Mathematics High School

Leo wants to determine the average number of texts middle school students send in a day. Since all middle school
students are enrolled in history, he randamly surveyed 4 'students from each of Mr. Barnes's eighth-grade history
classes. Ms. Lopez and Mrs. Frank also teach eighth-grade history. What should Leo do to ensure his sample is
representative of all middle school students?
O He should take the sample as is because he randomly surveyed students in each of Mr. Barnes's classes.
He should also take a sample from Ms. Lopez's and Mrs. Frank's classes so that each student has the same
chance of being chosen.
O He should also take a sample from each of the other history classes in all of the other grades in the middle school.
O He should survey al the students in all the history classes to make sure he collects enough data.
Mark this and return
Save and Exit
Next
Submit

Answers

Answer 1

Answer:

3rd Choice

Step-by-step explanation:

He is looking to collect a sample representing middle school students, not just 8th grade students. He needs to get all the data from all the middle school students.

Related Questions

If you could live anywhere, where would it be?
What is your biggest fear?

Answers

Answer:

A forest and a Lion and a bear

Step-by-step explanation:

Answer:

a tropical island

Step-by-step explanation:

cuz their is farm equipment know as a

Solve for b.

b = ✓ [?]
Enter the number
that goes beneath
the radical symbol.
9
16
b
3

Answers

Answer:

b =✓45

Step-by-step explanation:

9^2-6^2

√45

b= ✓45

The slope of a line is -1/3, and the y-intercept is 10/3 . What is the equation of the line written in general form?

10x + 3y - 1 = 0
x + 3y + 10 = 0
x + 3y - 10 = 0

Answers

Answer:

x+3y-10=0 I hope it helps you

The question is attached.​

Answers

Answer:

-3, uh its a short answer

I got -3
If u need the work lmk

geometry please help

Answers

I'd say C because the lengths do not have to be the same but the angles do

Which is heavier?


.93 kg


900 grams


12500 decigrams


1,380,000 milligrams

Answers

1,380,000 milligrams is heavier

Hope that helps :)

A car costs 20% less this year than last year. Last year, the car cost 5% less than the year before. The price of the car this year is $9,400. How much did the car cost 2 years ago?

Answers

Answer:

The answer is 11,374

Step-by-step explanation:

First we find 5% of 9,400 is.

9,400 * 5% = 470

Next we add 9,400 with 470 then multiply by 20%

9,400 + 470 = 9,870

9,870 * 20% = 1974

Next we add.

9,870 + 1,974 = 11,374

So, the answer is 11,374

Hope this helps! :)

Select all the expressions that are equivalent to -90x+60.

A:-10(9x-6)

B:10(-9x+6)

C:30(-3x+2)

D:-10(9x+6)

E:-30(-3x+2)

Answers

Answer:A, B and C

Step-by-step explanation:

2x = 2y - 6 and y = x - 2

Answers

Answer:

2x=2y-6 equals x-y=-3 and y=x-2 equals x=2

Step-by-step explanation:

i hope this helps

Find the length of ab!!!!

Answers

Answer:

6.4

Step-by-step explanation:

Using Pythagorean theorem (a^2+b^2=c^2), 4^2+5^2=41. The square root of 41 is 6.4.

6.4 will be your answer

Solve
(0.54 x 0.28)+(0.46 x 0.41)

Answers

Answer:

Step-by-step explanation:

0.3398

Answer:

Answer vary :

0.3398

Step-by-step explanation:

honestly in my opinion that’s my answer.

1. multiply (0.54 times 0.28) = 0.1512

2. multiply (0.46 times 0.41) = 0.1886

3. add 0.1512 + 0.1886 = 0.3398

and that’s how I did it.

Internos consecutivos

Answers

Answer:

hi........................................

Ummm ok..........? Ig

I need help with this please

Answers

Your equation is 33B-8 pls give brainliest trying to rank up if this is correct

If there are 17 teachers, how many students are there?

Answers

Answer:

is there anymore to that question

Step-by-step explanation:

-2(x-4)=4 can x=2 be the solution

Answers

Answer:

Step-by-step explanation:

-2x + 8 = 4

-2x = 4 - 8

-2x = - 4

x = - 4/-2 = 2

replace x with 2 on the equation

-4-4=4

so answer is no

-8=4 not possible

K is between P and Q. Suppose PQ- 10x - 16, PK - 6x + 8, and KQ-8. What is PQ?

Answers

Answer:

PQ = 64

Step-by-step explanation:

PQ = PK + KQ

10x - 16 = 6x + 8 + 8

10x - 16 = 6x + 16

4x = 32

x = 8

PQ = 10(8) - 16

     = 80 - 16

     = 64

the population of san san Pablo ca is about 33,950 people. ten years ago the population was about 30,000. by what PERCENT did the popular increase between ten years ago and now?​

Answers

Answer:

ABOUT 13 PERCENT

Step-by-step explanation:

I AM NOT CERTAIN BUT I GOT IT BY:

NEW PRICE - OLD PRICE divided by OLD PRICE X 100

in a group of 30 children, 80%can’t swim how many children can’t swim

Answers

Answer:

24

Step-by-step explanation:

80% is 0.8
30x0.8 is 24
So 24 cant swim


Find the value of a in the parallelogram shown to the right note that the figure is not drawn to scale

Answers

Step-by-step explanation:

2a+26°+58°=180°

2a=180-26-58

2a=96

a=48

2*48+26=122

○=> Correct answer :[tex]\color{plum}\tt\bold{a =16}[/tex]○=> Steps to derive the correct answer :

Given :

▪︎Measure of an angle in a parallelogram = 58°

▪︎Measure of the angle opposite this angle = (2x+26)°

We know that :

▪︎Opposite angles in a parallelogram are equal.

Which means :

[tex] =\tt 2a+ 26 = 58[/tex]

[tex] =\tt 2a = 58 - 26[/tex]

[tex] =\tt 2a= 32[/tex]

[tex] =\tt a = \frac{32}{2} [/tex]

[tex]\hookrightarrow\color{plum}\tt a = 16[/tex]

Thus, the value of a = 16

Let us now place 16 in the place of a and check whether or not we have found out the correct value of a:

[tex] =\tt 2 \times 16 + 26 = 58[/tex]

[tex] = \tt32 + 26 = 58[/tex]

[tex] =\tt 58 = 58[/tex]

Since the values in both the side match, we can conclude that we have found out the correct value of a.

▪︎Therefore, the value of a = 16

What is 6.9-(-5)+4.1​

Answers

Answer:

16

Step-by-step explanation:

6.9+5+4.1

11+5

16

pls thanks

Answer:

16

Step-by-step explanation:

Recall that the product of a negative number and another negative number is a positive number.  Thus, -(-5) = +5, and the original expression becomes

6.9 + 5 + 4.1​.

Combining the mixed numbers 6.9 and 4.1, we get 11.

Combining 11 and 5 results in 16.

HELPPP PLEASE!!!! HELP

Answers

A1 x=5
2 x=7
3 t=3
B1 x=3
2 x=2
3 z= √6

Need some help please!!! You just fill in both blanks please!!​

Answers

Answer:

a

Step-by-step explanation:

can yall help me 17 = x - 28?

Answers

Answer:

Step-by-step explanation:

For an algebra question like this you are trying to solve for the x.

The way you do that is to get x by itself.

So with

17 = x - 28

The step you want to do is to add 28 to both sides.

17 + 28 = x - 28 + 28

This makes makes the equation

17 + 28 = x

45 = x

Answer:

35

Step-by-step explanation:

Let's solve your equation step-by-step.

17=x−18

Step 1: Flip the equation.

x−18=17

Step 2: Add 18 to both sides.

x−18+18=17+18

three to the fifth power
answer please​

Answers

Answer:

243

Step-by-step explanation:

Answer:

243

Step-by-step explanation:

i would like to know this question and can you show your work to so I can understand

Answers

Answer:

162

Step-by-step explanation:

a=[tex]\frac{a+b}{2} h[/tex]

a=base and the base is 13 ft.

b= also means base which is 23 ft.

h= height which is 9 ft.

so 13+23 is 36

36/2 is 18

and 18 times 9 is 162

sorry for the lengthy answer but i hope this helps :) have a nice day !!

a 5/18
b 1/2
c 5/9
d 9/10​

Answers

Answer:It should be 5/9 as its the only one that is probable,

Step-by-step explanation:

If its not 1/2 its not 9/10 so that automautically declines 2 answers leaving 5/18 and 5/9. And 5/18 is way to little for a 36 to 20 ratio, so that leaves 5/9.

Please help.
Is algebra.

Answers

Answer: 2m^4 n^2 it’s option D

The correct answer is D.

Simplify the expression.
- 2.7f +0.31 - 14 – 5,

Answers

Answer:

Step-by-step explanation:

−2.7f+0.31−14−5

=−2.7f+0.31+−14+−5

Combine Like Terms:

=−2.7f+0.31+−14+−5

=(−2.7f)+(0.31+−14+−5)

=−2.7f+−18.69

Answer:

=−2.7f−18.69

you should look up additon and multipcation cucaltor it helps

Which set(s) of numbers does 81−−√ belong to? Choose all that apply Natural numbers
Natural numbers

A Whole number
B Integers
C Rational Numbers
D Irrational Numbers

Answers

Answer:

All of the above

Step-by-step explanation:

3h + 4, where h = 7 pls help​

Answers

Answer:

25

Step-by-step explanation:

3 (7) + 4 =

21 + 4 = 25

good luck, hope this helps :)

Answer:

25

Step-by-step explanation:

1. we need to substitute h

so it would look like:

[tex]3(7)+4\\21+4\\25[/tex]

Hope this helps and answers your question! Have a great day/night!

Other Questions
What is wiretapping? Factor.64x225y2Enter your answer in the box. The question is Which circuit will have the greatest electric current? 1. Circuit 22. Circuit 13. Circuit 44. Circuit 3 The total budget for a school fundraiser is $350. Supplies and refreshments cost $140. The band for the event charges $70 each hour. What is the number of hours the school can have the band play?Which equation represents the situation? Which expression is equivalent to 7z + 7z? Help me with this problem m 1. 25 2. 80 3. 90^answers^ Here Its Go The Question Down Below 1 Sales tax5.00%Use the image to help you answer the question.Which formula will tell you the total "Before tax"price using cell references?A. =3+2+50B. =B8C. =B4+B5+B6D. =B4*B5*B6 How to find the missing numbers in two digit division Jillian has a doctor appointment at 10:20 a.M. If she takes 1 hour and 25 minutes to shower and dress, 25 minutes to eat breakfast and 30 minutes to drive to the doctor's office, what time should she wake up? first to answer gets brainleist! and 15-20 points ! ! i only need answers no step by step The binomial (x+2) is a factor of ?1). 2x^{2} -5+32). x^{2} +5x+183). x^{3} +5x^{2} + 18 4). x^{3} +5x+18 first quarter moonlast quarter moonnew moonfull moon Becca solved the division problem 1.8 0.3. Her work is shown below. Long division problem showing one and eight-tenths divided by three-tenths equals six-tenths Part A Use the drop-down menus to explain the mistake Becca made. Becca should have the dividend and the divisor by and moved the decimal point in the quotient to the . 1. Which type of information about rattlesnakesdoes the bar graph above show? SC.7.L.15.2A adaptationB evolutionCmimicryD variation A 15 n net force is used to move a 5kg box. What is the resulting acceleration?A. 15m/s^2B. 5m/s^2C. 20m/s^2D. 3m/s^2 14 minus a number equals the same number plus 8A) x= 4 b) x=5 C) x=7 D) x=3 Which word identifies the agent that carries the energy released from earthquakes? 1. Epicenter2. Focus3. Lithosphere4. Waves95 points, and plz hurry, thank you! Which graph represents the solution for the equation 1/2 x - 1 = -x + 2?