PLEASE HELP!!!!! EXPLAIN!!!!

Sam conducted a survey to find out the favorite weekend activity of the students in his middle school. He asked 20 of his classmates. He found out that the favorite weekend activity of his middle school is playing video games because 75% of the students he surveyed liked to play video games. Explain why Sam’s sample may not be valid. Provide 2 or 3 sentences of explanation with facts to support your answer. How could Sam improve his survey to be more representative of his school?

[tex]5(u + 5) + p(u + 5) = (p + 5)(u + 5)[/tex]

Hello!

First, we need to find the unit rate.

72 divided by 2 = 36.

36 x 9 = 324.

There were 324 pieces of paper to start with.

Hope this helps, ~Pooch ♥

Bella used 2/9 of a paper pack, equaling 72 pieces. To find the total number, we solve the proportion (2/9) * x = 72 to deduce that the pack initially contained 324 pieces.

Bella used 2/9 of a paper pack, which amounts to 72 pieces of paper. To find out how many pieces of paper were in the pack to begin with, we need to calculate the total amount of paper in the pack.

Let's set up a proportion where the total number of sheets is x. Since 2/9 of the total is 72, we can write the equation as follows:

So, the paper pack originally contained 324 pieces of paper.

If her balance is below 10, Chris must pay a few.

b = balance

Her balance was -$3.46. Then, Chris made a deposit, d, in ample time, so she did not have to pay a fee.

b + d > 10

b = -3.46

d > 10 - -3.46

Based on the information you provided, we can write an inequality to represent the situation. Chris's balance was -$3.46 and she made a deposit of d dollars. To avoid paying a fee, her balance must be greater than or equal to $10 on the statement date. So the inequality is: -3.46 + d >= 10. Solving for d, we get d >= 13.46. So Chris must have deposited at least $13.46 to avoid paying a fee.

Answer:

D

Step-by-step explanation:

When reflected across the Y it becomes B, but then across the X, it fits into D.

t = time

Multiply the acceleration by time and add to the height:

The equation becomes H(t) = -16 * t^2 + 90

set h(t) to 0

0 = -16*t^ +90

Subtract 90 from both sides:

-90 = -16*t^2

divide both sides by -16:

t^2 = -90 / -16

t^2 = 5.625

t = √5.625

t = 2.37 seconds, round to 2.4 seconds.

Answer: b

Step-by-step explanation: edge

ANSWER

C. 80

EXPLANATION

The longer diagonal is serving as the hypotenuse of the right triangles.

Let the longer side of the kite be x cm.

Then, from the Pythagoras Theorem, the sum of the length of the squares of the two shorter legs equals the square of the hypotenuse.

This means that,

[tex] {x}^{2} + {60}^{2} = {100}^{2} [/tex]

[tex] {x}^{2} + 3600 = 10000[/tex]

[tex] {x}^{2} = 10000 - 3600[/tex]

[tex] {x}^{2} = 6400[/tex]

[tex]x = \sqrt{6400} [/tex]

[tex]x = 80cm[/tex]

Answer:c

Step-by-step explanation:

The answer is B rhombus because you can split a rhombus in half twice and have the same shape for both half

Answer: 29 feet.

Step-by-step explanation: The formula for the circumference of a circle is C = π d. In order to calculate the diameter of the tree we will use the same formula and solve for d.

91 = 3.14 x d

In order to solve for d you need to divide both sides for 3.14:

D = 28.98, rounded to the nearest foot is 29 feet.

Answer:

Wow just wow

Step-by-step explanation:

I have no clue sorry ;-;

An equation in standard form for a hyperbola with center (0, 0), vertex (0, 17), and focus (0, 19) is;  y²/172 – x²/(6√2)² = 1

We are given that the hyperbola has;

Center (0, 0), Vertex (0, 17) and Focus (0, 19)

The general form of equation of the given hyperbola has a form of;

y²/a²  - x²/b² = 1

Where;

±a is the y- coordinates of the vertices of the parabola (or y-intercepts).

b determines the asymptotes of the hyperbola in the equation y = ± (a/b)x.

From the vertex coordinates of (0.17), we have that; a = ± 17.

From the focus coordinates (0, 19), the y-coordinate of it is; c = 19 .

b can be found from Pythagorean theorem;

c² = a² + b²

Thus;

192 = 172 + b²

b² = 192 – 172

b² = 361 – 289

b = √72 = 6√2

The equation of the hyperbola is;

y²/172 – x²/(6√2)² = 1

Read more about Hyperbola Equation at; https://brainly.com/question/16735067

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The equation in standard form for a hyperbola with the given center, vertex, and focus is y² / 289 - x² / a² = 1.

The equation of a hyperbola in standard form is given by:

(x - h)² / a² - (y - k)² / b² = 1 or

(y - k)² / b² - (x - h)² / a² = 1

Given that the center is (0,0) and the vertex is (0,17), we can see that the hyperbola is vertically oriented. Therefore, we can use the form (y - k)² / b² - x² / a² = 1.

Since the center is (0,0), the value of (h, k) is (0,0).

The distance between the center and the vertex is 17 units, which corresponds to the value of b.

The distance between the center and the focus is 19 units, which corresponds to the value of c.

Substituting these values into the equation gives: (y - 0)² / 17² - x² / a² = 1

The equation in standard form for the hyperbola is therefore y² / 289 - x² / a² = 1

https://brainly.com/question/27799190

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Answer: [tex]421.56+20g+\frac{k}{4}[/tex]

Step-by-step explanation:

You have the following information given in the problem above:

- She had $421.56 in her checking account.

- She she deposited g $20 bills  (which you can rewrite: [tex]20g[/tex]) and k quarters (which you can rewrite as folllowing:[tex]\frac{k}{4}[/tex]).

Therefore, the amount of money in her account after the deposit is the sum of the amoun she had in her account plus the amoun of money she deposited.

Then, you can write the following expression:

[tex]421.56+20g+\frac{k}{4}[/tex]

Answer:

421.56 + 20g + 1/4 k

Step-by-step explanation:

Joby had $421.56, and she deposited g $20 bills, and k quarter:

We don´t know how many $20 bills she deposited but we know it is expressed by the letter g, so she deposited $20g, and we add to that how many quarters of a dollar she added, in this case, we know that she deposited k quarters or 1/4 k dollars.

To write an expression to know the amount of money she has after the deposit we have to add:

What she had before the deposit = $421.56

The Dollars in $20 bills, we know it is = 20g

The number of dollars in a quarter of a dollar = 1/4 k

So we write:

421.56 + 20g + 1/4k

Answer:

The correct option is 2.

Step-by-step explanation:

From the given number line it is clear that there are 4 jumps of 2 units in opposite direction.

After first jump, the total covered distance is

[tex]-(2)\times (1)=-2[/tex]

After second jump, the total covered distance is

[tex]-(2)\times (2)=-4[/tex]

After third jump, the total covered distance is

[tex]-(2)\times (3)=-6[/tex]

After fourth jump, the total covered distance is

[tex]-(2)\times (4)=-8[/tex]

It means the product (-2)(4) is modeled by the given number line.

Therefore the correct option is 2.

Answer:

Group A has 20 students

Group B has 30 students

Step-by-step explanation:

The mean score of 50 students is 54%, so the sum of 50 scores, divided by 50 is 54%.  That means that 50(0.54) = 27 points were scored between the 50 students.

Let x represent the number of students in Group A

Let y represent the number of students in Group B

We have

0.6x + 0.5y = 0.54(50)    (the points scored, times their averages is the total)

and

x + y = 50

Use substitution to solve...solve the second equation for one variable...

x = 50 - y

Now plug that into the first equation...

0.6(50 - y) + 0.5y = 27

     30 - 0.6y + 0.5y = 27

             -0.1y = -3

                   y =  30

So there are 30 students in group B, therefore there are 20 students in group A          

Answer:

2

Step-by-step explanation:

I don't think you are asked to prove that these triangles are similar. The diagram leads you to believe that they are. The easiest way to solve this is to take 2 corresponding lines and compare them.

So how do you get from FE to BA

BA / FE = 6/3

BA = 6

FE = 3

BA / FE = 6/3

BA / FE = 2

The scale factor is 2

Answer: 5>y

Step-by-step explanation:

Answer:

y + 5

Step-by-step explanation:

5 more than y

y + 5

Answer:

108

Step-by-step explanation:

1 foot has 12 inches

9x12=108

Answer:

x = - 5

Step-by-step explanation:

Given

- 3x + 5 > 17 ( subtract 5 from both sides )

- 3x > 12 ( divide both sides by - 3 )

Remembering to reverse the inequality symbol when dividing/ multiplying by a negative quantity.

x < - 4 ← symbol reversed

The value of x that is in the solution set is x = - 5

The solution to the equation a - 5 = -2 is a = 3. You solve it by adding 5 to both sides, which isolates the variable 'a'.

To solve the equation a - 5 = -2, you need to isolate the variable 'a' on one side of the equation. You can do this by adding 5 to both sides of the equation. Here's the step-by-step process:

Start with the original equation: a - 5 = -2.

Add 5 to both sides: a - 5 + 5 = -2 + 5.

Simplify each side: a = 3.

The answer to the equation is a = 3.

To solve the equation a - 5 = -2, add 5 to both sides which gives us a = 3 as the solution.

The question is asking us to solve the equation a - 5 = -2 for the variable a. To isolate a on one side of the equation, we need to undo the subtraction of 5. We can do this by adding 5 to both sides of the equation:

a - 5 + 5 = -2 + 5

Which simplifies to:

a = 3

Thus, the value of a that solves the equation is 3.

Answer:

9-0+1-1×2

Step-by-step explanation:

Answer:

10+8, (6÷3)x4, (9-1)+ (5x2)

Step-by-step explanation:

Thats all my brain can think of

Answer:

5y + 10

Step-by-step explanation:

simply open the brackets by multiplying everything by 5;

5(y+2) = 5y + 10

5y + 10 is the expression that is equivalent to 5( y + 2)

Answer:

Step-by-step explanation:

5y+10

Step-by-step explanation:

2/5 is equal to 4/10, or 40 percent.

Therefore 40 percent of 120 is 120*.4, or 48

Answer:

96

Step-by-step explanation:

The area of a parallelogram is A = b*h. Substitute b = 8 and h= 6 to find the area.

A = 8*6 = 48

The area of a triangle is A = 1/2 b*h. Substitute h = 6 and b = 16 since the triangle has a length of 8 as well as the whole parallelogram.

A = 1/2 *16*6 = 48

Together the areas equal 48 + 48 = 96

Answer:

The answer is 200000000

Step-by-step explanation:

You take all the numbers and follow the order of operations.

1/20 x 2=

0.1 x 40=

4 x 1000000=

4000000/2=

2000000

Answer:

100²⁰⁰⁰⁰⁰⁰

Step-by-step explanation:

1/20 = .05 // .05*2 = .1 /// .1*40= 4 /// 4* 1000000 = 4000000 /// 4000000/2 = 2000000 so 100^ 1/20x2x40x1000000/2=100²⁰⁰⁰⁰⁰⁰

Answer:

i believe it is "5!"

Step-by-step explanation:

1x2x3x4x5=120

but the answer is "5!" ( include the exclamation point)

hope this helps (again)

Answer:

5! or 120.

Step-by-step explanation:

Think about this logically:

You have 5 players to start off with, so you have 5 players that can go in the first position.

That leaves you with 4 players. Any one of those 4 players can go in the second position.

And then there were 3 players. Any one of those 3 players can go in the third position.

2 to go! Pick your favorite player out of the 2 available to go in the fourth position.

And that leaves just one player who has to go last.

This can be modeled as: 5x4x3x2x1, or 5!, which equals 120 unique permutations.

10% of $42.87 = 10/100 × 42.87

= 4.287

Ans = $4.29

Happy to help! Marking my answer as the Brainliest would really be aprreciated.

Answer:

[tex]\large\boxed{(6,\ 2)}[/tex]

Step-by-step explanation:

[tex]y-x<-3\qquad\text{add}\ x\ \text{to both sides}\\\\y<x-3\\\\\text{Put the values of x and y from the coordinates of the points and check inequality}\\\\(6,\ 2)\to x=6,\ y=2\\2<6-3=3\qquad\text{CORRECT\ :)}\\\\(2,\ 6)\to x=2,\ y=6\\6<2-3=-2\qquad\text{FALSE\ :(}\\\\(2,\ -1)\to x=2,\ y=-1\\-1<2-3=-1\qquad\text{FALES\ :(}[/tex]

Answer:

4

Step-by-step explanation:

Here's all the steps, let's just remove all this confusing garbage with the adding negatives first.

6-(-3-7)-(-1+5+8)

Remember, subtracting a negative makes it positive.

6-(-10)-(12)

6+10-12

16-12

4

The expression 6–[(−3)+(−7)]–[(−1)–(−5)–(−8)] simplifies to 2 after solving the operations inside the brackets and applying the order of operations correctly.

The question asks to simplify the expression 6–[(−3)+(−7)]–[(−1)–(−5)–(−8)]. Let's break it down step by step.

Therefore, the simplified expression is 2.

Answer:

Option b $2,770.25

Step-by-step explanation

Chyra owned shares of stock, details are :

Name of Fund - CAH Group

NAV - $15.83

Offer Price - $16.27

Chyra redeemed stock = 175 shares

As we know shares can be redeemed on NAV price.

Chyra's proceeds = 175 × 15.83 = $2,770.25

Chyra's proceeds were $2,770.25.

Answer:

B

Step-by-step explanation:

$2,770.25

Answer:

B. Square, Rectangle.

Step-by-step explanation:

The correct answer is B. Square, Rectangle.

A square will always have four equal angles and sides.

A rectangle will not have equal sides, but will always have angles of 90 degrees, as does the square.

Hope this helps!

Final answer:

Quadrilaterals with four equal angles are rectangles and squares since they both have four right angles. The correct answer is B: Square, Rectangle.

Explanation:

The question asks us to name the quadrilaterals that have four equal angles. A quadrilateral is a polygon with four sides and four angles. When all the angles in a quadrilateral are equal, they have to be right angles (each measuring 90°) since the sum of all angles in any quadrilateral is 360°. Thus, the types of quadrilaterals with four right angles are:

Rectangle: All four angles are right angles, and opposite sides are equal.

Square: It has all the properties of a rectangle but with the added feature that all four sides are also equal.

Therefore, the rectangles and squares are the quadrilaterals that have four equal angles.

A rhombus has four equal sides, but the angles are not necessarily right angles. A parallelogram has opposite angles that are equal, which does not guarantee that all four angles are equal unless it's a rectangle. Trapezoids generally do not have four equal angles. Therefore, the correct answer to the question is option B: Square, Rectangle.

the area of the trapezoid is 9

Answer:

A = 7.5 unit^2

Step-by-step explanation:

The area of a trapezoid is found by

A =1/2 (b1+b2) *h

b1 = 1 unit

b2 = 4 units  

h = 3 units

I found these by counting on the graph

A = 1/2(1+4) *3

A = 1/2(5)3

A = 7.5 unit^2