex]\frac{angle}{360} * \pi * d[/tex]

d = diameter = 24

angle = 75 degrees

[tex]\frac{75}{360}*\pi *24[/tex] = 15.70796...

15.71

Answer:

(3, 2)

Step-by-step explanation:

Point B has the x-coordinate 3 and the y-coordinate 2, as can be read of directly from the graph.  Therefore Point B is (3, 2).

Answer:

(3,2)

Step-by-step explanation:

That is its location on the graph

Answer:

Are you looking for -6.2?

Step-by-step explanation:

If not let me know!

Answer:

2 4 8 16 32 64 128 256

Step-by-step explanation:

its doubleing evrey time

Answer:

7.594

Step-by-step explanation:

Answer:

1:4:3

Step-by-step explanation:

Hope that helps.

Have a good day and stay safe!

Answer: 1 : 4 : 3

Step-by-step explanation:

Their greatest factor is 3 so you had to divide all by 3.

3 ÷ 3 = 1

12 ÷ 3 = 4

9 ÷ 3 = 3

Answer:

3 pieces

I hope this helps

Step-by-step explanation:

X(1/3) = 1

x/3 = 1

X= 1×3 = 3

Answer: Theres 2 possible answers

M > 4 and M < -2

Step-by-step explanation:

:)

Answer:

Rectangle and also parallelograms as well.

Step-by-step explanation:

Rectangles have two pairs and four right angles. So more than one.

Answer:

-Square

-Rectangle

-Rhombus