a school board member surveys parents to learn how they feel about the new school boundaries. Mrs. Donovan shares an example of a random sample and Mr.Giles shares an example of a sampling method that is not random. What could they have shared?

Answer: the answer is 27.92

Step-by-step explanation: if you right it vertical and line the desimals you will get the answer

Answer:

a) Infinite solutions = intersect at every point (2 of the same line)

m = rise/run = 3/2

b = y-intercept = (0, -3)

y = 3/2x - 3

b) No solutions = no point of intersection (parallel lines)

m = 3/2 (same slope b/c parallel)

b = (0, 2)

y = 3/2x + 2

c) One solution = one point of intersection

Solution = (4, 3)

y - y₁ = m (x - x₁)

y - 2 = m (x - 2)

m = [tex]\frac{y2-y1}{x2-x1}=\frac{3-2}{4-2} =\frac{1}{2}[/tex]

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

y = 1/2x + 1

Check to see if (4, 3) is the solution to the system:

y = 1/2x + 1

y = 3/2x - 3

1/2x + 1 = 3/2x - 3

1 = 2/2x - 3

x = 4 ✅

y = 1/2(4) + 1 = 3 ✅

I hope this helps!

Answer: its a and the person above me is correct

Step-by-step explanation:

Answer:

Positive correlation

Step-by-step explanation:

Overall as x increases, y increases.

Hope this helps!

Answer:

10 Classroom

Step-by-step explanation:

Since,

Custodian clean 2 classrooms in 15 minutes

Then ,

Let's see how many minutes does it takes for a custodian to clean for 1 classroom

To Find that we have to divide the given minutes by the given classroom.

15/2 = 7.5

Hence, in 7.5 minutes a custodian clean 1 classroom

Therefore:

Classroom to minutes:

1 = 7.5

2 = 15

3 = 22.5

4 = 30

5 = 37.5

6 = 45

7 = 52.5

8 = 60

9 = 67.5

10 = 75

11 = 82.5

Hence, we round to the nearest number:

which is 10 classroom in 75 minutes.

For this reason, the answer is about 10 classroom

~lenvy~

The cost of one box of paper clips is $1.85 and the cost of one package of index cards is $3.95

Step-by-step explanation:

Eldora and Finn went to an office supply store together

Eldora bought 15 boxes of paper clips and 7  packages of index cards for a total cost of $55.40

Finn bought 12 boxes of paper clips and 10 packages of  index cards for a total cost of $61.70

We need to find the cost of one box of paper clips and the cost of one package of  index cards

Assume that the cost of one box of paper clips is $x and the cost of one package of  index cards is $y

∵ x represents the cost of one box of paper clips

∵ y represents the cost of one package of  index cards

∵ Eldora bought 15 boxes of paper clips and 7  packages of

  index cards for a total cost of $55.40

∴ 15x + 7y = 55.4 ⇒ (1)

∵ Finn bought 12 boxes of paper clips and 10 packages of  

  index cards for a total cost of $61.70

∴ 12x + 10y = 61.7 ⇒ (2)

Now we have system of equations to solve it

Multiply equation (1) by -10 and equation (2) by 7 to eliminate y

∵ -10(15x) + -10(7y) = -10(55.4)

∴ -150x - 70y = -554 ⇒ (3)

∵ 7(12x) + 7(10y) = 7(61.7)

∴ 84x + 70y = 431.9 ⇒ (4)

Add equations (3) and (4)

∵ (-150x + 84x) + (-70y + 70y) = (-554 + 431.9)

∴ -66x = -122.1

- Divide both sides by -66

∴ x = 1.85

Substitute the value of x in equation (1) or (2) to find y

∵ 12(1.85) + 10y = 61.7

∴ 22.2 + 10y = 61.7

- Subtract 22.2 from both sides

∴ 10y = 39.5

- Divide both sides by 10

∴ y = 3.95

The cost of one box of paper clips is $1.85 and the cost of one package of index cards is $3.95

(this is an answer I got previously)

Answer: The correct answer for this question is this one: "(10-y)^2". Ociel has designed a square mural that measures 10 feet on each side. Bill has also designed a square mural, but his measures y feet shorter on each side.

Step-by-step explanation:

Area of Ociel's mural = 10 * 10 = 100 ft^2

Area of Bill's mural = (10-y)^2

Answer:

The correct answer for this question is this one: "(10-y)^2". Ociel has designed a square mural that measures 10 feet on each side. Bill has also designed a square mural, but his measures y feet shorter on each side.

Area of Ociel's mural = 10 * 10 = 100 ft^2

Area of Bill's mural = (10-y)^2

Step-by-step explanation:

them above me is correct!

Answer:

We will have a new angle \theta_{new}=143^{\circ}θ

new

=143

∘

Step-by-step explanation:

If we rotate this angle 90 degrees counterclockwise we just need to add both angles, which means:

\theta_{new}=44^{\circ} + 99^{\circ}=143^{\circ}θ

new

=44

∘

+99

∘

=143

∘

Therefore, we will have a new angle \theta_{new}=143^{\circ}θ

new

=143

∘

I hope it helps you!

Answer:

Fraction 1: 3/5

Fraction 2: 3/4

3 x 3 = 9

5 x 4 = 20 :)

Hope this helps!!

Please rate and mark brainliest!!!

Have an amazing day!!

Three real-world examples of constant rate:

Driving a Car.

Filling a Bathtub.

Interest on a Loan.

Speed is the ratio of the given distance and time.

It shows how fast an object is moving at a given time.

The formula is Distance / Time.

We can find the distance or time when the required values are given using this formula.

We have,

Here are three real-world examples of constant rate:

Driving a Car:

If a car is traveling at a constant speed of 60 km/h, it will cover a distance of 60 kilometers in one hour, regardless of the terrain, traffic, or weather conditions.

The car's speed is constant.

Filling a Bathtub:

If you are filling a bathtub with a faucet that is delivering water at a constant rate, the water level in the tub will rise at a constant rate until the tub is full.

Interest on a Loan:

If you take out a loan with a fixed interest rate, the interest will accrue at a constant rate over time, as long as you make your payments on time.

Thus,

Three real-world examples of constant rate:

Driving a Car.

Filling a Bathtub.

Interest on a Loan.

Learn more about speed here:

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Answer:

50% i think

Step-by-step explanation:

Answer:

a=3

Step-by-step explanation:

[tex]2a + 6 = 12[/tex]

[tex]2a+6-6=12-6[/tex] ( Subtract 6 from both sides)

[tex]2a=6[/tex] ( Simplify)

[tex]\cfrac{2a}{2}=\cfrac{6}{2}[/tex] (Divide both sides by 2)

[tex]a=3[/tex]

~

Answer:

2a+6=12

2a=12-6

a=6/2

a=3

Answer:

The answer is 192.33

Step-by-step explanation:

A coaster measures 7 cm in diameter. The total area of five roller coasters must be determined.

The diameter of the coaster is d = 7 cm

The radius is:

[tex]r =[/tex] [tex]\frac{d}{2}[/tex]

[tex]=[/tex] [tex]\frac{7}{2}[/tex] [tex]cm[/tex]

[tex]= 3.5[/tex] [tex]cm[/tex]

The area of the circle is:

[tex]A =[/tex] [tex]\pi r^{2}[/tex]

= (3.14 x 3.5^2) [tex]cm^{2}[/tex]

[tex]= 38.465[/tex] [tex]cm^{2}[/tex]

We now know that the area required for five coasters is 5 x 38.465 [tex]cm^{2}[/tex]

[tex]= 192.325[/tex] [tex]cm^{2}[/tex]

Round 192.325 to the nearest hundredth and you'll get 192.33 as the correct answer.

I hope this helps! ^-^

Answer:

-20,-30,-40,-44.......

There are infinite solutions.

Step-by-step explanation:

A negative multiplied by a negative is a positive. So that would make the answer positive. You can uses any negative number above 6.

Answer:

There are infinite solutions.

Step-by-step explanation:

A system of linear equations can have infinite solutions if the equations are equivalent. This means that one of the equations is a multiple of the other. It also means that every point on the line satisfies all of the equations at the same time.

Answer:

28.26 ft²

Step-by-step explanation:

Formula

Given :

Solving :

Answer:

28.26 feet²

Step-by-step explanation:

Substitute the radius in the formula:

⇒ Area of circular rug = πr²

⇒ Area of circular rug = π(6/2)²                                   [Diameter/2 = Radius]

Simplify the R.H.S:

⇒ Area of circular rug = π(3)²

⇒ Area of circular rug = π(9)                                              [(3)² = 3 × 3 = 9]

Take π as 3.14 and simplify:

⇒ Area of circular rug = (3.14)(9)

⇒ Area of circular rug = 28.26 feet²   (Using calculator)

Answer:

Answer: The square is made of 4 congruent triangles.....Moving two of the triangles changes the figures shape....Step-by-step

explanation: Hope this help Cutieboyz

Sorry thats just my nickname for boys if u even are one lol

TYYYYYY

The number of purple T shirts that the Trenton's scouting group made is 15.

A pie chart is a type of graph where a circle is divided into certain sectors where each sector shows a proportion of the whole.

Given is a pie chart or circle graph.

This shows the number of different colored T shirts that the Trenton's scouting group made.

Total number of T shirts = 100

Total degree of a circle = 360°

The circle is divided in to various sections with each section of different degree.

Angle measure for the purple section = 54°

Proportion of purple T shirts to the full T shirts = 54 / 360

                                                                             = 0.15

Number of purple T shirts in total of 100 T shirts = 0.15 × 100

                                                                                = 15

Hence the number of purple T shirts made is 15.

Learn more about Pie Charts here :

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Answer:

12.12m

Step-by-step explanation:

because math

Answer:

x=9

that what I found atleast hope it helps

Answer: x=9

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Setting up long division we get:

Answer:

120

Step-by-step explanation:

5x-5

Let x = 25

Substitute into the expression

5(25) - 5

Multiply

125 -5

Subtract 120

Answer:

120

Step-by-step explanation:

If X = 25

where you see X , you put 25 there

5X - 5

5(25) - 5

125 - 5

= 120

Answer:

61 degrees

Step-by-step explanation:

180-(58+61)=61

Answer:

10 ft x 20ft

2 ft x 100ft

40ft x 50ft

1 ft x 200 ft

4ft x 50ft

5ft x 40ft

8ft x 25ft

Step-by-step explanation:

Answer:

Your answer would be A. RSTU results from a translation of ABCD is not true.

Step-by-step explanation:

when you look at the images, it states the figure RSTU backwards, meaning, that it had to be reflected over the y-axis at some point, not a translation because a translation could not reflect a figure like a reflection can.

Length of part A:-

Length of path B

Now convert to miles

Path B:-

Path A:-

Chris may made error in decimals