Select the correct answer.
A school supervisor wants to determine the percentage of students that bring their lunch to school.
Which of the following methods would assure random selection of a sample population?

ITS NOT "A" please help ill mark you the brainlyest!!!!

Select The Correct Answer.A School Supervisor Wants To Determine The Percentage Of Students That Bring

Answers

Answer 1
I would go B because it makes the most sense he wants a Random group
Answer 2

Answer:

B

Step-by-step explanation:


Related Questions

Please help me on my math assignment you have to write an inequality that models the combinations of multiple choice and essay questions you could answer during the test without running out of time.

Answers

Answer:

x + 15y ≤ t

Step-by-step explanation:

From the table we see that:

Each multiple choice question takes 1 min and each essay takes 15 min to complete.x multiple choice questions will take x min and y essays will take 15y minTotal time required is x + 15y

If you have t minutes to complete the test then required inequality is:

x + 15y ≤ t

Last year, there were 120 students in the
marching band. This year, there are 138.
What is the percentage of increase or decrease?

Answers

Answer:

The increase is 15%

Step-by-step explanation:

Hope this helps!

What is the interest rate if…

Principal = $1,250

Time = 4 years

Interest = $285.

Answers

The interest rate is 5.7%

Help me please thanks

Answers

Replace x any with the given values:

x/y = 9/3 = 3

The answer is 3

Hank and Rosa play the following game: A bag has 15 tiles in it, each with a letter from the phrase probability game on it. Hank and Rosa take turns drawing a tile, recording the letter, and placing the tile back in the bag. Hank earns a point if he draws a vowel. Rosa earns a point if she draws a consonant. They decide that the letter y can be a vowel or a consonant. Which statement best explains whether or not the game is fair?

A. The game is not fair because the probability of Hank drawing a winning letter is less than the probability of Rosa drawing a winning letter.

B. The game is fair because Hank and Rosa have the same probability of drawing a winning letter.

C. The game is fair because both Hank and Rosa will get a point if the letter y is drawn.

D. The game is not fair because the probability of Hank drawing a winning letter is greater than the probability of Rosa drawing a winning letter.

Answers

Answer:

A

Step-by-step explanation:

There are 8 consonants (not including y) and only 6 vowels (not including y), so Rosa has a higher probability of winning.

The game is not fair because the probability of Hank drawing a winning letter is less than the probability of Rosa drawing a winning letter.

What is probability?

'Probability is defined as the possibility of an event to happen is equal to the ratio of the number of outcomes to the total number of outcomes.'

According to the given problem,

There are 8 consonants (not including y) and only 6 vowels (not including y), so Rosa has a higher probability of winning.

Hence, we can conclude that the game is not fair the probability of Hank drawing a winning letter is less than the probability of Rosa drawing a winning letter.

Learn more about probability here:

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a bed room set is being sold for $5500 if bought cash​

Answers

Answer:

$5700 - $5500= $200

Explanation:

The total installments: 24 ($175) = $4200

The hire purchase price: $1500 + $4200 = $5700

The amount saved by paying cash: $5700 - $5500= $200

What is the sum of the polynomials?
(6x + 7 + X ²) + (2x² - 3)
0 -X2+6x+4
3x2 +6x+4
9x + 4
O 9x2 +4

Answers

Answer:

B) 3x^2+6x+4

Step-by-step explanation:

(6x+7+x^2)+(2x^2-3)

6x+7+x^2+2x^2-3

3x^2+6x+7-3

3x^2+6x+4

The sum of the polynomials is 3x² + 6x + 4.

What are Polynomials?

Polynomials are mathematical expressions which consist of one or more terms involving variables and coefficients connected with operations like multiplication, subtraction, addition and natural number powers of variables.

Given are two polynomials whose sum has to be found.

(6x + 7 + x ²) and (2x² - 3).

The sum of the polynomials is,

(6x + 7 + x ²) + (2x² - 3)

We have to operate the like terms together.

= (6x) + (7 - 3) + (x² + 2x²)

= 6x + 4 + 3x²

= 3x² + 6x + 4

Hence the sum of the polynomials is 3x² + 6x + 4.

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If the center of a circle is at (a, b) and the radius of the circle is c, how would you write the equation of the circle?

Answers

Answer:

Step-by-step explanation:

(x-a)² + (y-b)² = c²

Which of the following statements must be true based on the diagram below? Answer correctly !!!!!!!! Will mark brainliest !!!!!!!!!!!!

Answers

Answer:

3rd one

Step-by-step explanation:

A mountain climber found that the relationship between his altitude and the surrounding air
temperature is linear. The function f (a) = - -100 a + 75 represents this relationship, where a
is the altitude in meters and f(a) is the temperature in degrees Fahrenheit. According to this
function, by how much is the temperature decreasing for every meter that the mountain climber's
altitude increases?
IF
100
O IF
100
75 F
-75F

Answers

Answer:- 1/100 degrees Fahrenheit

Step-by-step explanation:

The directions say decreasing so it has to be negative, and the slope is showing how much it is decreasing every meter. y=mx+b. The mx is the slope which is where the answer is located.

its the last answer thanks :)

Answers

Answer:

(7,0)

Step-by-step explanation:

Which of the following sets of side lengths could produce a triangle? Select
all that apply.
13 mm, 5 mm, and 6 mm
2 cm, 7 cm, and 6 cm
2 m, 5 m, and 7 m
6 ft, 6 ft, and 12 ft

Answers

6ft, 6ft, and 12ft !

The sets of side lengths that can produce a triangle are

2 cm, 7 cm, and 6 cm2 m, 5 m, and 7 m6 ft, 6 ft, and 12 ft

The triangle inequality theorem states that the sum of any two sides of a triangle is greater than or equal to the third side.

That is, in a given triangle of sides a, b and c,

a + b ≥ c

Analysing the sets of the side lengths given,

In triangle 2 cm, 7 cm, and 6 cm,

2 + 6 = 8,

Therefore 8cm which is greater than the third side being 7cm makes this side lengths possible to produce a triangle.

In triangle 2 m, 5 m, and 7 m,

2 + 5 = 7

Addition of both sides of the triangle is equal to the third side being 7m.

In triangle 6 ft, 6 ft, and 12 ft,

6 + 6 = 12

Addition of both sides of the triangle is equal to the third side being 12ft

Therefore the sets of side lengths could produce a triangle are

2 cm, 7 cm, and 6 cm

2 m, 5 m, and 7 m

6 ft, 6 ft, and 12 ft

Learn more here:

https://brainly.com/question/18548908

what is 4/5 as a whole number

Answers

Answer: 4 over 5 is not a whole number and so it cannot be expressed as a whole number.

Step-by-step explanation:

find the value of given expression

[tex] \sqrt{9 \times 81 \times 9} [/tex]

Answers

Answer:

√{9×81×9}=√(9²×9²)=±(9×9)=±81

Answer:

your answer will be 81

Step-by-step explanation:

.......

Need help in math will give brain if right

Answers

Answer:

c)

Step-by-step explanation:

Part B The manager of The Gadget Factory wants to make sure that the next shipment costs no more than $15,000. Write an inequality that shows the amount of money that can be spent. Graph the inequality on the number line. Let n=the amount of money spent.

Answers

Answer:

Part B The manager of The Gadget Factory wants to make sure that the next shipment costs no more than $15,000. Write an inequality that shows the amount of money that can be spent. Graph the inequality on the number line. Let n=the amount of money spent.

Step-by-step explanation:

The inequality equation is n ≤ 15,000 , where n is the amount of money spent

What is an Inequality Equation?

Inequalities are the mathematical expressions in which both sides are not equal. In inequality, unlike in equations, we compare two values. The equal sign in between is replaced by less than (or less than or equal to), greater than (or greater than or equal to), or not equal to sign.

In an inequality, the two expressions are not necessarily equal which is indicated by the symbols: >, <, ≤ or ≥.

Given data ,

Let the inequality equation be represented as A

Now , the value of A is

Let the amount of money spent be represented as n

And , the next shipment costs no more than $15,000

So , n ≤ 15,000   be equation (1)

Therefore , the value of A is n ≤ 15,000 and the graph is plotted

Hence , the inequality equation is n ≤ 15,000

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I have a question on triangle congruence its a homework assignment ​

Answers

What’s the question man?

you roll a die twice. What is the probability of rolling a 3 and then a 4?

Answers

Answer:

1/36

Step-by-step explanation:

P(rolling a 3) and P(rolling a 4)

= 1/6 and 1/6

=(1/6)(1/6)

=1/36

Winnie when she fell asleep sitting up so she just kept going back lol now I’m on a rampage posting my cats :,)

Answers

Answer:

that's an adorable little baby.

Step-by-step explanation:

Answer:

its cute

Step-by-step explanation:

are these triangles congruent ?

Answers

Answer:

yes

Step-by-step explanation:

from sss axiom

we can say that they are congurqnt

the sum of 2 consecutive integers is three times their difference what is the larger number​

Answers

Answer:

2

Step-by-step explanation:

Let the two consecutive integers be x , x+1

Sum : x + x +1 = 2x + 1

Difference: (x +1) - 1 = x + 1 - 1 = x

Sum = 3 times their difference

2x + 1 = 3 * x

2x + 1 = 3x    

      1 = 3x - 2x

     1 = x

The numbers are 1 , 2

Explain what is a SYSTEM OF LINEAR EQUATIONS?

Answers

is just a set of two or more linear equations. In two variables (x and y) , the graph of a system of two equations is a pair of lines in the plane.

(-15)-(-18) divided by 3

Answers

Answer:

The answer is (-9)

Step-by-step explanation:

The solution is, the result of the division is 1.

What is division?

Division is the process of splitting a number or an amount into equal parts. Division is one of the four basic operations of arithmetic, the ways that numbers are combined to make new numbers. The other operations are addition, subtraction, and multiplication.

here, we have,

given that,

(-15)-(-18)

now we have to divide this by 3

so, we get,

(-15)-(-18) /3

now,

(-15)-(-18)

= -15 + 18

=3

so, we have,

(-15)-(-18) /3

=3 /3

=1

Hence. The solution is, the result of the division is 1.

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What is the area of a circle with a radius of 4 cm? Give your answer in terms of pi.

(This is a math question from flocabulary, and I really need help!!)

Answers

Answer:

r = the radius, in your case, it's 4 cm. So. Area = π ×r2. = π× (4 cm)2. = 16π cm2 ≈ 50.24 cm2.

Step-by-step explanation:

RHOMBUS The diagonals of rhombus ABCD intersect at E. Given that

mZBAC = 53° and DE = 8, find the indicated measure.

B

А.

53°

mZAED

m2 DAC

m ZADC

AE

DB

8

E

с

AC

D

11. Name the four isosceles triangles in rhombus ABCD.

12. Name three properties of AC and BD.

Answers

Answer:

Question 11:

[tex]\angle DAC = 53^\circ[/tex]

[tex]\angle AED = 90^\circ[/tex]

[tex]\angle ADC = 74[/tex]

[tex]DB = 16[/tex]

[tex]AE = 6.03[/tex]

[tex]AC = 12.06[/tex]

Question 12:

[tex]\triangle ABD[/tex], [tex]\triangle BAC[/tex], [tex]\triangle CDA[/tex] and [tex]\triangle DAB[/tex]

Question 13:

AC and BD are perpendicular lines, and they are diagonals

Step-by-step explanation:

Question 11

Given

[tex]\angle BAC = 53^\circ[/tex]

[tex]DE = 8[/tex]

See attachment for Rhombus

Required

Determine the indicated sides

Solving (a): [tex]\angle DAC[/tex]

Diagonal CA divides [tex]\angle DAB[/tex] into 2 equal angles

i.e

[tex]\angle DAC = \angle BAC[/tex]

So:

[tex]\angle DAC = 53^\circ[/tex]

Solving (b): [tex]\angle AED[/tex]

The angles at E is 90 degrees because diagonals AC and BD meet at a perpendicular.

So:

[tex]\angle AED = 90^\circ[/tex]

Solving (c): [tex]\angle ADC[/tex]

First, we calculate [tex]\angle ADE[/tex], considering [tex]\triangle ADE[/tex]:

[tex]\angle ADE + \angle AED + \angle DAC = 180[/tex]

[tex]\angle ADE + 90 + 53 = 180[/tex]

[tex]\angle ADE + 143 = 180[/tex]

[tex]\angle ADE = -143 + 180[/tex]

[tex]\angle ADE = 37[/tex]

To calculate [tex]\angle ADC[/tex], we have:

[tex]\angle ADC = 2*\angle ADE[/tex]

[tex]\angle ADC = 2* 37[/tex]

[tex]\angle ADC = 74[/tex]

Solving (d): [tex]DB[/tex]

From the rhombus

[tex]DB = DE +EB[/tex]

Where

[tex]DE =EB[/tex]

So:

[tex]DB = 8 + 8[/tex]

[tex]DB = 16[/tex]

Solving (e): [tex]AE[/tex]

To do this we consider [tex]\triangle ADE[/tex]

Using the tan formula

[tex]tan(\angle ADE) = \frac{AE}{DE}[/tex]

[tex]\angle ADE = 37[/tex] and [tex]DE = 8[/tex]

So:

[tex]\tan(37) = \frac{AE}{8}[/tex]

[tex]AE = 8 * \tan(37)[/tex]

[tex]AE = 6.03[/tex]

Solving (f): [tex]AC[/tex]

This is calculated as:

[tex]AC = AE + EC[/tex]

Where

[tex]AE = EC[/tex]

[tex]AC = 6.03 +6.03[/tex]

[tex]AC = 12.06[/tex]

Question 12: Isosceles Triangle

In the rhombus, all 4 sides are equal;

So, the isosceles triangle are:

[tex]\triangle ABD[/tex], [tex]\triangle BAC[/tex], [tex]\triangle CDA[/tex] and [tex]\triangle DAB[/tex]

Question 13:

AC and BD are perpendicular lines, and they are diagonals

840 Km in 12 hours.Whatis the average speed.

Answers

ANSWER:
70 km per hour

STEP BY STEP:
divide 840/12

hope this helps

Angela tried to solve an equation step by step. \begin{aligned} \dfrac34+m&=\dfrac54\\\\ \dfrac34+m-\dfrac34&=\dfrac54+\dfrac34&\green{\text{Step } 1}\\\\ m&=2&\blue{\text{Step } 2} \end{aligned} 4 3 ​ +m 4 3 ​ +m− 4 3 ​ m ​ = 4 5 ​ = 4 5 ​ + 4 3 ​ =2 ​ Step 1 Step 2 ​

Answers

Answer:

Angela's mistake is in step 1, she failed to change the sign when subtracting from both sides

Step-by-step explanation:

Equation given :

The correct solution should be :

3/4 - 3/4 + m = 5/4 - 3/4

m = 2/ 4

m = 1/2

Therefore failure to change the sign will result in a obtaining a wrong answer for the exercise.

m=1/2

hope this helps!

simplify the product using the distributive property.

(8b+5)(7b-2)=?

Answers

Answer:

5 6 2 + 1 9 − 1 0

Step-by-step explanation:

ixl i need help asap

Answers

Answer:

1. Baseball

2. Soccer ball

3. Football

Explantion:

Speed = Distance / time

Baseball --> 1270/32 = 39.69

Football --> 1199/44 = 27.25

Soccer ball --> 1270/44 = 28.86

Answer:

1. Baseball

2. Soccer ball

3. Football  

Formula= Speed = Distance / time

Baseball in fraction form is 1270/32 and in decimal form is 39.69

Football in fraction from is 1199/44 and in decimal form is 27.25

Soccer ball in fraction form is 1270/44 and in decimal 28.86

Hope this helps <3 Need thanks? Comment /hearthelp

y=3(50)x
Based on the previous problem, how many bacteria will there be in 8 hours?
A. 74
B. 6,611
C. 1,200
D. 328, 050

Answers

Answer:

y=3(50)×

y=3(50) 8

50×3=150

150×8=1,200

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