Element X is a radioactive isotope such that its mass decreases by 67% every year. If
an experiment starts out with 740 grams of Element X, write a function to represent
the mass of the sample after t years, where the daily rate of change can be found
from a constant in the function. Round all coefficients in the function to four decimal
places. Also, determine the percentage rate of change per day, to the nearest
hundredth of a percent.

Answer:

Option C

g/9

Step-by-step explanation:

g ÷ 9

[tex] = \frac{g}{9} [/tex]

Answer: b

Step-by-step explanation: step  step

What is the question?

Answer:

reflect over what axis y or x?

Answer:

80+5x

please mark me brainliest

Step-by-step explanation:

Answer:

Step-by-step explanation:

P(BB)=(4/10)(3/9)

P(BB)=12/90

P(BB)=2/15

The y-intercept is -6

It opens down.

Answer: irdk the awnser but F on that tumor

Answer:

0.08

Step-by-step explanation:

If u do the math or put it in the calculator u should get 0.08

Answer:

[tex]h = 3544.83km[/tex]

Step-by-step explanation:

Given

[tex]P= 760 - 0.145h[/tex]

Required

Find h when P = 246

Substitute 246 for P

[tex]246= 760 - 0.145h[/tex]

Collect like terms

[tex]246- 760 = - 0.145h[/tex]

[tex]-514= - 0.145h[/tex]

Make h the subject

[tex]h = \frac{-514}{-0.145}[/tex]

[tex]h = 3544.83km[/tex]

Answer:

C. 3 to 18, 5 to 30 is equal

Step-by-step explanation:

Given:

The sequence is:

12, 6, 3, ...

To find:

The formula for the nth term of the given sequence.

Solution:

We have,

12, 6, 3, ...

Here, first term is 12.

Clearly, [tex]\dfrac{6}{12}=\dfrac{3}{6}[/tex]. Since the given sequence has a common ratio [tex]r=dfrac{1}{2}[/tex], therefore it is a geometric sequence.

The formula for the nth term of the given sequence is:

[tex]a_n=ar^{n-1}[/tex]

Where, a is the first term and r is the common ratio.

[tex]a_n=12\left(\dfrac{1}{2}\right)^{n-1}[/tex]

Therefore, the formula for the nth term of the given sequence is [tex]a_n=12\left(\dfrac{1}{2}\right)^{n-1}[/tex].

Answer:

Step-by-step explanation:

Answer:

$12

Step-by-step explanation:

Answer:

$12

Step-by-step explanation:

30/100 = X/40

X/40 = 30/100

X*40/40 = 30*40/100

X = 1200/100

X = 12

Answer:

1606588.92

Step-by-step explanation:

the equation for volume of sphere is 4/3 x π x r^3

so just put the numbers in

4/3 x π x 6^3

= 288 π cm^3

Answer:

The volume of a sphere is given as

4/3 πr^3

There is only one variable, the radius, which we are given in the problem.

since the radius is 6 cm, we can plug that in to the formula

4/3 π6^3

Put this into the calculator, and we see that the volume is 904.8cm rounded to the nearest tenth.

Step-by-step explanation:

Hope it is helpful....

Answer:

El número 34 en numerología simboliza optimismo, espiritualidad, análisis, autoexpresión, introspección, pragmatismo. Si el número 34 es el número de tu destino, lo más probable es que seas una persona muy espiritual, sabia e intuitiva.

Step-by-step explanation:

Answer:

-2x -8-10y

Step-by-step explanation:

-2 (x + 4 + 5y)

distribute

-2x -8-10y

Answer:

51. / 13.7

54. / 17.85

29. / 5.15

Step-by-step explanation:

How old are you?

Answer:

The original cable was 5.15 m long.

51: $13.70

53: $16.50

54: $17.85

55: 4.4 miles

56: $49.35

Step-by-step explanation:

The answer to the first question (the one about the cables): So you would solve it by adding the lengths of the cable together.

Cut off piece: 1.65 m       Remaining cable: 3.5 m

To find the original length, we need to add the cut off piece and the remaining cable together.

1.65+3.5= 5.15

The original cable was 5.15 m long.

Answer: Team B, 8N

Step-by-step explanation: I think it's team be because when doing the problem team a is 24 n to the right while Team B is 32 n to the left, and since they are pointing different directions you would subtract those and then get your answer. Since Team B has the larger force it will be the one to win.

Answer: 10 cats

Step-by-step explanation:

3/2

15/x

3*5=15

2*5=10

3/2=15/10

Answer:

20

Step-by-step explanation:

20

Answer:

x=24.1

Step-by-step explanation:

soh cah toa

cos(24°)=22/x

cos(24)= 0.9135

0.9135=22/x

0.9135x=22

x=22/0.9135

x=24.1

Answer:

24.1

Step-by-step explanation:

By sine rule:

[tex] \frac{ x}{\sin 90 \degree} = \frac{22}{\sin (90 - 24)\degree} \\ \\ \frac{x}{1} = \frac{22}{ \sin 66 \degree} \\ \\ x =24.081998127 \\ \\ x \approx 24.1[/tex]

Answer:

C

Step-by-step explanation:

duh

Answer: yw

1 4/5

Step-by-step explanation:

Which of the following inequalities matches the graph?

Looking at the graph the y values does not change, it stays at zero

The shaded area are the numbers under O

This means the answer is y ≤ 0

Hope it helps

-------☆ﾟ.･｡ﾟᵴɒƙυᴚᴀ_ƨȶäᴎ❀

Answer:

d.

Brand C, Brand A, Brand B

Step-by-step explanation:

To find the unit price, we divide the price by the number of pounds.

Brand A: $1.48 for 2.5 pounds

Unit price of:

[tex]\frac{1.48}{2.5} = 0.592[/tex]

Brand B: $1.30 for 907.18 grams; 1 pound is approximately 453.59 grams

907.18/453.59 = 2 pounds

Unit price of:

[tex]\frac{1.3}{2} = 0.65[/tex]

Brand C: $1.55 for 50 ounces; 1 pound is equal to 16 ounces

50/16 = 3.125 pounds

Unit price of:

[tex]\frac{1.55}{3.125} = 0.496[/tex]

From lowest to highest unit price:

C, A and B, so option d.

Answer:

D

Step-by-step explanation:

Unit prices are ratios, so you can add the two prices together and divide by the smaller unit price to get a usable number.

y values: 3,4,5,6

x values: 5,10,15,20

Step-by-step explanation:

I used a graphing calculator but y is increasing by one and x increases by 5 each time

Answer:

See below.

Step-by-step explanation:

A's number is x. B's number is y.

x = 5y - 10

First row: What is x when y= 3?

                             x = 5y - 10 = 5*3 - 10 = 15 - 10 = 5; x = 5

Second row: What is x when y = 4?

                             x = 5y - 10 = 5*4 - 10 = 20 - 10 = 10; x = 10

Third row:      What is y when x = 15?

                             x = 5y - 10

  Add 10 both sides     x + 10 = 5y - 10 +10

                                      x + 10 = 5y

But we're told x = 15, so   15 + 10 = 5y

                                             25 = 5y

Divide both sides by 5         25/5 = 5y/5

                                                  5 = y                      y = 5

Fourth row: What is x when y = 6?

                                        x = 5y - 10 = 5*6 - 10 = 30 - 10 = 20; x = 20

Answer:

% increase

Step-by-step explanation:

80(1.15) = 92

Answer:

314 yd²

Step-by-step explanation:

A = πr²

 Use the formula.

A = π(10)²

 Substitute. Use 10 for r.

A ≈ 3.14 × 10²

 Substitute. Use 3.14 for π.

A ≈ 3.14 × 100 Evaluate the power.

A ≈ 314 Multiply.

The area of the circle is about 314 yd².

Answer:

The line cannot be extended to any point since we are trying to graph a zero that is equivalent to absolutely nothing

Step-by-step explanation:

choose as brainliest