Members of a parenting organization want to use a two-sample t test to determine whether the average tuition for private schools in their state is significantly different for high school students than for elementary students. They plan to take tuition estimates from random samples of 10 schools serving each level.
Which of the following are conditions for this type of test?
A. Only sample from schools that include both elementary and high school.
B. The tuition estimates in each group are approximately symmetric with no outliers.
C. There are approximately equal numbers of private elementary schools and high schools in the state.

Step-by-step explanation:

I am not sure what you mean by A, B, and C.

the picture does not name the corners or vertices.

but is seemingly asks for the angle x.

remember, the sum of all angles in any triangle is always 180°.

and the sum of all angles around one point on one side of a line is also 180° (as the line cuts a virtual circle in half with its center being the point around which the angles rotate).

when we know all angles except for one, we call the missing angle a supplementary angle (fills up to 180°).

if the angle fills up to 90°, we call that a complementary angle.

so, now look at the triangle. we know 2 angles : the right angle (90°) and the 38° angle.

so, the third angle down left must be

180 - 90 - 38 = 52°

and x is the supplementary angle to 52° :

x = 180 - 52 = 128°

Answer: walk longer or faster

Step-by-step explanation:

she walks two times per week each for 35 mins

so she walks for 1:10 an our and ten mins a week

and she walks 3.0 miles per hour

so she walk a little over 3 mi a week

if she wants to ake it more intense she can walk for an hour each walk

Answer:

A. Walk at 3.5 miles per hour

Step-by-step explanation:

Intensity is how hard you work, so if she wants to improve her intensity she should walk at 3.5 miles per hour.

Hope this helps:)

If I have made a mistake please tell me, I enjoy learning from my mistakes:)

- - - - - - - - - - - - - - - - - - - - - - - - - - -

If 'he' wins 5 out of 13 games, that's an immediate ratio of 5:13.

- - - - - - - - - - - - - - - - - - - - - - - - - - -

Let's call him Max :)

Okay, now for the math.

I'm going to try a number line- but first, we have to know how many times 13 goes into 78.

- - - - - - - - - - - - - - - - - - - - - - - - - - -

78 / 13 = 6

So now we multiply the ratio (5:13) by six...

30:78

That's the answer!

- - - - - - - - - - - - - - - - - - - - - - - - - - -

Good luck!

~pinetree

Answer:

Last one is  EXPERIMENTAL

Step-by-step explanation:

Hope it helps!!!

The LCD of two rational expressions will have a degree greater than or equal to that of the denominator with the higher degree,

The least common denominator (LCD) of two rational expressions is the least common multiple (LCM) of the denominators. When adding or subtracting two rational expressions, the LCD is first determined before computation.

The LCD of two rational expressions will have a degree greater than or equal to that of the denominator with the higher degree,

Find out more on LCD at: https://brainly.com/question/24368819

Answer:

[tex]166\frac{2}{3} *x=y[/tex]

Step-by-step explanation:

[tex]\frac{500}{3} =166\frac{2}{3}[/tex]

Therefore, [tex]166\frac{2}{3} *x=y[/tex]

Answer:

true, because in a point it is (x,y) which the x moves left and right and the y moves up and down and the y axis goes straight up and down in the middle of the graph so the x would reflect from -9 to 9 because it is going across the y axis going up and down.

Step-by-step explanation:

take advantage of free food, in this case free answers.

Answer:

15a^5b^15

Step-by-step explanation:

There's a law of indices which states that when multiplying numbers, if they are the same, the power just add up.

So here 3a^2*5a^3 = 3*5a^2+3, which equals to 15a^5.

As for the b part of the terms, b^7*b^8 = b^7+8, which equals to b^15.

I hope this makes sense.

Answer:

option number 3

Step-by-step explanation:

15a^ 5 b^ 15

Answer:

10/15, or 2/3

Step-by-step explanation:

To get common denominator multiply 2/5 by three: 6/15

4/15 + 6/15 = 10/15

divide by 5: 2/3

Hey there!

4/15 + 2/5

≈ 4/15 + 6/15

≈ 4 + 6 / 15 - 0

≈ 10 / 15

≈ 10 ÷ 5 / 15 ÷ 5

≈ 2/3

Therefore, your answer is: 2/3

Good luck on your assignment & enjoy your day!

~Amphitrite1040:)

Answer:

lK = KE = 23cm

LI = LE = 27cm

Step-by-step explanation:

perimeter of kite LIKE =80cm

If IK=x cm

LI=(x-6) cm

Perimeter =2(a+b)

80 = 2(x+(x-6))

80 = 2(x+x-6)

80 = 2(2x-6)

80/2 = 2x-6

40 = 2x-6

2x = 40+6

2x = 46

x =46/2

x = 23

therefore,IK = 23cm

LI = 23-6 = 27cm

Answer:

x=45°

Step-by-step explanation:

By linear pair property

[tex]x+135=180[/tex]

[tex]x=180-135[/tex]

[tex]x=45^o[/tex]

~

Answer:

4032

Step-by-step explanation:

1 day is 1440 min

1440 divided by 10 = 144

144 times 4 = 576

576 times 7 (because there are 7 days in a week) = 4032

*I may be wrong if so im sorry*

Answer:

Chang will spend $44  on 11 pounds of candy. The possible amounts he will spend is $44.

Step-by-step explanation:

4x11=44 which is the answer and if you contract it it will make 44 pounds and 44 pounds is 176 so $176 is he had 44 pounds but he only has 11 so

$44

Answer:

$96

Step-by-step explanation:

Micheal's money = x

John's money = y

Ian's money = z

x + 18 = y

2/3x - 2 = z

x + y + z = $272

rearrange the equations we have:

2/3x = z + 2

x = 3/2(z + 2)

x = y - 18

Substitute y - 18 into x values:

3/2(z + 2) = y - 18

y - 18 + y + z = 272   --> 2y - 18 + z = 272

Solve for y:

Firstly rearrange

2y - 18 + z = 272    --> z = 272 + 18 - 2y, which simplifies to z = 290 - 2y

substitute into the formula:

3/2((290 - 2y) + 2) = y - 18

3/2(292 - 2y) = y - 18

438 - 3y = y - 18

4y = 456

y = $114

Substitute back into the formula to find z:

z = 290 - 2(114)

z = 290 - 228

z = $62

Put all of this back into one of the original formulas to find x:

x + y + z = 272

x + 114 + 62 = 272

x + 176 = 272

x = $96

Total amount = $272

[tex] \tt \nrightarrow \: x + 18 + x + 2 - \frac{2}{3} x = 272[/tex]

[tex] \tt \nrightarrow \: 2x + 20- \frac{2}{3} x = 272[/tex]

[tex] \tt \nrightarrow \: 6x + 60 - 2x = 816[/tex]

[tex] \tt \nrightarrow \: 4x + 60 = 816[/tex]

[tex] \tt \nrightarrow \: 4x = 816 - 60[/tex]

[tex] \tt \nrightarrow \: 4x = 756[/tex]

[tex] \tt \nrightarrow \: x = 189[/tex]

➪ Thus, Michael has $189...~

Answer:

4 units

Step-by-step explanation:

according to question:

perimeter of square = 16 units

4a = 16

where a is the side length

a = 16/4

= 4 units

Step-by-step explanation:

that r = P/(2π) so A = π(P/(2π))2 = P2/(4π). Any positive area less than this is also possible. So in this problem the largest area possible is (16 in.)2/(4π) = 64/π sq.

Step-by-step explanation:

such a rectangular prism is in that sense like a cube (or die) : it has 6 sides or surface areas. top, down, front, back, left, right.

to get the total surface area we need to calculate each individual side area and sum all 6 of them up.

since it is a rectangular shape, there are 3 pairs of equal side areas, so, we really need to calculate only 3 different ones :

front and back : each is

10×9 = 90 in², both together are 180 in²

left and right : each is

8×9 = 72 in², both together are 144 in²

top and bottom : each is

10×8 = 80 in², both together are 160 in²

the total surface area of the prism is

180 + 144 + 160 = 484 in²

Answer:

each game cost 1.28

Step-by-step explanation:

4.35- 0.50

3.85

3.85/3 = 1.283 rounded to 1.28

Answer:

c ,two solutions

Step-by-step explanation:

I think I might be right

There no solution to this nonlinear system.

The correct option is B.

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

We know that the solution of the graph can be seen by x axis touching.

The number of points the curve touches the x axis, there are that number of solution for the curve.

Here the curve touches the x axis only at 0 point.

Thus, the solution of the Equation is No solution.

Learn more about Equation here:

https://brainly.com/question/29639126

#SPJ5

Answer:

Step-by-step explanation:

The lengths of the sides of a triangle are 3t, 5t - 12, and t + 20 . a. Find the value(s) of that t make the triangle isosceles. b. Does any value of make the triangle equilateral?

As you can see, I have my subsidies trying out and, like, a lot of time president focused on assessing. Okay, so we need to figure out what seat for the size that we're giving you could put them in any order you want. So we're gonna try this order for us, and then we're gonna try. So we're gonna do you know that the inside of the a softly triangle in this out of this triangle are equal to each other. And when you add them together, there has to be greeted with this out of this. Had a trying. So we're first gonna do three t is equal to five t oneness. Well, arguments of drugs five from both sides fascinate this negative to t is equal to negative. After this, we could divide negative to on both sides to find out what see is to get T bites so tracked, divided by negative tune. And then we're gonna do t is equal to negative 12 of our negative to 6 36 So we're going to check our solution by plugging in six. So when we plug six into this equation, we're gonna gate 18 3 times six is 18. And when we plug six into this equation, we're gonna get five times six, which is dirty five times six is 30 and you're going to subtract. Told him 30 that gave to. And then we're gonna put 6 40 and we're gonna add it to Tony, which is 26. And then after this, we're gonna add these two 18 18 to figure it out if it's hired into 6 18 plus 18 is 36. So it's harder 26 c is equal to is equal to six. Like I said before, this is not the only order because switch up the sides with them in different places. So I'm gonna take away this side. I took a week this, and I'm gonna put I want to take with this ad too, and I'm in. I'm gonna put t this 20 this side and five C minus. Whoa, This Okay, so we're gonna do the same thing we did over here. We're gonna do three t is equal to C plus 25 because these two sides great. See? Do you see before? See e waas 20 first. We're going to subtract C from both sides we're gonna get to t is equal to finding. And then we're gonna divide to from both sides to get by itself. And, uh, an anti is equal to 10 because 20 the bottom right to it. So we also know that he gave me 10. So we're gonna plug 10 in today, San plus 10 times their times three is equal to this is dirty. And we also know we're gonna put 10 for this side. A tent was 20 is dirty also, it's an end times what? It's 50 When you subtract well, you get 36. No, you get 30 feet, you get 38 when you add 30 plus dirty is 60. So this works. So t is also equal to 10 and we're gonna switch up the order again. This sound this one, I believe this one. And also as you know, we're switching at the side, trying all the possible leads with right. Let's go drop this trying. So this side now will be treaty. And this I will be five c minus slow. We're gonna go. We're gonna do five minutes. 12 is equal to 10 is equal city plus 20 because we know these two sides has equal five feet on its 12. I just love equal See loose. Okay, As you can see, we're going to subtract, see from both sides. And I was going to or C and I'm going to do two steps at a time for gonna actual on this side to everything this tool to get rice on one side of the equation. So I'm gonna add so so both side, and it's gonna before C is equal to dirty, too. We're gonna divide both sides by four to get see bites. So four divided by 36 is line for teeth equal to nine. We're gonna plug that incident equation tee. Times five is nine times five is 45. We're gonna subject for from him that is equal to 32. 33 and then we're gonna do nine waas 20. So amid a misty 2012 is actually 32. So these so t is actually equal to eight because three times 32 divided by four is eight. And we're gonna redo this one because so eight times five is 40 eight times five is sporting. And when we take away Whoa. 40 minus 12 is 28 is doing a So we're gonna do and we're gonna put in April. See here too. This is gonna be a plus 20 which is 28. We're gonna plug in eight for decide eight times three is 24 24. And as you see, this is obviously lower. It's gonna be lowered, indecent. Act together. So, you know, seek and also equal to eight. So for the sausages triangle there. Three possible answers for teeth, depending on how you put the sides which side before, which in just it depend on how you put your sides for the collateral. We know that all of the size has to equal to one thing. And from this, the signs don't equal the same thing One of them is You could get two of them to equal to each other so you can get rid of the size to be able to the same thing. So for the equilateral triangle, it's not possible. So not

Answer:

-40

Explanation:

Hope it helps

Answer:

76.8% or 77%

Step-by-step explanation:

first you would want to multiply 48*160=7680 then you would want to divide by 100 to get it down to a reasonable number, or another way to do it would be to divide 48first by 10 to get it to a decimal and out of the precents, then multiply that by 160 which would give the same answer.

Answer:

−4x^2 + 10x+ 4

Step-by-step explanation:

that is the simplifyed version of the expression

Answer: The answer is −4x−9.8

Step-by-step explanation:

−7x−9−−4.2+3x−5

The opposite of −4.2 is 4.2.

−7x−9+4.2+3x−5

Add −9 and 4.2 to get −4.8.

−7x−4.8+3x−5

Combine −7x and 3x to get −4x.

−4x−4.8−5

Subtract 5 from −4.8 to get −9.8.

−4x−9.8

Ps: I hope this is correct, hope it helps also have a great day.

Answer:

4x^3-26x^2+15x-3

Step-by-step explanation:

STEP 1:

Simplify   3/1

The equation at the end of step 1:

(4•(x3)-(26•(x2)+15x)-3

STEP 2:

The equation at the end of step 2:

(4 • (x3) -  (2•13x2)+ 15x) -  3

STEP 3:

The equation at the end of step 3:

(22x3 -  (2•13x2)+  15x) -  3

STEP 4:

Checking for a perfect cube

4.1    4x3-26x2+15x-3  is not a perfect cube

Trying to factor by pulling out :

4.2      Factoring:  4x3-26x2+15x-3

Thoughtfully split the expression at hand into groups, each group having two terms :

Group 1:  15x-3

Group 2:  4x3-26x2

Pull out from each group separately :

Group 1:   (5x-1) • (3)

Group 2:   (2x-13) • (2x2)

Bad news !! Factoring by pulling out fails :

The groups have no common factor and can not be added up to form a multiplication.

Polynomial Roots Calculator :

4.3    Find roots (zeroes) of :       F(x) = 4x3-26x2+15x-3

Polynomial Roots Calculator is a set of methods aimed at finding values of  x  for which   F(x)=0  

Rational Roots Test is one of the above-mentioned tools. It would only find Rational Roots that are numbers  x  which can be expressed as the quotient of two integers

The Rational Root Theorem states that if a polynomial zeroes for a rational number  P/Q   then  P  is a factor of the Trailing Constant and  Q  is a factor of the Leading Coefficient

In this case, the Leading Coefficient is  4  and the Trailing Constant is  -3.

The factor(s) are:

of the Leading Coefficient:  1,2,4

of the Trailing Constant:  1,3

Let us test...

  P    Q    P/Q    F(P/Q)     Divisor

     -1       1        -1.00        -48.00    

     -1       2        -0.50        -17.50    

     -1       4        -0.25        -8.44    

     -3       1        -3.00        -390.00    

     -3       2        -1.50        -97.50    

     -3       4        -0.75        -30.56    

     1       1        1.00        -10.00    

     1       2        0.50        -1.50    

     1       4        0.25        -0.81    

     3       1        3.00        -84.00    

     3       2        1.50        -25.50    

     3       4        0.75        -4.69    

Polynomial Roots Calculator found no rational roots

Final result :

4x3 - 26x2 + 15x - 3

Answer: Top right

Step-by-step explanation:

This is substituting into point-slope form.

Answer:

14.006

Step-by-step explanation:

π + 3.14 × π + 3.14 ÷ 3.14

14.00619358

Rounded -

14.006

Let's see

[tex]\\ \rm\rightarrowtail \dfrac{\pi\pi(3.14)(3.14)}{3.14}[/tex]

[tex]\\ \rm\rightarrowtail \pi\pi(3.14)[/tex]

[tex]\\ \rm\rightarrowtail \pi^2(\pi)[/tex]

[tex]\\ \rm\rightarrowtail \pi^3[/tex]

Answer:

-π/12

Step-by-step explanation:

1)  -15 * π/180 =

2)  = -π/12

Answer:

D

explanation:

I took the quiz

Given :

To Find :

Solution :

We know that,

[tex]{ \qquad \: \pmb{ \dfrac{1}{2} \times (sum \: of \: the \: parallel \: sides) \times height} = \pmb{Area_{(trapezium)}}}[/tex]

Now, Substituting the given values in the formula :

[tex]\qquad { \dashrightarrow \: { \sf{ \dfrac{1}{2} \times (16 + x)\: \times 10 \: = {140}}}}[/tex]

[tex]\qquad { \dashrightarrow \: { \sf{ 5 \times (16 + x)\ \: = {140}}}}[/tex]

[tex]\qquad { \dashrightarrow \: { \sf{ 80 + 5x = {140}}}}[/tex]

[tex]\qquad { \dashrightarrow \: { \sf{ 5x = {140 - 80}}}}[/tex]

[tex]\qquad { \dashrightarrow \: { \sf{ 5x = {60}}}}[/tex]

[tex]\qquad { \dashrightarrow \: { \sf{ x = { \dfrac{60}{5} }}}}[/tex]

[tex]\qquad { \dashrightarrow \: { \pmb{ x = { 12 }}}}[/tex]

Therefore,

Answer:

it’s is because it’s linear and going up

Step-by-step explanation:

Answer:

Answer: B. It is the graph of y = x translated 8 units down.

Step-by-step explanation:

:)

Answer:

168 km

Step-by-step explanation:

1 hour = 60 minutes

⇒ 5 hours = 5 × 60 = 300 minutes

We have been told the distance that the car traveled in 25 minutes.

Therefore, divide 300 minutes by 25 minutes:

[tex]\implies \sf \dfrac{300}{25}=12[/tex]

So there are 12 'lots' of 25 minutes in 5 hours.

Therefore, to find out how far the car travels in 5 hours, multiply the distance traveled in 14 km by 12:

⇒ total distance = 12 × 14 = 168 km

25min=25/60=5/12h

Speed:-

Total distance in 5h