Can someone please help me get this answer

Answer:

Jamel - 110 Sister - 140

Step-by-step explanation:

We are going to work backwards. If Jamel received 30 dollars less than his sister, then the total goes down to $220. Then you divide by 2 to split the money between each equally. Now Jamel has $110 and his sister has $110. But you have to add the original $30 back to his sister's total because she got  $30 more. Hence Jamel has $110 and his sister has $140.

Answer:

Jamal got 220

Step-by-step explanation:

250-30 in other hand just do 50-30 or 5-3

Answer:

The population is all bottles in the production line and the sample is the 50 bottles that were selected.

Step-by-step explanation:

Edge 2020

Answer:

He's right

Step-by-step explanation:

Answer

At the current rate, 2420 pounds will be the weight bench pressed after 2 months.

Explanation

A given quantity that increases by a constant rate monthly can have its current value calculated according to the formula,

A = A₀ (1 + r)ᵗ

A = Value after a given time t (in months)

A₀ = Initial value = 200 pounds

r = rate of increase = 10% monthly = 0.10

t = time = 2 months

A = A₀ (1 + r)ᵗ

A = 2000 (1 + 0.1)²

A = 2000 (1.1)²

A = 2000 (1.21)

A = 2,420 pounds

Hope this Helps!!!

Answer: The answer is option C

Step-by-step explanation:

Answer: it is C

Step-by-step explanation:

$16.94 divided by 5 which is how many pounds there is is 3.388 which rounds up to 3.39

Answer:

For more;

4.76

for less;

0.46

Step-by-step explanation:

Here, we intend getting the decimals that Carmen should make in her game given the numbers she drew

She has two types to make; a decimal less than 1 and a decimal more than 1

If the decimal should be less than 1, the number zero should lead;

And since she is using three of the numbers, we can have something like;

0.46

To make a decimal more than one, she could actually start with any of the numbers other than zero

we can have something like 4.76

Answer: 160

Step-by-step explanation:

first workout the multiplication sums [22 x 28 = 616]

[18 x 28 = 505] then add 2 numbers together [616 + 505 = 1120]

then divide the answer by 2 [1160 / 2 = 160

Answer:

10, 16

Step-by-step explanation:

List the factors of 160.

1 × 160 = 160

2 × 80 = 160

4 × 40 = 160

5 × 32 = 160

8 × 20 = 160

10 × 16 = 160

(there are more, but we don't need them)

Check to see which factors can be added together to make 26, half of 52.

10 and 16 make 26.

That's the answer!

I hope this helps!

pls ❤ and mark brainliest pls!

The conclusion that is correct in a two-tailed test at α = .05 is There appears to be no difference in the mean occupancy rates.

From the given values:

Thus, the P-value = 0.1791

Interpret results. Since the P-value (0.1791) is greater than the significance level (0.05), we failed to reject the null hypothesis.

From the above test, we do not have sufficient evidence in favor of the claim that there is a difference in the mean occupancy rates.

Thus, option A is correct.

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Answer:38

Step-by-step explanation:

First we isolate the x variable

0.03x +7.2 - 7.2 = 8.34 - 7.2

0.03x = 1.14

0.03x/0.03 = 1.14/0.03

x=38

The sufficient percentage of pellets within a 30-inch circle should be; ''concentrated in the center at least 55% of the load, with even distribution.''

What is mean by Percentage?

A number or ratio that can be expressed as a fraction of 100 or a relative value indicating hundredth part of any quantity is called percentage.

Given that;

The percentage of pellets within a 30-inch circle.

Now,

We know that;

According to the state hunter education standards, your shotgun pattern within a 30-inch circle should be; ''concentrated in the center at least 55% of the load, with even distribution.''

Thus, The sufficient percentage of pellets within a 30-inch circle should be; ''concentrated in the center at least 55% of the load, with even distribution.''

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a = 10, c = 15, b = 5√5

a = 8, c = 18, b = 2√65

a = 12, c = 14, b = 2√13

a = 4, c = 20, b = 8√6

a = 12, b = 14, c = 2√85

a = 4, b = 20, c = 4√26

a = 10, b = 15, c = 5√13

a = 8, b = 18, c = 2√97

The probability of a single randomly sampled observation having a value above the mean is approximately 0.1587, assuming a normal distribution.

if the mean of the data is μ and the standard deviation is σ, then the probability of a single observation being above the mean is given by:

P(X > μ) = 1 - P(X ≤ μ)

where X is the random variable representing the data. To calculate this probability, we need to standardize the data by subtracting the mean from each observation and dividing by the standard deviation. This gives us a standard normal variable Z, which has a mean of 0 and a standard deviation of 1.

Then, we can look up the probability in a standard normal table or use a calculator or software to find the area under the standard normal curve to the right of Z = 0.

For example, suppose we have a dataset with a mean of 10 and a standard deviation of 2. If we standardize the data, then a value of 12 would correspond to a Z-score of:

Z = (12 - 10) / 2 = 1

The probability of a value being above the mean is then:

P(X > 10) = 1 - P(X ≤ 10) = 1 - P(Z ≤ 1) = 1 - 0.8413 = 0.1587

Therefore, the probability of a single randomly sampled observation having a value above the mean is approximately 0.1587, assuming a normal distribution.

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The null hypothesis is a statement that assumes there is no significant relationship between two variables or that there is no difference between two groups. In the context of the given question, the null hypothesis would be that the mean driving times for the three routes are the same.

This means that there is no significant difference in the average driving times for the three routes being compared. The null hypothesis is often used in statistical hypothesis testing, where it is compared against the alternative hypothesis to determine if the observed data provides enough evidence to reject the null hypothesis.

In this case, the alternative hypothesis could be that the mean driving times for the three routes are different, indicating that there is a significant difference in the average driving times for the three routes. By testing the null hypothesis, researchers can determine whether or not there is a significant difference in the data being analyzed.

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a. The accumulated value of the annuity using the portfolio method is $19,454.11.

b. The accumulated value of the annuity using the yield-curve method is $34.33, rounded to 2 decimal places.

(A) To find the accumulated value of the annuity using the portfolio method, we need to calculate the accumulated value for each period separately based on the given effective interest rates.

For the first 15 periods with an 8% effective interest rate, we can use the formula for the accumulated value of an ordinary annuity:

Accumulated value = payment * [(1 + r)^n - 1] / r

where payment is $600, r is the effective interest rate per period (8% or 0.08), and n is the number of periods (15). Plugging in these values, we have:

Accumulated value (15 periods) = $600 * [(1 + 0.08)^15 - 1] / 0.08 = $10,092.94

For the following 16 periods with a 3% effective interest rate, we repeat the calculation using the same formula:

Accumulated value (16 periods) = $600 * [(1 + 0.03)^16 - 1] / 0.03 = $9,361.17

To obtain the total accumulated value of the annuity, we sum up the accumulated values for the two periods:

Total accumulated value = Accumulated value (15 periods) + Accumulated value (16 periods) = $10,092.94 + $9,361.17 = $19,454.11

Therefore, the accumulated value of the annuity due using the portfolio method is $19,454.11.

(B) To find the accumulated value of the annuity using the yield-curve method, we need to calculate the weighted average of the accumulated values based on the respective interest rates and periods.

First, we calculate the present value (PV) of each payment using the formula:

PV = payment / (1 + r)^n

where payment is $600, r is the effective interest rate per period, and n is the number of periods.

For the first 15 periods, with an 8% effective interest rate, the present value of each payment is:

PV (15 periods) = $600 / (1 + 0.08)^15 = $263.99

For the following 16 periods, with a 3% effective interest rate, the present value of each payment is:

PV (16 periods) = $600 / (1 + 0.03)^16 = $440.43

To calculate the accumulated value using the yield-curve method, we multiply each present value by the respective interest rate and sum them up:

Accumulated value = (PV (15 periods) * 8%) + (PV (16 periods) * 3%)

Accumulated value = ($263.99 * 0.08) + ($440.43 * 0.03) = $21.12 + $13.21 = $34.33

Therefore, the accumulated value of the annuity using the yield-curve method is $34.33, rounded to 2 decimal places.

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2n^3 + 3n + 10 can be written as a polynomial of the form Q(n^3), where Q(n^3) represents the set of polynomials of the form a(n^3).

To prove that the expression 2n^3 + 3n + 10 is in the set Q(n^3), where Q(n^3) represents the set of polynomials of the form a(n^3), we need to show that the expression can be written in the form a(n^3) for some constant "a".

Let's start by factoring out the common factor of n^3 from each term:

2n^3 + 3n + 10 = n^3(2 + 3/n^2 + 10/n^3)

Now, let's rewrite the expression as a single term multiplied by n^3:

2n^3 + 3n + 10 = (2 + 3/n^2 + 10/n^3)n^3

Simplifying the expression inside the parentheses:

= (2n^3 + 3n^2 + 10n^3)/n^3

= (12n^3 + 3n^2)/n^3

= 12 + 3/n

ow, we can see that the expression can be written in the form a(n^3), where a = 12 and n^3 = 3/n.

Therefore, we have shown that 2n^3 + 3n + 10 can be written as a polynomial of the form Q(n^3), where Q(n^3) represents the set of polynomials of the form a(n^3).

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In mathematics, "\(a^2\)" denotes the square of a number or variable "a." It is calculated by multiplying "a" by itself.

4For example, if "a" is 5, then a^2 would be 5*5, which equals 25. When "a" represents a positive number, its square is always positive.

If "a" is negative, its square is still positive since a negative multiplied by a negative results in a positive.

In geometrical terms, if "a" represents the length of the side of a square, then a^2 represents the area of that square. This notation is part of the general concept of exponentiation.

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The Question in English

What does a^2 mean in mathematics

Answer:

I need help

Step-by-step explanation:

Answer:

i = 8

Step-by-step explanation:

Answer:

Here we want to complete the blank to make the equality true:

( ) = (2 - 6)*(-4)

The equality is true if we have the same value in both sides, so we can think of this as an algebraic equation:

x = (2 - 6)*(-4)

We just need to find the value of x.

Then let's solve the right side:

x = (2 - 6)*(-4) = (-4)*(-4)

Remember the rule of signs:

(-)*(-) = (+)

x = (-4)*(-4) = 4*4 = 16

Then we need to complete the blank with the number 16

(16) = (2 - 6)*(-4)

The blocks that were used by both mino and her brother is 18

From the question, we have the following parameters that can be used in our computation:

The block of the dimension: 3 by 2 by 1 (see attachment)

When 2 more layers are added on top of the blocks, we have the following dimensions: 3 by 2 by 3

The number of blocks that were used by both mino and her brother is the product of the dimensions

So, we have

Blocks = 3 * 2 * 3

Evaluate

Blocks = 18

Hence, the blocks that were used by both mino and her brother is 18

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Complete question

Mino built this shape with her blocks. Her brother added 2 more layers just like Minos on top. how many blocks were used by both mino and her brother

See attachment

Median for the given data 17, 2 ,7 is  12.

What is median?

The median is that the value that’s precisely within the middle of a dataset once it's ordered. It’s a live of central tendency that separates the bottom 50% from the very best 50% of values.

Main body :

First of all to find the median data should be arranged in ascending order.

Aranging data in ascending order

2, 5 , 7 , 7 , 8 , 8 , 10 , 10 , 14 , 15 , 17 , 18 , 24 , 27 , 28 , 48

Now there are even number of terms i. e 16

So,

M1 = n / 2 and M2 = ( n / 2 ) + 1

= 16 / 2 = 8 + 1

= 8th term = 9th term

M1 = 10 M2 = 14

Median, M = ( M1 + M2 ) / 2

= ( 10 + 14 ) / 2

= 24 / 2

= 12

Hence median of observation is 12.

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The total surface area of the square based pyramid equal to 60 square yards

The formula for finding the surface area of the square is given as;

TSA = a²+2a√a²/4 + h²

where:

B is the base area

H is the height

Determine the base area

Base area = 5yd * 5yd

Base area = 25yd²

Determine the height using the pythagoras theorem;

h² = 5² - 3²

h² = 25 - 9

h² = 16

h = 4yd

Determine the surface area

TSA = 5²+2(5)√5²/4 + 4²

TSA = 25+10√25/4 + 16
TSA = 25 + 10√49/4
TSA = 25 + 10(7/2)

TSA = 25 + 35

TSA = 60 square yards

Hence the total surface area of the square based pyramid equal to 60 square yards

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Unit rate

Answer:

1½ miles/day .

Step-by-step explanation:

To find:-

Answer:-

It is given that the crew made 8¼ miles of road in 5½ days . To find the rate of work done , simply divide the total length of road nade by total time taken . That would be , ( rate is represented by "r" . )

\(:\implies \sf r = 8\dfrac{1}{4}\div 5\dfrac{1}{2} \ miles/day\\\)

Convert the mixed fraction into improper fraction.

\(:\implies \sf r = \dfrac{33}{4}\div \dfrac{11}{2} \ miles/day \\\)

For dividing them , multiply the reciprocal of 11/2 by 33/4 as ,

\(:\implies \sf r = \dfrac{33}{4}\times \dfrac{2}{11} \ miles/day\\\)

\(:\implies \sf r = \dfrac{3}{2} \ miles/day \\\)

\(:\implies \sf \pink{ r = 1\dfrac{1}{2}\ miles/day } \\\)

Hence the unit rate of constructing the road is 1½ miles/day .

We can stack 6 books on a shelf in 480 ways such that math books are not next to each other.

We can find our total arrangements as 6! = 720 ways.

The math books can be placed in five different ways when they are all together, with two options for each position. The other books can be put in 4! different ways for each position. So we have = 5 * 2! * 4! = 10 * 24 = 240.

So our final answer will be 720 - 240 = 480 ways.

Hence, 6 books on a shelf can be arranged in 480 ways such that no math books are next to each other.

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The answer to your question is that the radicals you are referring to is called the "substring" operator. It is used to determine whether one string is a substring of another string. The substring operator is represented by the symbol "in" in Python.

The substring operator checks whether a specific string is present within another string. If it is, then the operator returns True, and if not, then it returns False. This is a very useful operator when it comes to manipulating strings in Python.

A string is created in Python, it cannot be changed. Strings in Python are considered immutable, which means that any modifications to a string will result in the creation of a new string object. This is different from some other programming languages, where strings can be modified in place.

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a. U'(ct) = β(1 + r)U'(ct+1). This equation is known as the Euler equation, which represents the intertemporal marginal rate of substitution between consumption at time t and consumption at time t+1.

b. U'(c1) = β(1 + r)^2U'(c3). This relationship shows that the marginal utility of consumption at time 1 is equal to the discounted marginal utility of consumption at time 3.

c. C0 = ∑t=0[infinity]​(β(1 + r))^tct. This equation represents the sum of the discounted values of consumption at each period, where the discount factor β(1 + r) accounts for the diminishing value of future consumption.

d.  U0 = ∑t=0[infinity]​(β(1 + r))^tln(ct). This equation represents the sum of the discounted values of utility at each period, where the discount factor β(1 + r) reflects the time preference and the logarithmic utility function captures the agent's preference for consumption.

Y0 = y0 + (1 + γ)y1 + (1 + γ)^2y2 + ..., where γ represents the growth rate of income.

a. The optimization problem of the representative agent involves maximizing the present discounted value of utility subject to the period-by-period budget constraint. The Euler equation is derived as follows:

At each period t, the agent maximizes the utility function U(ct) = ln(ct) subject to the budget constraint ct = (1 + r)wt + yt, where wt is the agent's wealth at time t. Taking the derivative of U(ct) with respect to ct and applying the chain rule, we obtain: U'(ct) = β(1 + r)U'(ct+1). This equation is known as the Euler equation, which represents the intertemporal marginal rate of substitution between consumption at time t and consumption at time t+1.

b. The Euler equation between time 1 and time 3 can be written as U'(c1) = β(1 + r)U'(c2), where c1 and c2 represent consumption at time 1 and time 2, respectively.

Similarly, we can write the Euler equation between time 2 and time 3 as U'(c2) = β(1 + r)U'(c3). Combining these two equations, we fin

d U'(c1) = β(1 + r)^2U'(c3). This relationship shows that the marginal utility of consumption at time 1 is equal to the discounted marginal utility of consumption at time 3.

c. The present discounted value of optimal lifetime consumption can be written as C0 = ∑t=0[infinity]​(β(1 + r))^tct. This equation represents the sum of the discounted values of consumption at each period, where the discount factor β(1 + r) accounts for the diminishing value of future consumption.

d. The present discounted value of optimal lifetime utility can be written as U0 = ∑t=0[infinity]​(β(1 + r))^tln(ct).

This equation represents the sum of the discounted values of utility at each period, where the discount factor β(1 + r) reflects the time preference and the logarithmic utility function captures the agent's preference for consumption.

e. The present discounted value of lifetime income, denoted as Y0, can be expressed as Y0 = y0 + (1 + γ)y1 + (1 + γ)^2y2 + ..., where γ represents the growth rate of income. The income in each period is multiplied by (1 + γ) to account for the increasing income over time.

This assumption of income growth allows for a more realistic representation of the agent's economic environment, where income tends to increase over time due to factors such as productivity growth or wage increases.

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Answer:

At the end of first 12 hours = 22.5mg

At the end of the first day = 45mg

At the end of the tenth day = 450mg

Step-by-step explanation:

Hello,

Sophia's doctor prescribed 500mg of drug for her every 12hrs.

At the end of 12 hours, she found out she has 4.5% of the drug in her blood.

What is the amount of the drug in her blood after 12 hours?

After 12 hours = 4.5 / 100 = x / 500mg

x = (4.5 × 500) / 100

x = 22.5mg

At the end of the first 12 hours, she has 22.5mg of the antibiotic in her body.

2. At the end of the second dose, she has

22.5mg + 22.5mg = 45mg of the drug in her body

3. at the end of the third dose, she has (22.5 + 22.5 + 22.5)mg in her body = 67.5mg

4. At the end of the fourth dose, she has (22.5 + 22.5 + 22.5 + 22.5)mg in her body = 90mg

Since 1 day contains 24hrs = 2 × 12hrs

The amount of drug present in her body at the end of the first day = (22.5 + 22.5)mg = 45mg

Assuming the concentration of the drug does not decrease over the course of the 10 days, there's an increase of 45mg of the antibiotic in her body every day

First day = 45mg

Second day = 45mg × 2 = 90mg

Third day = 45mg × 3 = 135mg

Fourth day = 45mg × 4 = 180mg

Fifth day = 45mg × 5 = 225mg

Sixth day = 45mg × 6 = 270mg

Seventh day = 45mg × 7 = 315mg

Eighth day = 45mg × 8 = 360mg

Ninth day = 45mg × 9 = 405mg

Tenth day = 45mg × 10 = 450mg

At the end of the tenth day, the amount of antibiotic present in her blood would be 450mg

The reflection across the x-axis will have the coordinates (x, -y).

         The x-axis and y-axis are found in graphs, and both have positive and negative ends. The horizontal axis is called the x-axis, and the vertical axis is called the y-axis.

         The x-axis has positive integers on its right and negative integers on its left. The y-axis has positive integers above the zero coordinate and negative integers below the zero coordinate.

         If we take a point on the upper side of the x-axis, its coordinates will be (x, y). While drawing its reflection on the x-axis, we need to draw the point on the vertically opposite plain. Thus, the coordinates of the reflection will be (x, -y).

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Answer:

259.5

Step-by-step explanation:

8.1*12=97.2
Area of trapiezium = 1/2(b+a)h
(2.8+8.1)=10.9
10.9*3/2=16.35
16.35*2=32.7
2.8*12=33.6
33.6+32.7+97.2=163.5
4*12*2=96
163.5+96=259.5