A 15-g sample of radioactive iodine decays in such a way that the mass remaining after t days is given by
m(t) = 15e−0.055t,
where
m(t)
is measured in grams. After how many days is there only 1 g remaining? (Round your answer to the nearest whole number.)

Answers

Answer 1

Answer:

Step-by-step explanation:

SHUIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIT


Related Questions

Solve if you want cookie!

Answers

Step-by-step explanation:

[tex]y = 2x \: \: \: \: x + y = 6 \\ y = 2x \: \: \: \: x = 6 - y \\ y = 2(6 - y) \: \: \: \: x = 6 - y \\ 3y = 12 \: \: \: \: x = 6 - y \\ y = 4 \: \: \: \: x = 2[/tex]

Gimme tha cookie

Invent measurements that would show triangle XYZ is similar to triangle NLM using the Side-Angle-Side Triangle Similarity Theorem.

Answers

Answer:

The answer is that when you put the LMN. You can rotate it. Then we know it is similar.

Using the rotation method of the triangle LMN show triangle XYZ is similar to triangle NLM using the Side-Angle-Side Triangle Similarity Theorem.

What is the similarity law for triangles?

It is necessary to demonstrate compliance with the law to establish that two triangles are identical in both shape and size. The angles that correspond to those sides have the same congruence and the same ratio of sides.

It is given that the two triangles are triangle XYZ and triangle NLM.

Two triangles are said to be comparable if the ratio of one triangle's two sides to the two sides of another triangle is the same, and the angles that the two sides of both triangles inscribe are equal.

Thus, triangle XYZ is similar to triangle NLM using the Side-Angle-Side Triangle Similarity Theorem.

Learn more about the similarity of triangles here:

brainly.com/question/8045819

#SPJ2

A scale drawing of an NFL god post uses a
scale of 2 inches = 5 feet. If the actual width
of the goal post is 182 feet, what is the width
of the goal post on the drawing?

Answers

It would be 455 inches because you divide 5/2 and it is 2.5 then you multiply it by 182 which is 455

find the equation of the line use exact numbers

Answers

Answer:

y = -³/2x + 3

Step-by-step explanation:

To find the equation of the line in slope-intercept form, y = mx + b, we need to finder the slope (m) and the y-intercept (b).

✔️Slope (m) = ∆y/∆x

Using two points on the line, (0, 3) and (2, 0),

Slope = (0 - 3)/(2 - 0) = -3/2

Slope (m) = -³/2

✔️y-intercept (b) = 3 (this is the y-cooordinate of the point where the line intercepts the y-axis)

✔️To write the equation, substitute m = -³/2 and b = 3 into y = mx + b

This:

y = -³/2x + 3

29. The table shows the average annual salary in dollars based on the minimum level of education required for two occupations. Based on the average annual salaries in the table, how much more would an accountant eam than a tax preparer over a 30 year career? Occupations Occupation Average Annual Salary (dollars) Level of Education Required Accountant 71,040 41,700 Bachelor's degree High school diploma Tax preparer A $112,740 B. $3,382,200 C. $880,200 D. $1,251,000​

Answers

Answer:

c. 880,200

Step-by-step explanation:

ur welcome

How many 4 digit numbers are multiples of 8?

Answers

Answer:

The multiples of 8 are 8,16,24,32,40,48,56,64,72,80,88,96,104,112,120,128,136,144,152,160,168,176,184,192,200,208 and so on. Any number that can be denoted in the form 8n where n is a natural number is a multiple of 8.

Ryan has 4 rap songs, 8 country songs, and 2 rock songs.  what is the probability of Ryan picking a rock song or a Pop song

Answers

Answer:

Step-by-step explanation:

Total songs = 8 + 4 + 2 = 14 songs

number of rock songs = 2

Number of rap songs = 4

Probability of rock songs = 2/14 = 1/7

Probability of rap songs = 4/14 = 2/7

Aiden calculated that their family used 20% of their monthly income for food, and 15% of the money spent on food was spent on snacks. If they spent $45 on snacks, what is their monthly income?

Answers

Answer:

There monthly income is 300$

Brainlest and points !! Picture included

Answers

Itssssssss 30 have a nice day

Solve each proportion 3/39= y/13

Answers

Answer:

[tex]y = 1[/tex]

Step-by-step explanation:

[tex] \frac{3}{39} = \frac{y}{13} [/tex]

Cross multiply

[tex]39 = 39y[/tex]

Divide by 39

[tex]y = 1[/tex]

Answer:

[tex]\boxed {\boxed {\sf y=1}}[/tex]

Step-by-step explanation:

To solve the proportion, we must solve for the variable. This is done by isolating the variable.

[tex]\frac {3}{39}= \frac {y}{13}[/tex]

The variable, y, is being divided by 13. The inverse of division is multiplication. Multiply both sides of the proportion by 13.

[tex]13*\frac {3}{39}= \frac {y}{13}*13[/tex]

[tex]13*\frac {3}{39}=y\\1=y[/tex]

Another way to solve is by cross multiplying. Multiply the 1st numerator by the 2nd denominator, then the 1st denominator and the 2nd numerator.

[tex]\frac {3}{39}= \frac {y}{13}[/tex]

[tex]3*13=39*y\\39=39y[/tex]

Divide both sides by 39 to isolate the variable.

[tex]39/39=39y/39 \\1=y[/tex]

In this proportion, y is equal to 1.

377?.378f5885246799448855

Answers

Answer:

Wwhatwhatwhatwhatwhat

Step-by-step explanation:

Answer:

What?

Step-by-step explanation:

You must have smacked your keyboard

377?.378f5885246799448855

When solving a quadratic using factoring, does it matter if the first x solution is on the left or right side? And same for the second x? In the answer

Answers

Answer:

it is either way, you can put x on the left side or the right side. Just make sure your signs are correct

can someone help me please.

don't send any link
or ill report you!!!​

Answers

Answer: 25 square units

You can divide the shape off into manageable chunks then multiply to find the answer!

Jayda is watching a movie that lasts 1 hour and 37 minutes. She has watched 52 minutes so far. How many minutes are left in the movie? *

Answers

Answer:

45 minutes

Step-by-step explanation:

97-52 = 45


helppppppppppppppppppppppppp

Answers

Your answer is 40mm

3+12+12+13
=40

Answer:

The perimeter of this figure is 40 milimeters.

Step-by-step explanation:

Add all sides' lengths:

3+ 12 + 12+ 13 = 40

Tarzan leaned a 100-foot ladder against the side of a building. The
hase of the ladder is 18 feet from the base of the building. The top of
the ladder is 16 feet from the top of the building How tall, to the
narest tenth of a foot, is the building?
16
100
18

Answers

Answer:

is 16 foot a part from the building

I will give Brainly plzzz ASAP

Answers

Answer:

Im pretty sure the answer would be 6

Step-by-step explanation:

Just take 42 and divide by 7 to get x

Answer:

did you finish this already

Martha constructs the table below to show the relationship between her cell phone's age and the amount of time it takes to charge her phone battery. Which of the following describes the rate at which the time to charge the phone changes?
A. The time to charge the phone increases by 25 minutes with every 7.5-month increase in the phone's age.
B. The time to charge the phone increases by 15 minutes with every 7.5-month increase in the phone's age.
C. The time to charge the phone increases by 25 minutes with every 1-month increase in the phone's age.
D. The time to charge the phone increases by 15 minutes with every 2-month increase in the phone's age.

Answers

Answer:

D

Step-by-step explanation:

To find the rate of increase all you have to do is take one of the data sets to see that every two months its charge time increases by 15 minutes or 7.5 minutes every month.

help me plssssssssss

Answers

9514 1404 393

Answer:

  a, c, d

Step-by-step explanation:

b is NOT equivalent, because the content of parentheses is evaluated first. That makes the expression equal to 2/15, which is not equal to the given expression.

  [tex]\dfrac{2}{(5\times 3}=\dfrac{2}{15}\ne\dfrac{2}{5}\times3=\dfrac{6}{5}[/tex]

__

Expressions (a) and (d) are exactly the same thing, written using different symbols for division. Expression (c) is the equivalent.

1) Red City is 6 cm away from Blue City on a map but the two cities are actually 240 miles
apart in real. What is the scale on the map?

Answers

You divide 240 miles by 6 cm so you can figure out how many miles are in each centimeter. So 240/6=40 miles. The scale is for every one centimeter, that is 40 miles.

Jeremiah wants to send some of his shirts to a dry cleaner. he usually takes his clothes to Spot-Less Dry cleaners, where he pays $4.50 per shirt. He sees a sign at No Mess or Stress Dry Cleaners that says it's $21.00 to have 4 shirts cleaned. Which is the better deal?

Answers

answer:spot-less

Step-by-step explanation:

21.00 divided by 4 is 5.25 so you'd be payingmore at "no mess or stress dry"

WILL MARK BRAINLY FOR WHO EVER ANSWERS THIS FIRST

Answers

Answer:

(0,1)

Step-by-step explanation:

the answer is (0,1)

please please help me i’ll give you brainliest

Answers

answer is D :)
hope it helps

The diagonals of square ABCD intersect at point E. If BE = 2x + 1, and AC = 3(6x - 4), find BD.

Answers

Answer:

Step-by-step explanation:

5

Help me I need to finish this today

Answers

Answer:

24 glasses

Step-by-step explanation:

Answer is D

1/8 x 24= 3

URGENT HELP Graph f(x) = 3|x - 5| + 1 (please put picture of the answer graphed)

Answers

Answer:

Step-by-step explanation:

I uploaded a picture of the graph, but you can go to the site, Desmos. Just plug in your equation, and you will get the equation graphed.

Are all rectangles and squares are parallelograms ?​

Answers

Answer:

A parallelogram has opposite sides parallel and equal in length. Also opposite angles are equal (angles "A" are the same, and angles "B" are the same). NOTE: Squares, Rectangles and Rhombuses are all Parallelograms!

Yes, they are.

Answer:

Yes

Step-by-step explanation:

Squares are quadrilaterals with 4 congruent sides and 4 right angles, and they also have two sets of parallel sides. Parallelograms are quadrilaterals with two sets of parallel sides. Since squares must be quadrilaterals with two sets of parallel sides, then all squares are parallelograms.

Hope it is helpful....

The Lazy River has a current of 2 miles per hour. A motorboat can travel 15 miles
down the river in the same amount of time it takes to travel 9 miles up the river.
What is the speed of the boat in still water? Please show your work and use table to
relate time, speed, distance.

Answers

Answer:

8mph

Step-by-step explanation:

I just answered the question

Solve each of the following equations show its solution set a number line your answers |5-7r| =3

Answers

Answer:

R= 2/7 or 8/7

Step-by-step explanation:

make a number line of 1/7 fraction and plot the dots

A line has a slope of 6 and a y-intercept of 9. What is its equation in slope-intercept
form?

Answers

answer: y=6x+9

explanation: y=mx+b

Answer:

y=6x+9

Step-by-step explanation:

y=mx+b where m=slope and b=y-intercept

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