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

Angle ACB and angle ECD are
angles.
vertical
complementary
supplementary
none of the above

Answers

Answer:

vertical

Step-by-step explanation:

When two lines intersect, 4 angles are formed. Two non-adjacent angles are called vertical angles.

Answer: vertical

Answer:

Vertical

Step-by-step explanation:

Just did the lesson and checked the answer key :D

find the surface area to the nearest tenth

Answers

the area of the square in the bottom, 11*11=121
find area of the triangles, (11*12.3)/2
11*12.3=135.3
135.3/2=67.65<--- area of the triangle
67.65*4=270.6
aka. just adding the areas of the triangles up
67.65+67.65+67.65+67.65=270.6
121+270.6=391.6

391.6 !

Heather paid $37.50 for a pizza to be delivered to her house. She had a coupon for 30% off and
there is a tax of 8%. What was the total cost of the pizza to be delivered?

Answers

Answer:

The original cost of the pizza before the discount coupon and the tax was $49.28.

Step-by-step explanation:

Given that Heather paid $ 37.50 for a pizza to be delivered to her house, and she had a coupon for 30% off and there is a tax of 8%, to determine what was the total cost of the pizza to be delivered, the following calculation has to be done:

100 - 8 = 92

100 = 37.50

92 = X

92 x 37.50 / 100 = X

34.50 = X

100 - 30 = 70

70 = 34.50

100 = X

100 x 34.50 / 70 = X

49.28 = X

Thus, the original cost of the pizza before the discount coupon and the tax was $ 49.28.

Becky,Markus, and Hallie each earned $2.15 raking leaves.how much did they earn together?

Answers

Answer:

4.3

Step-by-step explanation:

2.15 times 2 is 4.3

Answer:

6.45

Step-by-step explanation:

well ot would be 2.15x3 i hope this is correct and helps you

1

2.15

x. 3

----------

6.45

What is the equation of the line that best fits the given data? A graph has points (negative 3, negative 3), (negative 2, negative 2), (1, 1.5), (2, 2), (3, 3), (4, 4). a. y = 2 x + 1 c. y = x + 1 b. y = x d. y = negative x Please select the best answer from the choices provided A B C D

Answers

Answer:

it's B on edge

Step-by-step explanation:

I took one for the team

Answer:

Step-by-step explanation:

6-4x+6(x-2) solve for x

Answers

6-4x+6x-12=0

2x-6=0

X= 3

Answer:

x=3

Step-by-step explanation:

6-4x+6(x-2)

6-4x+6x-12

-4x+6x=12-6

2x=6

x=3

____ + g − g = k
help

Answers

Answer: umm it k

Step-by-step explanation: k+g-g=k

g-g=0

k=k

Jim qualifies for $0 down payment but makes a $2,500 down payment on his car purchases anyway. Will this payment help or hurt him

Answers

Answer:

help him

Step-by-step explanation:

Paying a $2,500 down payment on an automobile would normally benefit Jim. He reduces the total amount of the loan for the vehicle he will need to take out by making a down payment, which reduces the cost of his monthly payments and the amount of interest he will have to pay over the life of the loan. Furthermore, having a down payment increases his chances of getting approved for a loan or receiving a cheaper interest rate.

What is Down payment?

A down payment is an upfront cash payment made when purchasing a significant ticket item like a car or a house. The down payment is often a proportion of the total cost of ownership and is made in order to lower the amount of financing required. Lower monthly payments or a shorter loan term are sometimes the outcome of a higher down payment.

A down payment is an initial up-front payment in part for the purchase of a large item or service, such as a car or a house. It is normally paid in cash or in the form of an equivalent at the time the transaction is completed. The balance of the payment is then financed by a loan of some kind.

Therefore, paying a $2,500 down payment on an automobile would normally benefit Jim.

Learn more about Down payment, here:

https://brainly.com/question/29397199

#SPJ2

Which are the points labeled to show the solution to the system of the equations?

Answers

Answer:

C

Step-by-step explanation:

It is where the two lines intersect, which is the answer

Answer: C

Step-by-step explanation: Point C is where the two lines intersect. This means there is a point where both x's share a value and both y's share a value.

Find the area of the garden.

Answers

Answer:

28yd²

Step-by-step explanation:

area of square = side *side

=6*6= 36²

area of rectangle (patio)= length* breadth

=4*2=8²

area of garden= area of square - area of rectangle

=36-8

=28 yd²

Answer:

28 sq. yd

Step-by-step explanation:

For finding the area of the garden :

First Case:

Given,

Side of the big square = 6 yd

Therefore,

Area of the big square = side × side

= 6yd × 6yd

[tex] = 36 {yd}^{2} [/tex]

Second Case:

Length of the patio = 4 yd

Breadth of the patio = 2 yd

Therefore,

Area of the patio = Length × Breadth

= 4yd × 2yd

[tex] = 8 {yd}^{2} [/tex]

Last Case:

According to first and second cases,

Area of the garden

= Area of the big square - Area of the patio

[tex] = 36 {yd}^{2} - 8 {yd}^{2} [/tex]

[tex] = 28 {yd}^{2} [/tex]

Hence,

Required area of the garden is 28 sq. yd (Ans)

Pls help me complet this

Answers

Answer: The number of times a blue cube will be drawn is 395 times.

Step-by-step explanation: So since the original amount a blue cube got drawn is 79 and they did it 240 times, we can set up a ratio.

79/240  = x/1200

We use 1200 since the question asks us how many times a blue cube will be drawn if they did the experiment 1200 times. To solve x, multiply 1200 and 79 and you get 94,800. Then divide that by 240, which is 395. Therefore it will get drawn 395 times.

Hope this helps.

Find the equation (in terms of x) of the line through the points (-2,-4) and (2,8) y=

Answers

Answer:

y = 3x + 2

Step-by-step explanation:

Determine the value of A, the NET salary received by Mr Makatle for
1.3 Show how the UIF contribution of R82.36 was calculated.
1.4 Mr Makatle claims that the cumulative medical and contributions indicate on teza
advice is incorrect. Verily using calculations, whether is claim is valid
5 Calculate his monthly tax contribution as a percentage of his gross szias-
UESTION 2
Danielle is a 48-year-old female who works for MK Designs. She eares a trasie by
FR45 600,50 and an annual bonus equal to her basic monthly salary. Her sa
come for the 2018/2019 tax year is made up of her basic monthly salary on
Ons​

Answers

Answer:

hfgf td utdu6kjyyyudytdcyu6   vfhdutd,ld

Step-by-step explanation:

1. The value of A, the Net Salary received by Mr. Makatle is R 5,369.49 (R8,236,00 - R 2 866,51), which is the gross pay minus total deductions.

2. The UIF contribution of R82.36 was calculated as 1% of R8236,00 (R 8,236 x 1%).

3. Mr. Makatle's claims that the cumulative medical contributions indicated on his pay advice are incorrect are valid.

The cumulative medical contributions for the year are supposed to total R 17,640 (R 1 764,00 x 10) instead of R 6,177.00, which represents the pension's cumulative contributions.

4. Mr. Makatle's monthly tax contribution as a percentage of his gross salary is 4.8865%.

Tax contribution = R 402.45

Gross monthly salary = R 8 236

Percentage of tax contribution to gross salary = 4.8865% (R402.45/R8,236 x 100)

5. For question 2, we can use the rates computed from Mr. Makate's salary advice to calculate Danielle's net pay for the year.

Danielle's Net Pay:

Basic Salary                        FR 45 600,50

PAYE                                        R 2,228.27 (4.8865%)

UIF                                               R 456.01 (1%)

Pension Fund                        R 3 420. 04 (7.5%)

Medical Aid contribution        R 9,766.72  (21.418%)

TOTAL DEDUCTIONS           R 15,871.04

NET SALARY                       R 29,729.46

What is net pay?

The net pay is the difference between a salary earner's gross income and the deductions made before the payment of salary.

The net pay represents the amount that the salary earner goes home with.

The net pay is also known as the take-home pay.

Question Completion:

Mr. Paul Makatle is an employee at a clothing factory The following deductions are made from his gross monthly salary:

• 7,5% of his gross monthly salary for pension fund contributions

• UIF (Unemployment Insurance Fund) of 1% of his gross monthly salary

• PAYE (Pay as you earn) tax as per tax bracket

Use the salary advice below that Mr. Makatle receives for December 2020 to answer the questions that follow.

Basic Salary                        R 8 236,00

PAYE                                      R 402.45 (4.8865%)

UIF                                           R 82,36 (1%)

Pension Fund                        R 617,70 (7.5%)

Medical Aid contribution  R 1 764,00  (21.418%)

TOTAL DEDUCTIONS     R 2 866,51

NET SALARY                   R 5 369,49

GROSS SALARY IRP5 PARTICULARS-cumulative year to date:

R 82360,00

Total Employee's Tax R 6177.00

Medical Aid contr R 6,177.00

Question 1 Requirements:

1. Determine the value of A, the NET salary received by Mr. Makatle

2. Show how the UIF contribution of R82.36 was calculated.

3. Mr. Makatle claims that the cumulative medical contributions indicated on his pay advice are incorrect. Verify, using calculations, whether his claim is valid

4. Calculate his monthly tax contribution as a percentage of his gross salary.

5. Calculate Danielle's net pay for the year, using Makatle's pay advice.

Learn more about gross and net salaries at https://brainly.com/question/25267964

helpppppppppppppppppppp

Answers

Answer:

c

Step-by-step explanation:

The answer is c). X>-5

A hotel room costs $435.92 for 4 nights. At the same rate, how much would it cost to rent the hotel room for 7 nights?

Answers

Answer:

basBdiqdia

Step-by-step explanation:

Answer:

$762.86

Step-by-step explanation:

$435.92/4 = $108.98

$108.98 · 7 = $762.86

Will give brainliest and 50 points

Find the area of this triangle.
Round to the nearest tenth.
7 m
125°
14 m
[?] m2

Answers

Answer

40.1

Area of a triangle using sine rule = 1/2 a b sinC

a and b are the two known sides, sinC is the angle opposite the unknown side

1/2 x 14 x 7 sin(125) = 40.1 to the nearest tenth

Hope this helps

Answer:

40.1

Step-by-step explanation:

Alright I’m not smart please help

Answers

Answer:

98 sq. in.

Step-by-step explanation:

Area of Triangle formula : 1/2 x Base x Height

1/2 x 14 x 14 =98

From Question 10c, What is DC_{3,1}DC
3,1

Answers

DC₃₁ is the entry of the product DC in row 3, column 1, which you get by computing the dot product of the 3rd row of D and the 1st column of C :

{3, -2} • {1, 4} = 3×1 + (-2)×4 = 3 - 8 = -5

Mrs. DeMarco wants to estimate the height of her garage
oor. Select the best benchmark for her to use.
the width of a paperclip
the length of a baseball bat
the height of a license plate
how far she can walk in 20 minutes

Answers

Answer:

length of baseball bat.

Step-by-step explanation:

she can measure the bat and times by how many times she could fit the bat there u know

Eric starts with 10 milligrams of a radioactive substance. The amount of the substance
decreases by 1 ¿ each week for a number of weeks, w. He writes the expression
10)" to find the amount of radioactive substance remaining after w weeks.
Andrea starts with 1 milligram of a radioactive substance. The amount of the
substance decreases by 20% each week for a number of weeks, w. She writes the
expression (1
0.2)" to find the amount of radioactive substance remaining after W
weeks.
Use the drop-down menus to explain what each part of Eric's and Andrea's
expressions mean.

Answers

Answer:

ok m

Step-by-step explanation:

ok

Answer:

Step-by-step explanation:

A recipe for oatmeal which serves 4 people uses 3 cups of rolled oats.
How many cups of rolled oats will be used for oatmeal which serves 6 people?
O A. 2 cups
OB. 2 cups
Oc. 4 41
cups
D. 5 cups
o
E. 8 cups

Answers

The 4.5 or 4 whole number 1/2 cups of rolled oats will be used for oatmeal which serves 6 people option (C) is correct.

What is a fraction?

Fraction number consists of two parts one is the top of the fraction number which is called the numerator and the second is the bottom of the fraction number which is called the denominator.

We have:

A recipe for oatmeal that serves 4 people uses 3 cups of rolled oats.

Let's suppose the x number of cups will be used to serve 6 people.

Mathematically,

4 people use 3 cups

6 people use x cups. then:

[tex]\frac{4}{6} =\frac{3}{x}[/tex]

4x = 6×3  (after cross multiplication)

4x = 18

x = 4.5   (divide by 4 on both sides)

[tex]\rm x=4\frac{1}{2}[/tex]

Thus, the 4.5 or 4 whole number 1/2 cups of rolled oats will be used for oatmeal which serves 6 people option (C) is correct.

Learn more about the fraction here:

brainly.com/question/1301963

NEED HELP ASAP FREE BRAINLIST

Answers

Answer:

the correct answer is 904.78 cubic. inches

PLEASE HELP I WILL MARK YOU BRAINIEST

Answers

Answer:

The answer is (D) y < 4

Answer:

D. y < 4 im pretty sure sorry if its wrong..

Please help! Thanks! The midpoint between y and 33 is -7. Find y

Answers

Answer: 32

Step-by-step explanation: hope this helps

There are 20 houses on Rainbow Street. 45% of the houses have holiday decorations in their yard. How many houses have decorations?

Answers

Answer:9

Step-by-step explanation:

Sally is planning the school picnic and needs to decide what food vendor to
use. She asks 500 students whether they would rather have a taco truck or a
fruit smoothie cart. The results of the survey are shown in the table.
Taco truck Fruit smoothies Total
17
250
Eighth-graders 233
Ninth-graders 240
10
250
Total
473
27
500
What is the relative frequency of eighth-graders who want fruit smoothies?
O A. 0.03
OB. 0.02
O C. 0.48
O D. 0.17

Answers

Answer:0.03

Step-by-step explanation:

Answer:

0.03

Step-by-step explanation:

Susan knows that the coordinates of the center of a circle and a point on the circle are (-3, 2) and (10, -2), but she can't remember which coordinate pair is which. What could be an equation of the circle? Explain your answer.

Answers

9514 1404 393

Answer:

  (x +3)² +(y -2)² = 185

  (x -10)² +(y +2)² = 185

Step-by-step explanation:

One possible equation comes from using one of the points as center. The other possible equation comes from using the other point as center.

The radius can be found from the distance formula:

  r² = (x2-x1)² +(y2-y1)² = (10-(-3))² +(2-(-2))² = 169 +16 = 185

The circle formula is ...

  (x -h)² +(y -k)² = r² . . . . . . for center (h, k) and radius r

The above equations and the ones shown in the attachment are possibilities.

How many integers between 0 and 500:

1. Have distinct digits?

2. Are divisible by 3?

3. Are divisible by 3 or 5?

4. Are divisible by either 3 or 5, but not both?

5. Are divisible by 3, but not 5?


Pls help asap!!

Answers

Answer:

4

Step-by-step explanation:

they are divisible by either 3 or 5 but not both of these numbers

Answer:

378

Step-by-step explanation:

1 digit numbers - 9

2 digit numbers - 90

Now, subtract the repeating numbers 90-9 = 81

3 digit numbers = 4*9*8 = 288  

Distinct numbers = 9+81+288 = 378 numbers

What is the shape of the cross-section formed when a cone intersects a plane as shown in the drawing

Answers

Answer:

triangle

Step-by-step explanation:

only look at the cut off part

Answer:

I believe that the shape is formed to be a circle

Seth needs to buy mulch to cover a circular garden. The garden has a radius of 5ft. Mulch costs $0.25 per square foot. How much will it cost Seth to cover his garden in mulch?

Answers

Answer:

?????

Step-by-step explanation:

12x 0.25=?          ?x 5= $?

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Suppose that a project has a depreciable investment of $1,000,000 and falls under the following MACRS year 5 class depreciation schedule: year 1: 20 percent; year 2: 32 percent; year 3: 19.2 percent; year 4: 11.5 percent; year 5: 11.5 percent; and year 6: 5.8 percent. Calculate the depreciation tax shield for year 2 using a tax rate of 30 percent. the population of planet is approximately 280,000 in 2006. Plano is growing 7% per year. What is the population inn 2010? YOUR ANSWER SHOULD BE A WHILE NUMBER!! Help ASAP please!!!!! What are preventable, potentially harmful influences on brain development during the prenatal stage? Select all that apply.inheritance of a diseaseexposure to chemicalsdisorders in chromosomesmalnutrition of the mother HURRY PLEASE ANSWER BOTH, will give 10 points What are the five classes of objects that orbit the sun? Can someone pls help due today !! ill give brainliest (worth 15 pts) Do you think that demobilization is something that is needed today in a time when American troops are deployed throughout the world in various military efforts to maintain peace and stability in turbulent regions? Complete the equation Help me please I have an f in this class I will give you 44 points Solve for the area of the smallershape.Round to the nearest TENTH. What is the value of x in the figure below? Find the Mean of the following set of data. (Round to thenearest hundredths place.)1, 1, 3, 0, 7, 2,0,3, 1, 6, 8, 1 PLEASE HELP ASAP I WILL MARK BRAINLIST Which change is an environmental effect of building dams?increased land fertility downstreamsoil erosion upstream weed growth downstreamdecreased water temperature upstream if Eli Whitney knew creating the cotton gin would increase slavery in the united states do you think he would still have created it? NEED HELP ASAP!!! what is the difference between annexation and a sphere of influence? The 1992 United Nations Earth Summit was held in _______________________. Help will mark brainliest show steps pls Help please Read the following paragraph:"Memory is created in one portion of the brain and then stored in another. The transfer is not a consistent process, especially in thepresence of stress and fear. Often some parts of a traumatic event are recorded in great detail while others are fuzzy or lost completely. Indangerous or emotionally difficult circumstances, it's not uncommon for the brain to more or less turn off recording as the situation goeson."What is the implied main idea of this reading?O People often have gaps in their memory due to stress and fear.People forget what they don't want to remember.O Traumatic memories are usually wrong.The brain is complicated.