Choose the answer that shows exponential decay?*

A) y=1/3•2^x
B) y=4•(1/2)^x
C) y=4•2^x
D) y=1/2•2^x

Answer:

C

Step-by-step explanation:

Steps in pic below

Answer:

What is the full question?

Step-by-step explanation:

Answer:

I think you have to factor 3 out of 21a+9 which is 3(7a+3). I hope this helps:)

Step-by-step explanation:

Answer:

v-42ryoggjihfjcfjbfj

Answer:

a. are for the same time period

Answer:

Step-by-step explanation:

y -30 plus 30 = 84 plus 30

y = 114

Your welcome BiThhhh

Answer:

y-114

Step-by-step explanation:

Answer:

A or B

Step-by-step explanation:

Also i need help to

Answer:

A. [tex]\sqrt{16}[/tex] × [tex]\sqrt{4}[/tex]  

I hope this helps!

9514 1404 393

Answer:

  22 miles per hour

Step-by-step explanation:

Her average speed for the journey is found by dividing the total distance by the total time:

  (50 mi + 60 mi)/(2 h + 3h) = (110 mi)/(5 h) = 22 mi/h

Answer:

1.88, good luck for you

Answer:

r = 8

Step-by-step explanation:

The circumference of a circle is given by :

[tex]C=2\pi r[/tex] ...(1)

We need to find the value of r when C = 16π

Solving equation (1)

[tex]r=\dfrac{C}{2\pi}\\\\r=\dfrac{16\pi}{2\pi}\\\\r=8[/tex]

So, the value of r is 8. Hence, the correct option is (b).

Step-by-step explanation:

7x^2+7x-x-1

7x(X+1) -1(X+1)

(7x-1) (x-1)

X=1/7 , 1

Answer:

1

Step-by-step explanation:

1+1=2 :D

Answer:

4.10=4.x+28

4.x=40-28

4.x=12

x=12/4

x=3

Answer: $68.80

Step-by-step explanation: the discount is 14% because it is subtracted from 20% and 0.14 x 80 is 68.80 hope this helps

Answer:

yes this is

Step-by-step explanation:

Answer:

Step-by-step explanation:

Other ways are:

So in total there are:

Answer:

7.875 will be taken off

Answer:

a

Step-by-step explanation:

1.cross multiplication

MARK ME BRAINELIST

Answer:

6

Step-by-step explanation:

So I assume it's 4 × x × 2 = 48

First multiply the like terms (4 x 2) and you'll get 8.

8 × x = 48

Then you 8 by the x and get 8x

8x = 48.

Lastly you'll just divide 48 by 8 and get 6.

Hope your brother understands how this works now! (It's basically legal cheating)

Answer:

6

Step-by-step explanation:

im not the smart too sorry

Answer:

20 2 3 6 10 998778889899999

Answer:

(0,0)

Step-by-step explanation:

Answer:

The theater has 32 rows

Step-by-step explanation:

The rule of the sum of n terms of an arithmetic sequence is S[tex]_{n}[/tex] = [tex]\frac{n}{2}[/tex] (a + l), where

∵ The number of seats per row follows an arithmetic sequence

∵ The first row has 26 seats

∴ a = 26

∵ The last row has 150 seats

∴ l = 150

∵ The theater seats are 2,816

∴ S[tex]_{n}[/tex] = 2,816

→ Substitute these values in the rule of the sum above to find n

∵ 2,816 = [tex]\frac{n}{2}[/tex](26 + 150)

∴ 2,816 = [tex]\frac{n}{2}[/tex](176)

∴ 2,816 = 88n

→ Divide both sides by 88

∴ 32 = n

∵ n represents the number of the rows

∴ The theater has 32 rows

Answer:

- 1

Step-by-step explanation:

y = mx + b ( "m" is slope and "b" is y-intercept )

The equation of a given line is

y = - 2x - 2

Coordinates of x-intercept are ( x, 0 ) ⇒ 0 = - 2x - 2 ⇒ x = - 1

The x-intercept of the line is ( - 1 )

Answer:

I think A but i'm not sure

Step-by-step explanation:

The answer is letter b. $4.20 / 60 ounce is the rate for the glass bottle while $3.06 / 51 ounces is the rate for the plastic one. Simplified, the glass bottle is $0.07 / ounce while the plastic bottle is $0.06 / ounce.

Answer:

4. c + b/a

Step-by-step explanation:

ax - b = c (Given)

ax = c + b (Add b on both sides)

x = c + b/a = (Divide a on both sides)

Answer:

The next number of the series 0, 1/3, 1/2, 3/5, and 2/3 is 5/7

Step-by-step explanation:

The given numbers are;

0, 1/3, 1/2, 3/5, and 2/3

The number sequence is formed adding [tex]\dfrac{1}{\left (\dfrac{n^2 + n}{2} \right ) }[/tex] to each (n - 1)th term to get the nth term number in the sequence, with the first term equal to 0, as follows;

For the 2nd term, the (n - 1)th term is 0, and n = 2, gives;

The

[tex]0 +\dfrac{1}{\left (\dfrac{2^2 + 2}{2} \right ) } = 0 + \dfrac{1}{3} = \dfrac{1}{3}[/tex]

For the 3rd term, the (n - 1)th term is 1/3, and n = 3, gives;

[tex]\dfrac{1}{3} +\dfrac{1}{\left (\dfrac{3^2 + 3}{2} \right ) } = \dfrac{1}{3} + \dfrac{1}{6} = \dfrac{1}{2}[/tex]

For the 4th term, the (n - 1)th term is 1/2, and n = 4, gives;

[tex]\dfrac{1}{2} +\dfrac{1}{\left (\dfrac{4^2 + 4}{2} \right ) } = \dfrac{1}{2} + \dfrac{1}{10} = \dfrac{3}{5}[/tex]

For the 5th term, the (n - 1)th term is 3/5, and n = 5, gives;

[tex]\dfrac{3}{5} +\dfrac{1}{\left (\dfrac{5^2 + 5}{2} \right ) } = \dfrac{3}{5} + \dfrac{1}{15} = \dfrac{2}{3}[/tex]

For the next or 6th term, the (n - 1)th term is 2/3, and n = 6, gives;

[tex]\dfrac{2}{3} +\dfrac{1}{\left (\dfrac{6^2 + 6}{2} \right ) } = \dfrac{2}{3} + \dfrac{1}{21} = \dfrac{15}{21} = \dfrac{5}{7}[/tex]

The next number of the series 0, 1/3, 1/2, 3/5, and 2/3 = 5/7.

Answer:

Y=[tex]\frac{1}{3}[/tex]X-4

Step-by-step explanation:

Using the slope-intercept equation, a line is given as y=mx+b, where m represents the slope and b represents the y-intercept. From this graph, we can see that the slope is 1/3 and this line meets the y-axis at -4.

Thus, using that information, we substitute this into the equation to get

y= (1/3)x - 4

Answer:

its the forth one i got it right

Step-by-step explanation:

Answer:

6

Step-by-step explanation:

Find mean

Find. Absolute deviation=[Xi-mean]

Find mean deviation

Answer:

Hope you got it....

Step-by-step explanation:

1=tan45∘

1=tan(22∘+23∘)

1=tan22∘+tan23∘1−tan22∘tan23∘

1−tan22∘tan23∘=tan22∘+tan23∘

1=tan22∘+tan23∘+tan22∘tan23∘

It will be the same for any two angles that add up to 45∘.

Answer:

ooo....

Step-by-step explanation:

22° + 23° = 45°

taking tan on both side

or,tan(22° + 23°)=tan45°

or,(tan22° + tan23°)/(1-tan22°. tan23°)=1

or,tan22° + tan23° =1- tan22°. tan23°

or,tan22° + tan23° + tan22°. tan23° = 1 ​

                            proved