Letha has 7 coins in her hands totaling $0.50
What are the coins?

Letha has blank nickels and blank dimes.

The correct population should she answered is  is A) 7th graders in the school

To find out the favorite after-school activity of 7th grade students, Ms. Smith should sample the population directly related to the question. In this case, the most appropriate population to sample would be:

A) 7th graders in the school

By sampling the 7th graders in the school, Ms. Smith can directly gather information about their favorite after-school activities. This population consists of the students themselves who engage in the activities, and they would have first-hand knowledge and experience of their preferences.

B) Parents of 7th graders in the school might provide some insights, but they may not accurately represent the activities chosen by the students themselves.

C) Other 7th-grade teachers in the school may have some observations, but it may not reflect the preferences of the entire 7th-grade student population.

D) Sampling all students in the school would be broader than necessary and may not specifically address the favorite after-school activities of 7th-grade students.

Therefore, option A) 7th graders in the school is the most suitable population for Ms. Smith to sample in order to answer her question about the favorite after-school activity of 7th-grade students.

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Answer:

mag try sa chrome

Step-by-step explanation:

thank you

hope it's help

Answer:

10 30 15 16 48 24 25 75 37.5

The equation that represents the volume of the storage container(rectangular prism) in terms of its width is 12w + 6w²

volume of a rectangular prism = lwh

where

Therefore,

h = 6 ft

l = 2 + w

Hence,

volume of the rectangular prism = (2 + w) × w × 6

volume of the rectangular prism = (2w + w²)6

volume of the rectangular prism = 12w + 6w²

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After using linear equation - Randy paid $7.25 for each sub sandwich.

What are linear equations with one variable?

The equation for a linear equation in one variable is written as ax+b = 0, where a and b are two integers, and x is a variable. This equation has only one solution. For instance, the linear equation 4x+4=8 only has one variable.

we are given that,

cost of one hamburger = $5.75

let us assume the cost of one sub sandwich to be $x

thus the cost of three sub sandwiches will be $3x.

we know his total came out to be $27.50

therefore,

we are given that

cost of one hamburger + 3 sub sandwiches = $27.50

= 5.75 + 3x = 27.50

= 3x = 27.50 - 5.75

= 3x = 21.75

= x = 21.75/3

= x = $7.25

thus we know that one sub sandwich costs randy $7.25.

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Answer:

A, B, C, D, F, G

Step-by-step explanation:

A. In order to stop overpayment when your account balance is low, some banks do require a low minimum balance so you don't use more money than you have

B. You can withdraw funds from a checking account easily by using an ATM or go into the bank.

C. There are many different kinds of checking accounts designed for specific activities.

D. One type of account is actually a Money Market account.

F. Some checking account can be joint so 2 or more people can access it (like wife and husband).

G. If you do overpay on your account, you will have to pay penalties for overspending.

E is incorrect because there are some few checking accounts that earn interest (very few).

H is incorrect because some banks require fees and restrictions.

Answer:

b

Step-by-step explanation:

-44÷2=-22

34+3.5*-22= -43

The wavelength of an atom is 3.28× 10−11 m when it is travelling at its root-mean-square speed at 20 °C. Decide on the atom. Consequently, M = 2 and the gas's molar mass is 2 kgmol−1 .

Radio waves, light waves, and infrared (heat) waves are examples of electromagnetic radiation that flow through space in distinct patterns. Every wave is a specific size and shape.

calculation

urms=  \(\sqrt{\frac{3RT}{M} }\)

and

λ=h/murms

⟹urms=h/mλ⟹

 \(\sqrt{\frac{3RT}{M} }\)=h/mλ

72.2 = 148.17 / M

M = 148.17/72 ≈ 2

Consequently, M = 2 and the gas's molar mass is 2  kgmol−1. A gas with a molecular mass of 2 kgmol-1, however, does not exist.

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These inequalities ensure that Bob buys at least three albums, and no more than 35 individual songs, while staying within his budget of $60.

The system of inequalities that represents the situation is:

x + 10y ≤ 60 (total cost cannot exceed $60)

x ≤ 35 (no more than 35 individual songs)

y ≥ 3 (at least three albums)

Here, x represents the number of individual songs and y represents the number of albums.

The first inequality, x + 10y ≤ 60, ensures that the total cost of Bob's purchases does not exceed $60.

The second inequality, x ≤ 35, ensures that Bob does not buy more than 35 individual songs.

The third inequality, y ≥ 3, ensures that Bob buys at least three albums.

Together, these inequalities ensure that Bob buys at least three albums, and no more than 35 individual songs, while staying within his budget of $60.

Note that this system of inequalities assumes that Bob only buys whole albums, and not individual songs from albums. If he buys individual songs from albums, the system of inequalities would be more complex.

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Answer:

The answer is 15 cm.

Step-by-step explanation:

y= k/x

x= width

y= length

So there for;

x= 5

y= 12

Which means that;

12= k/5

k= 60

And then;

y= 60/x

Which then finally means that;

y= 60/4

60/4= 15 cm

Answer:

r + ¾ = ⁷/₈

r = ⁷/₈ - ¾

⁷/₈ - ⁶₈ = ¹/₈

r = ¹/₈

Step-by-step explanation:

but my original answer was 4/4

Answer:

Step-by-step explanation:

o.3 I think not sure but wanted to help u

Answer:

o.3 I think not sure but wanted to help u

Step-by-step explanation:

Answer:

2 i think

Step-by-step explanation:

Answer:

15.4z - 12

Step-by-step explanation:

Distribute:

=7.4z + (−5)(−1.6z) + (−5)(2.4)

=7.4z + 8z + −12

Combine Like Terms:

=7.4z + 8z + −12

=(7.4z+8z) + (−12)

=15.4z + −12

Answer:

A) 4

Step-by-step explanation:

First note that m cannot exceed 10 otherwise 100-m² will be negative and √(100-m²) will not be a real number much less an integer

Enumerate all values of m from 0 through 10, find the square, subtract from 100 and see if the result is a perfect square.- we take the square root and see if it is an integer value. The table below details everything. m and n are integers on in 4 cases m = 0, 6, 8 or 10.

Hence the answer is 4 solutions

m   m²    100-m²    √(100-m²)        

0 0 100        10

1 1 99

2 4 96         9.797958971

3 9 91         9.539392014

4 16 84         9.16515139

5 25 75         8.660254038

6 36 64         8

7 49 51         7.141428429

8 64 36         6

9 81 19        4.358898944

10 100 0        0

Answer:

0'=(0,3)

Step-by-step explanation:

P'=(-5+5,7-5)=(0,3)

It could be slightly lower or higher, but we can be confident that it falls somewhere between 0.32 minutes and 1.47 minutes.

The most accurate interpretation of the given confidence interval is as follows:

We are 95% confident that the true difference in mean wait time between Facility A and Facility B falls within the range of 0.32 minutes to 1.47 minutes.

This means that if we were to repeat the study multiple times and calculate a new confidence interval each time, we would expect that approximately 95% of those intervals would contain the true difference in mean wait time between the two facilities.

Furthermore, based on the observed data and the calculated confidence interval, we can conclude that the difference in mean wait time between Facility A and Facility B is likely to be positive, with Facility B having a higher mean wait time than Facility A. However, we cannot say with certainty that the true difference is exactly within this specific range; it could be slightly lower or higher, but we can be confident that it falls somewhere between 0.32 minutes and 1.47 minutes.

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Answer:

a = -7 and b = 14.

The probability of selecting a piece of pottery is 7/26, and when converted to a percentage and rounded to the nearest whole percent, it is approximately 27%.

An archaeologist uncovers 26 artifacts from a site. The types of artifacts are shown below. The horizontal axis represents tools, pottery, and coins. The vertical axis represents the number of artifacts and ranges from 0 to 16, in increments of 2. The number of artifacts of tools is 14. The number of artifacts of pottery is 7. The number of artifacts of coins is 5.

The total number of artifacts at the site = 26

Number of pottery artifacts = 7

Probability of selecting a piece of pottery = Number of pottery artifacts/Total number of artifacts

Probability of selecting a piece of pottery = 7/26

If we want to express this probability in a percentage, we can convert it by multiplying it by 100.

Thus,Probability of selecting a piece of pottery = 7/26 = 0.269 = 26.9% (rounded to the nearest whole percent)

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The solution to the given differential equation, [exy'] + xy = 0, with x ∈ (-∞, ∞) and dx⁄dt = 0, is x = 0.

To find the solution, we first note that dx⁄dt = 0 implies that x is a constant with respect to time. Substituting this information into the differential equation, we have exy' + xy = 0. Since dx⁄dt = 0, dy⁄dt = 0 as well, which means y is also a constant. Let's denote this constant as c.

Now, we have ex(0) + x(0) = 0, which simplifies to 0 + 0 = 0. This equation holds for any value of x, except when x = 0. Hence, the only solution that satisfies the given conditions is x = 0.

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Answer:

slope (m)= 1/2

y-intercept: (0, -1)

equation: y=\(\frac{1}{2}\)x-1

Step-by-step explanation:

slope is \(\frac{rise}{run\\}\)=\(\frac{1}{2}\)

y-intercept is where the line crosses the vertical axis (y-axis) so its (0, -1)

using point slope form:

y-y1=m(x-x1)

y-(-1)=1/2(x-0)

y+1=1/2x

y=\(\frac{1}{2}\)x-1

Stratified sampling involves dividing the population into groups and randomly selecting a proportionate number of individuals from each group.

What is the purpose of stratified sampling?

What are the steps of stratified sampling?

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Answer:

Step-by-step explanation:

A(t)=800+70t

B(t)=650+85t

A(5)=800+350=1150

B(5)650+425=1045

A(5)>B(5)

Answer:

1. No x-intercept/Zero

2. x = 3/4

Step-by-step explanation:

The GPA of the student who scored 63 in the performance test is 2.394.

Given, a researcher analyzed data using linear regression correlating a performance test and GPA and calculated a slope of 0.028 and y-intercept of 0.63.

we have find the GPA of a student who scored 63 in the performance test.

Let the score of the student in performance test be, x

and the GPA of the student be, y

So, y = mx + c

as, m = 0.028 and c = 0.63

y = 0.028x + 0.63

at x = 63

y = 0.028×63 + 0.63

y = 2.394

So, the GPA of the student who scored 63 in the performance test is 2.394.

Hence, the GPA of the student who scored 63 in the performance test is 2.394.

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For conversion of cubic feet to cubic meters, you can use the following conversion factor:

1 cubic meter = 35.3147 cubic feet

So, to convert cubic feet to cubic meters, you can multiply the number of cubic feet by the conversion factor of 0.0283168 (which is the reciprocal of 35.3147):

Cubic meters = Cubic feet x 0.0283168

For example, if you have a volume of 100 cubic feet, you can convert it to cubic meters as follows:

Cubic meters = 100 cubic feet x 0.0283168 = 2.83168 cubic meters

Therefore, 100 cubic feet is equivalent to 2.83168 cubic meters.

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Answer

Option C is correct.

Sandra will be paid 72.30 dollars for babysitting for 12 hours.

Explanation

We are told that Sandra earned 60.25 dollars babysitting 10 hours.

If she babysits at the same rate, we are asked to calculate the amount she would earn if she babysits for 12 hours.

Let the amount Sandra is paid for babysitting for 12 hours be x dollars

10 hours = 60.25 dollars

12 hours = x dollars

We can write a mathematical relationship by cross multiplying

10 × x = 12 × 60.25

10x = 723

Divide both sides by 10

(10x/10) = (723/10)

x = 72.3 dollars

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The number of triangles can be formed 84

A triangle is a polygon with three sides which consists of three vertices. A triangle can be formed from three given points only if the three points do not lie on a straight line and also form 180 degree angle.

Since the 3 points are distinct and lie on a circle, then it is not possible to have three points such that all three lie on a line.

Hence, we can use these 3 points to form triangles by selecting 3 points. The number of such ways is the number of different triangles we can form. Hence,

Triangles = \(C^9_3\)

Triangles = \(\frac{9!}{3!(6!)}\)

Triangles = 84

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The amount of money in the account after 3 years is approximately $2,023.78.

To calculate the amount of money in the account after 6 years, we can use the compound interest formula:

\(A = P(1 + r/n)^(nt)\)

where:
A is the final amount of money in the account,
P is the initial deposit ($445),
r is the annual interest rate (20.00% or 0.20),
n is the number of times the interest is compounded per year (365),
and t is the number of years (6).

Plugging in the values, we have:

A=\(\\445(1+ 0.20)^6\)

Calculating this expression, we find that the amount of money in the account after 6 years is approximately $1,100.62.

For the second question, to find the total amount in the account after 3 years, we can use the same compound interest formula:

A = \(P(1 + r/n)^(nt)\)

where:
A is the final amount of money in the account,
P is the sum of all the initial deposits ($753 + $464 + $407),
r is the annual interest rate (20.00% or 0.20),
n is the number of times the interest is compounded per year (365),
and t is the number of years (3).

Plugging in the values, we have:

\(A = (753 + 464 + 407)(1 + 0.20/365)^(365*3)\)

Calculating this expression, we find that the amount of money in the account after 3 years is approximately $2,023.78.

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Answer:

the guy above if right it is D

Step-by-step explanation:

I did the work on Acellus and pick D IT GAVE ME A CHECK MARK

The reason that supports the statement 7 in the given proof is D. Subtraction property of equality.

Subtraction property of equality is defined as, if an equation is of the form,

a = b,

then any number subtracted from both sides makes the equation same.

a - c = b - c

Here, given a proof for the value of x.

In the 6th step, by substitution,

55 = 5x + 10

This is an equation.

We need term in x on one side and a constant term on other side.

For that, if we subtract both sides by 10,

55 - 10 = 5x + 10 - 10

45 = 5x

So here the subtraction property of equality is used.

Hence the correct option is D.

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