I'm really stuck on this question and if anyone could help me with it I'd be so grateful

Answer:

Function: A=1.5(1+0.114)^1000

Step-by-step explanation:

1.5 is the initial amount and 0.114 in the rate and the 1000 is the time

In carbon dating, the Carbon-14 concentration decays exponentially, and can be described by a formula involving its initial concentration and decay rate. To find a fossil's age with a concentration of 0.3 ppt, we use this decay formula, solve for t (time in millennia), and calculate the fossil's age.

To determine the Carbon-14 concentration as a function of time and the age of a fossil with a concentration of 0.3 ppt, we will use the formula of exponential decay based on the half-life concept in carbon dating.

The formula for the carbon-14 concentration as a function of time (t, in millennia) is:

C(t) = C_0 × (1 - 0.114)^t

Where:

To find the age of a fossil with a measured concentration of 0.3 ppt, we solve for t in the above equation with C(t) set to 0.3 ppt:

0.3 = 1.5 × (1 - 0.114)^t

Dividing both sides by 1.5 and taking the natural logarithm:

t = ln(0.3/1.5) / ln(1 - 0.114)

Solving this gives us the age of the fossil in millennia.

Answer:

The surface area of the composite solid = 480 square feet

Step-by-step explanation: Given that the rectangular prism is of length of 10 feet, width of 10 feet, and height of 6 feet.

A square pyramid with triangular sides with a height of 7 feet.

The base of the pyramid = width of the rectangular prism.

Pyramid base = 10 feet

A pyramid has 4 triangular faces

Area of a triangle = 1/2bh

Area = 1/2 × 10 ×7 = 35 square feet

Total surface area = 35 × 4 = 140

Rectangular prism has 6 faces

But we will be calculating for 5 faces

Total surface area = 2(10×6) + 2(10×6) + (10×10)

= 120 + 120 + 100

= 340

The surface area of the composite solid = pyramid surface + rectangular prism surface

= 140 + 340

= 480 square feet

Answer:

90 or right angle

Step-by-step explanation:

Answer:

90

Step-by-step explanation:

A triangle has to have 180 degrees

so 180 - 90 = 90

Answer:

D.Cup

Step-by-step explanation:

We humans do not use the term Cup anymore. We now use things like Grams,Ounces,Gallons,Or Quarts.

so the answer is 36.

Hope this will help u...

Answer:

36 necklaces

Step-by-step explanation:

Make a proportion

12/20=x/60

Cross multiply

20x=720

Divide by 20 on both sides

x=36

So, she can make 36 necklaces in an hour

Hope this helps! :)

Answer:

3,413.841

Step-by-step explanation:

you times 628.7 by 5.43 and then you get your answer

Answer:

3413.841

Step-by-step explanation:

Answer:

It should cost $1.2 for 1 pound of apples.

Step-by-step explanation:

To find the unit rate, divide 3.60 by 3. This gives us 1.2, which shows that for every pound you would pay $1.2.

If 3 pounds of apples cost $3.60 then costs $1.20 for 1 pound of apples.

Ratio basically compares quantities, that means it show value of one quantity with respect to other quantity.

If a and b are two values, their ratio will be a:b.

Given that,

Price for 3 pounds of apples = $3.60.

To find the cost of 1 pound of apple,

Use ratio property,

3 pounds cost = $3.60

1 pound cost = $3.60 / 3

1 pound cost = $1.20

The required cost of 1 pound of apples is $1.20.

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Answer:

The arc is one-third of the circumference.

Step-by-step explanation:

The area of a circumference = 2πr

C = 2πr ... (1)

If an arc subtends a central angle measuring 2π/3 rad,

The length of the arc = rθ

Given θ = 2π/3

Length of the arc L = r(2π)/3

L = 2πr/3... (2)

L = 1/3(2πr)

Since C = 2πr

L = 1/3C

This shows that the arc is one-third of the circumference.

Answer:

5.5

Step-by-step explanation:

Mean means the sum of given variables divided by the numbers

So to calculate the mean,it will be

4+5+6+7/4

=22/4

Divide both by

= 11/2

We can actually Leave the answer as 11/2 or we can leave as a decimal form

5.5

So the final answer is 5.5

Step-by-step explanation:

c???, it cant change the shape of something in a reflection, cause its literally a mirror image

BRAINLIEST PLZ

5*-1

-2.5*2

2.5*-2

-5*1

Answer:

-5*1

-1*5

2.5*-2

-2.5*2

Step-by-step explanation:

Answer:

A IS THE CORRECT ANSWER

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

Let x be 14 and y be 15 and solve A like you normally would

Answer:

$67.41

Step-by-step explanation:

We want to find out how much 30% off of $96.30 is. To do that, we need to first multiply $96.30 to find out how much 30% would be. Don't forget to change 30% into its decimal form (30% - > .3).

96.30 x .3 = 28.89

This means that Steve got $28.89 dollars removed from his final bill. To find the actual final bill, subtract 28.89 from 96.30.

96.30 - 28.89 = $67.41

Answer:

Sunflower=$900

4WD=$1090

Step-by-step explanation:

Wheareas 2WD costs $29,115 but when converted to 4WD it costs $30,205 then it means the cost of 4WD will be $30205-29115=$1090

The total cost of converting 2WD to 4WD with inclusion of sunroof is $31,105

Therefore, the total cost of 4WD and sunroof will be $31105-$29115=$1990

To get the amount for sunroof, we deduct the total cost that includes 4WD and sunroof from $1090

Cost will be $1990-$1090=$900

Final answer:

The inequality x / 3 ≤ 6 models the situation where a student shares a bag of fruit snacks equally with two friends and they each get at most 6 snacks. Solving the inequality, we find that there were at most 18 fruit snacks in the bag.

Explanation:

The inequality given for the scenario where the student shares fruit snacks with two friends is x / 3 ≤ 6. To solve this inequality, we multiply both sides of the inequality by 3 to isolate x on one side. This gives us x ≤ 18.

Therefore, the total number of fruit snacks that could have been in the bag is at most 18. This means if each person got exactly 6 fruit snacks, there would be 18 in the bag. But since the inequality allows for each person to have gotten at most 6 snacks, there could have been fewer than 18 snacks in the bag.

Answer:

Step-by-step explanation:

2 1/2; 4

5/2; 4

100/8

25/4

6 1/4

Given:

One interior angle is 50°.

Exterior angle is 95°.

To find:

The value of x and y.

Solution:

Exterior angle property of triangle:

The measure of an exterior angle is equal to the sum of the measures of the opposite interior angles.

⇒ 50° + y = 95°

Subtract 50° from both sides.

⇒ 50° + y - 50° = 95° - 50°

⇒ y = 45°

Sum of the adjacent angles in the straight line is 180°.

⇒ x + 95° = 180°

Subtract 95° from both sides.

⇒ x + 95° - 95° = 180° - 95°

⇒ x = 85°

The value of x is 85° and y is 45°.

Without additional context such as an equation, the problem to solve for x and y cannot be completed. In mathematics we need the relationship between the variables to solve for them.

The question seems to be incomplete as it does not provide the relationship between x and y or any equations for these values.

Normally in mathematics, we need an equation or a system of equations to solve for these variables. For instance, if we were given that x + y = 90 degrees (which is a complementary angle situation), we could subtract the known angle from 90 to find the other.

Without additional information, we are unable to solve this problem. Please make sure you provide all the necessary context when asking questions.

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Answer:h

2x+1+3x+8./2=. 17

5x+9. = 17 x2

5x+9= 34

-9. -9

5x=25

Divide by 5

X=5

Step-by-step explanation:

To find the volume of a rectangular prism, you just multiply each side.

3 x 3 x 8 = 72

Answer: Its the answer choices A. and E.

Step-by-step explanation: These are the answer choices.

(A.) Both scatterplots had trend lines with positive slopes.

(B.) The same test score is expected from studying for 5 hours or sleeping for 5 hours.

(C.) There is no correlation between the test scores and the number of hours slept.

(D.) The regression line can predict the number of hours studied based on the number of hours slept.

(E.) There is evidence that those with higher test scores tended to sleep more the night before.

Answer: A and E

Step-by-step explanation: A.Both scatter plots had trend lines with positive slopes

E. There is evidence that those with higher test scores tended to sleep mire the night before.

Answer:

3/8

Step-by-step explanation:

Of means multiply

1/2*3/4 = 3/8

Answer:

i think 4.356

Step-by-step explanation:

i just multipled them all

Answer:

1.45

Step-by-step explanation:

hope this helps :)

To find the value of x that results in a mean of 117 for the data set, sum the known values, multiply the mean by the total number of data points, and solve the resulting equation. In this case, the value of x is 149.

The question asks us to find the value of x so that the mean of the data set 102, 119, 107, 115, 110, and x is 117. To calculate the mean of a data set, you sum all the values and divide by the number of values.

First, we sum the known values: 102 + 119 + 107 + 115 + 110 = 553. Since the mean is given to be 117 and we have 6 values including x, the total sum of all the values should be 117 times 6, which is 702. Now we set up the equation to solve for x: 553 + x = 702.

To find x, subtract 553 from both sides of the equation:

553 + x - 553 = 702 - 553

x = 149

Therefore, the value of x that makes the mean of the data set 117 is 149.

Answer:

Step-by-step explanation:

6(x² – 3) and 5x² + x + 11

a. Find the sum of the polynomials.

6(x² – 3) and 5x² + x + 11

6x²-18 + (5x² + x + 11)

6x²-18 + 5x² + x + 11

choose like terms

6x²-5x² + x + 11 -18= x²+x-7

b. Find the difference of the polynomials.

6x²-18 -(5x² + x + 11)

6x²-18 -5x² -x - 11

6x²-5x² -x - 11-18

x²-x-29

Answer:

  Spreadsheet values

  Other values

Step-by-step explanation:

Labeling the columns of the spreadsheet A--F, and the rows 1--7, we want to find the values as follows.

a) The relationship between quantity, price, and revenue is ...

  total revenue = quantity × price

  price = (total revenue)/quantity

Then ...

__

b) The relationship between total cost and marginal cost is ...

  mc2 = (tc2 -tc1)/(q2 -q1)

  tc2 = (mc2)(q2 -q1) +tc1

Then ...

__

c) Marginal revenue is figured the same way as marginal cost.

  mr2 = (r2 -r1)/(q2 -q1)

Then ...

__

d) The quantity maximizing profit will be the quantity such that marginal revenue is equal to marginal cost. That is, marginal profit is zero. That quantity  is 35, where both marginal cost and marginal revenue are 7.

__

e) The price at a quantity of 35 is 13. This value is read from the given table.

__

f) The maximum profit is the difference between revenue and cost at the profit-maximizing quantity:

  maximum profit = 455 -227.5 = 227.5

The question refers to Total Cost (TC) and Marginal Cost (MC) in economics; where TC is the sum of all production costs and MC is the cost of producing one more unit of a good. To fill the table, calculate the difference in total cost for each increase in produced units, as this difference reflects the MC.

The question is referring to the concepts of Total Cost (TC) and Marginal Cost (MC) in economics. Total Cost is the complete expenditure made by a firm in the production process, including both fixed and variable costs. Marginal Cost, on the other hand, is the cost of producing one additional unit of a good. In the case of the Choco Lovers firm, it represents the cost of producing an extra box of chocolates.

To fill in the blanks in the table, the differences in total cost for each increase in the quantity of chocolate gift boxes produced should be calculated. This is because the MC at each level of output is the addition to total cost when one more box is produced. So, if total cost rises by $5 when output increases from 10 to 11 boxes, the MC of the 11th box is $5.

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Answer:

Radius=10cm

Diameter=20cm

Step-by-step explanation:

The Diameter of the cylinder is 20 centimeters.

It is given that the cylinder has a volume of 2,512 cubic cm and a height of 8 centimeters.

It is required to find the diameter of the cylinder.

It is defined as a three-dimensional space enclosed by an object or thing.

We know the volume of the cylinder is given by:

[tex]\rm V = \pi r^2h[/tex]

Where r is the radius of the cylinder and h is the height of the cylinder.

We have V = 2512 cubic centimeters and

               h = 8 centimeters

[tex]\rm 2512 =3.14\times r^2\times8[/tex]

[tex]\rm \frac{2512}{3.14\times8} = r^2[/tex]

[tex]\rm r^2 =100[/tex]

r = 10 centimeters

Diameter = 2r = 2×10 ⇒ 20 centimeters.

Thus, the Diameter of the cylinder is 20 centimeters.

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Answer:

20

Step-by-step explanation:

Angle ABC = 40 degrees, therefore CB = 40 degrees.

An inscribed triangle is half of the angle in the center so, angle ADC = 20 degrees.

Answer:

104+3(90.5)

Step-by-step explanation:

(127.50+23.50)+3(86.50+4)

Let's take the bracket one after another

(127.50-23.50)

104.00

3(86.50+4)

3(90.50)

271.50

Back to the question

151.00+271.50

422.50

So the answer is 104+3(90.50)

Answer:

104+3(90.5)

Step-by-step explanation: becuz i said so

Answer:

96

Step-by-step explanation:

2 hours = 120 minutes

Laps : mins

8 : 10

X : 120

8/10 = X/120

X = 120 × 8/10

X = 96

Answer:

96 laps in 2 hrs

Step-by-step explanation:

2 hours divided by 10 minutes is 12

12*8=96

To check:

10/8=1.25

120/96=1.25

120=2 hours