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Question text
If 5750 is the half-life of carbon-14, what would you use for the exponential decay model for carbon-14?

Select one:

A.
A = A0e^-7.0475t


B.
A = A0^1.2055t


C.
A = A0e^-0.000103k


D.
A = Ae^-0.000121t

Answer:

JK is NOT tangent to the circle

Step-by-step explanation:

A tangent of a circle is a line that intersects a circle at one and only one point. For this reason, the radius will always intersect a tangent at a 90 degree angle to prove this single point intersection. From the triangle, we can introduce the Pythagorean theorem to see if the triangle is a right triangle:

a^2 + b^2 = c^2

48^2 + 14^2 = 36^2

2304 + 196 = 1296

2500 ≠ 1296

As this is not equal, the triangle is not a right triangle and therefore states that the tangent line does not intersect the radius at 90 degrees, meaning that it does not satisfy the requirements of a tangent line.

Answer:

second account

Step-by-step explanation:

fgh du hhghyy fguuyiugy hcyyitxguyiohiyhcegbjv. hightail oit n

Answer:

69090840 possible rankings

Step-by-step explanation:

The number of possible ranking ordered in terms of effectiveness can be obtained using permutation

Number of salesperson = 39

Number of rank = 5

nPr = n! ÷ (n - r)!

nPr = 39P5

39P5 = 39! ÷ (39 - 5)!

39P5 = 39! ÷ 34!

39P5 = 39 * 38 * 37 * 36 * 35 = 69090840

Answer: 2/3

Step-by-step explanation:

Answer:

the answer is 2/3

Step-by-step explanation:

divide both by 8

Answer:

C) M = 75h

Step-by-step explanation:

50 miles in 40 minutes = 75 miles per hour

M = 75h

Answer:

there is two terms. 3x^4 and 2y)^7

please mark as brainliest

Answer:

30

Step-by-step explanation:

Let the amount of money Taylor spent = x

The number of jeans she bought is 1-fith the amount of money she spent. She bought 6 jeans.

Hence

1/5 × x = 6 jeans

x/5 = 6 jeans

Cross Multiply

x = 5 × 6 jeans

x = 30

The amount of money Taylor spent = 30

Answer:

29

Step-by-step explanation:

Answer:

a)ab and yz, ac and xy, bc and xz

b)yz  =   xy  =   xz          30 = 37.5 = 45      3 = 3 = 3      

ab      ac        bc          40     50       60     4    4    4

c)they are similar because all sides break down to ¾  

Step-by-step explanation: i did this on my test

a) The pairs of proportional triangle is

AB and YZ,

AC and XY,

BC and XZ

b) The fraction of side is

YZ / AB = XY / AC= XZ / BC = 3/4.

c) Yes the similarity of Triangle.

Similar triangles are triangles that have the same shape but differ in size. Similar items include all equilateral triangles and squares with any side length. In other words, if two triangles are identical, their corresponding angles and sides are congruent and in equal proportion. The " sign here denotes the resemblance of triangles.

In Triangle ABC and YZX

a) So, the pairs of proportional triangle is

AB and YZ,

AC and XY,

BC and XZ

b) The fractions with your side pairs is

YZ / AB = 30 / 40 = 3/4

XY / AC = 37.5 / 50 =  3/4

XZ / BC = 45/ 60 = 3/4.

c) As, the ratio of sides are proportion.

So, by SSS similarity criteria the triangles are similar.

Learn more about Similarity here:

https://brainly.com/question/26451866

#SPJ3

Answer:

step 1

Step-by-step explanation:

Given

(x - 2)(3x + 4) ← apply distributive property

= (x - 2)(3x) + (x - 2)(4)

                        ↑ error is here , she put (x + 2)

In this exercise we have to use the knowledge of the distributive property, so In alternative 1 she made the mistake.

The distributive property is used when a number is multiplying an addition or subtraction. Simply multiply each term separately and add or subtract the result. We distribute the multiplication of the 2, to the 8 and to the 3.

Proving the mistake:

[tex](x - 2)(3x + 4) \\= (X)(3x) + (-2)(3x) + (x)(4) + (2)(4)\\and not\\(x-2)(3x) + (x + 2)(4)[/tex]

See more about distributive at brainly.com/question/14926605

Answer:

Step-by-step explanation:

1/6

1/2 ÷ 3

1/2 × 1/3

1/6

Answer:

2 10/16 or 2 5/8

Step-by-step explanation:

You can add the whole numbers first, so 1+1=2

Now add the remaining fractions: 5/16 +5/16=10/16.

2+10/16=2 10/16 or 2 5/8.

Answer:

DD

Step-by-step explanation:

Answer:

The equation to find [tex]x[/tex] is [tex](5\cdot x - 2)^{\circ} + (2\cdot x -2)^{\circ} + x^{\circ} = 180^{\circ}[/tex].

The degree measure of each angle is: [tex]m\angle J = 113^{\circ}[/tex], [tex]m\angle K = 44^{\circ}[/tex] and [tex]m\angle L = 23^{\circ}[/tex].

Step-by-step explanation:

From Euclidean Geometry we remember that the sum of internal angles in triangles equals 180°. If we know that [tex]m\angle J = (5\cdot x -2)^{\circ}[/tex], [tex]m \angle K = (2\cdot x - 2)^{\circ}[/tex] and [tex]m\angle L = x^{\circ}[/tex], then we construct the following equation of the triangle JKL in function of [tex]x[/tex]:

[tex]m\angle J + m\angle K + m\angle L = 180^{\circ}[/tex] (1)

[tex](5\cdot x - 2)^{\circ} + (2\cdot x -2)^{\circ} + x^{\circ} = 180^{\circ}[/tex]

[tex]8\cdot x -4 = 180^{\circ}[/tex]

[tex]8\cdot x = 184[/tex]

[tex]x = 23[/tex]

Finally, the measure of each angle is, respectively:

[tex]m\angle J = (5\cdot x -2)^{\circ}[/tex]

[tex]m\angle J = 113^{\circ}[/tex]

[tex]m \angle K = (2\cdot x - 2)^{\circ}[/tex]

[tex]m\angle K = 44^{\circ}[/tex]

[tex]m\angle L = x^{\circ}[/tex]

[tex]m\angle L = 23^{\circ}[/tex]

Answer:

V= 18 in^3

Step-by-step explanation:

Volume = length x width x height

V = 2 x 2 and 1/4 x 4

V = 8 x 2 and 1/4

V = 32/4 x 9/4

V = 18 in^3

Answer:

18in^3

Step-by-step explanation:

2in x2 1/4 in x4 in=

2x9/4x4=18in^3

Answer:

Yes, since there are no other values in the bracket, the squared is only targeting -2. (Brainiest?)

Step-by-step explanation:

:)

35, 36, 37, 38, 39 the mean is 37 the median is also 37

Answer:

-21x-7

Step-by-step explanation:

Answer:

For a volume of 60 ounces, the appropriate price is $16

Step-by-step explanation:

Firstly, we need to determine the relationship between volume of popcorn and the price of bag.

Let us try and see if there is a linear relationship

A linear model is of the form ;

y = mx + b

where m is the slope and b is the y intercept

While the price represents the y axis values, the volume represents the x axis values

For the slope;

m = (y2-y1)/(x2-x1)

m = (13.6-11)/(48-35) = 2.6/13 = 0.2

So we have the slope value as 0.2

the equation is;

y = 0.2x + b

to get b, substitute any value of (x,y)

6 = 0.2(10) + b

6 = 2 + b

b = 6-2 = 4

If we had substituted (20,8)

8 = 0.2(20) + b

8 = 4 + b

b = 4

if (48,13.6)

13.6 = 48(0.2) + b

13.6 = 9.6 + b

b = 13.6-9.6

b = 4

Hence we have established linear relationship between the volume in ounces and the price in $

So we have this as

Price = 0.2(volume) + 4

So for volume of 60 ounces;

Price = 0.2(60) + 4

price = 12 + 4

price = $16

The reason why this is appropriate is because it follows the rule of the established linear relationship

Answer:

$16

Step-by-step explanation:

The expressions that is equivalent to 3x - 5 are 2x - 4-1 + x and 3x+(-5)

From the given information, we need to calculate the expression that is equivalent to 3x - 5.

For the expression  2x - 4 - 1 + x

For the expression -x + x + x-1-1-1-1-1

2x - 5

For the expression 3x+(-5)

= 3x - 5

Hence the expressions that is equivalent to 3x - 5 are 2x - 4-1 + x and 3x+(-5)

Learn more on expressions here: https://brainly.com/question/25968875

Answer:

x=6

Step-by-step explanation:

Solve for x:

5 (2 x - 8) - 15 = 5

5 (2 x - 8) = 10 x - 40:

10 x - 40 - 15 = 5

Grouping like terms, 10 x - 40 - 15 = 10 x + (-40 - 15):

10 x + (-40 - 15) = 5

-40 - 15 = -55:

10 x + -55 = 5

Add 55 to both sides:

10 x + (55 - 55) = 55 + 5

55 - 55 = 0:

10 x = 5 + 55

5 + 55 = 60:

10 x = 60

Divide both sides of 10 x = 60 by 10:

(10 x)/10 = 60/10

10/10 = 1:

x = 60/10

The gcd of 60 and 10 is 10, so 60/10 = (10×6)/(10×1) = 10/10×6 = 6:

Answer: |

| x = 6

Answer:

I think the surface area is 382.

Answer:

C

Step-by-step explanation:

50

52

53

56

We have the 5 at the stem, so we need 0, 2, 3, and 6 at the leaf.

Answer:

a = 60km

Step-by-step explanation:

Pythagorean theorem: a² + b² = c²

a² + 32² = 68²

a² + 1024 = 4624

*subtract 1024 from both sides to isolate a² *

a² + 1024 - 1024 = 4624 - 1024

a² = 3600

*square root both sides to isolate a*

√(a²) = √3600

a = 60km

Answer:

trapezoid

Step-by-step explanation:

Answer:

trapezoid

Step-by-step explanation:

all the other shapes are basically squares that's only different one

Answer:

Step-by-step explanation:

28 students all give $128

so,

[tex]\sqrt[28]{128}[/tex]= v  v=6

Each student gave 6 dollars. This is true due to the fact that

[tex]\sqrt[28]{128}[/tex]=6

28X6=128

Answer:

y = x + 4

Step-by-step explanation:

slope = 1

b = 4

Answer:

1962/18=109.

Division sign

Step-by-step explanation:

Answer:

1962 ÷ 18

Step-by-step explanation:

i answered in the comments before the other person

oh well

dum bots taking up answers

Answer:

3.594417e+19

Step-by-step explanation: