PLEASE HELPS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer:

E) An observational study using a stratified sample.

Step-by-step explanation:

This study is not an experiment because the customers were not subjected to any treatment but just observation from those selected. Also, the sampling method used was stratified sampling because we see that random samples were selected independently from two unique populations which are population of those that purchased computers and those that offer tech support.

Therefore the correct option is E.

Answer:

A

Step-by-step explanation:

because you dont have a chance

Answer:

x≥-6

Step-by-step explanation:

Answer:

57.5

Step-by-step explanation:

if you break it down into smaller shapes, there's a semicircle, three triangles and a rectangle.

circle πr² = π 2² = 4π² = 39.5

triangle 1 bh = (3)(2) = 6

triangle 2 bh = (4)(1) = 4

triangle 3 bh = (2)(4) = 8

Add them all up to get total area

6 + 4 + 8 + 39.5 = 57.5

Answer:

3/4

Step-by-step explanation:

We have two fractions, 1/4 and 3/4. Lucky they have the same denominator :

Which is the number under the line, which means their capacity is the same amount. Now we just have to see the greater numerator (the number above the line).

So since 3 is greater than 1

Therefore 3/4 is the answer

Answer:

You answer would be 3/4

Step-by-step explanation:

3/4 is larger than 1/4.

IT SHOULD BE 24 IF NOT IM SRRY

Answer:

5.3−6.3+52

=−1+52

=−1+25

=24

Answer:

1305 female students

Step-by-step explanation:

Total no. of students = 2900

Percentage of students male = 55%

No. of students male = 55% of 2900

                                 = 55/100*2900

                                 = 1595

No. of female students = 2900 - 1595 = 1305

Answer:

1314

Step-by-step explanation:

First I found the number of male students

[tex]\frac{x}{2920} =\frac{55}{100} \\\\160600=100x\\1606=x[/tex]

Then I subtracted the number of male students from the number of total students

[tex]2920-1606=1314[/tex]

the answer to your question might be (B).

Doy 10 puntos al que me responda esto:

2 fracciones equivalentes a:

Responda:

7/6

5/4

Answer:

7/6

5/4

Step-by-step explanation:

Answer:

y=2x-10

Step-by-step explanation:

First change to equation into slope intercept form

2y=-x+6

y=-1/2x+3

slope=2 (beacause it is perpendicular)

y--4=2(x-3)

y+4=2x-6

y=2x-10

Answer:

1.5 miles

Step-by-step explanation:

1.5 miles

Since there are 60 minutes in an hour, the person will walk 60/10 = 6 times as much in 1 hour. If that person can walk 1/4 mile in 10 minutes, she will walk (1/4)*6 = 1.5 miles in 1 hour.

Answer:

1 and 1/2 mile

Step-by-step explanation:

The equation would be 1/4 times 6/1 because 60 divided by 10 is 6

1/4 times 6/1 is 6/4

simplified the answer is 1 and 1/2

Answer:

A

Step-by-step explanation:

If you have no money in the bank the debit card won't work

Answer:

its C

Step-by-step explanation:

Answer:

0.8235 is a decimal and 82.35/100 or 82.35% is the percentage for 14/17.

Step-by-step explanation:

hope it helps

The decimal rounded to the nearest tenth is,  8.235×10⁻¹

Simplification in mathematical terms is a process to convert a long mathematical expression in simple and easy form.

The given term is 14/17,

Simplify this term, by dividing,

14/17 = 0.823529411

The decimal rounded to the nearest tenth is,  8.235×10⁻¹.

To know more about Simplification on :

https://brainly.com/question/2804192

#SPJ2

Answer:

Abstract

We give a recursion formula to generate all the equivalence classes of connected graphs with coefficients given by the inverses of the orders of their groups of automorphisms. We use an algebraic graph representation to apply the result to the enumeration of connected graphs, all of whose biconnected components have the same number of vertices and edges. The proof uses Abel’s binomial theorem and generalizes Dziobek’s induction proof of Cayley’s formula.

Answer:

Step-by-step explanation:

As per diagram, the coordinates of the points changed:

This rule is 180° rotation about the origin

Answer: Say what is this

Answer:

this is possibly real so good luck

Step-by-step explanation:

========================================================

Explanation:

Refer to the diagram below. I'm using the points A,B,C,D,E to help label the triangles, and to label the angles as well.

For now, let's focus on triangle DEC.

The top most angle is given as D = 65. Note how the angles D and E are opposite the congruent lines (marked with the red single tickmarks). This means that angles D and E are congruent to one another. So E = 65 as well. This is shown in the diagram below.

For now we don't know what angle C is, so we'll call it y. More specifically, we'll make y the measure of angle DCE.

For any triangle, the three angles always add to 180

y+65+65 = 180

y+130 = 180

y = 180-130

y = 50

So angle DCE is 50 degrees.

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

Now we move onto triangle ABC.

Because angles DCE and ACB are vertical angles, this makes angle ACB 50 degrees also. Effectively, anywhere you see a 'y' in the diagram below, replace it with 50.

So triangle ABC has the three angles y = 50, y = 50 and 7x-4

We can solve for x like so

y+y+(7x-4) = 180

50+50+(7x-4) = 180

7x+96 = 180

7x = 180-96

7x = 84

x = 84/7

x = 12

This points to choice C as the final answer.

Answer:

x = 8, so 6x = 48 and 4x + 10 = 42

Step-by-step explanation:

This is a right angle, so we can say that 6x + 4x + 10 = 90 = 10x + 10 = 90 = 10x = 80 = x = 8.

Answer:

66

Step-by-step explanation:

Since the triangels are similar, 3x+18=4x+2.

Let's solve that.

3x+18=4x+2

16=x

THIS IS NOT THE VALUE OF THE ANGLE! We have to plug x into one of the equations to find the answer.

3(16)+18=66

Answer:

Novels: 24% Comics: 76%

Step-by-step explanation:

Divide 18/75= 0.24= 24% to find percent of novels

Subtract 100-24= 76 to get the remaining percent

Or

Subtract 75-18= 57 (to get the number of comics she has)

Divide 57/75= 0.76= 76% to find percent of comics

Answer:

b) 2 20/100

Step-by-step explanation:

2.20 = 2 2/10

so, if that fraction is multiplied by 10/10 then it's still the same.

Answer: Not here is the answer

Step-by-step explanation:

To write 2.20 as a fraction you have to write 2.20 as numerator and put 1 as the denominator. Now you multiply numerator and denominator by 10 as long as you get in numerator the whole number.

2.20 = 2.20/1 = 22/10

And finally we have:

2.20 as a fraction equals 22/10

Answer:

depends how much the pizza is

Answer:

false

Step-by-step explanation:

Answer:

Step-by-step explanation:

The null and the alternative can be computed as:

[tex]H_o : \mu = 7.62[/tex]

[tex]H_1 : \mu < 7.62[/tex]

[tex]Claim: \mu < 7.62[/tex]

[tex]\alpha= 0.05[/tex]

The critical value for a left-tailed test at [tex]\alpha= 0.05[/tex] = -1.645

The test statistics can be computed as:

[tex]Z = \dfrac{\overline x - \mu}{\dfrac{\sigma}{\sqrt{n}} }[/tex]

[tex]Z = \dfrac{6.78 - 7.62}{\dfrac{1.77}{\sqrt{54}} }[/tex]

[tex]Z = -3.487[/tex]

The P-value = (Z< -3.487)

The P-value = 0.00024

Decision Rule: TO reject [tex]\mathbf{H_o}[/tex] at [tex]\alpha= 0.05[/tex], if test statistics is less than the critical value (left tailed)

Conclusion: We reject  [tex]\mathbf{H_o}[/tex] at ∝ = 5%, thus there is enough evidence to support the claim that the college students average daily ownership expenses are less than the national average.

Answer:

The change to the face 3 affects the value of P(Odd Number)

Step-by-step explanation:

Analysing the question one statement at a time.

Before the face with 3 is loaded to be twice likely to come up.

The sample space is:

[tex]S = \{1,1,2,2,2,3\}[/tex]

And the probability of each is:

[tex]P(1) = \frac{n(1)}{n(s)}[/tex]

[tex]P(1) = \frac{2}{6}[/tex]

[tex]P(1) = \frac{1}{3}[/tex]

[tex]P(2) = \frac{n(2)}{n(s)}[/tex]

[tex]P(2) = \frac{3}{6}[/tex]

[tex]P(2) = \frac{1}{2}[/tex]

[tex]P(3) = \frac{n(3)}{n(s)}[/tex]

[tex]P(3) = \frac{1}{6}[/tex]

P(Odd Number) is then calculated as:

[tex]P(Odd\ Number) = P(1) + P(3)[/tex]

[tex]P(Odd\ Number) = \frac{1}{3} + \frac{1}{6}[/tex]

Take LCM

[tex]P(Odd\ Number) = \frac{2+1}{6}[/tex]

[tex]P(Odd\ Number) = \frac{3}{6}[/tex]

[tex]P(Odd\ Number) = \frac{1}{2}[/tex]

After the face with 3 is loaded to be twice likely to come up.

The sample space becomes:

[tex]S = \{1,1,2,2,2,3,3\}[/tex]

The probability of each is:

[tex]P(1) = \frac{n(1)}{n(s)}[/tex]

[tex]P(1) = \frac{2}{7}[/tex]

[tex]P(2) = \frac{n(2)}{n(s)}[/tex]

[tex]P(2) = \frac{3}{7}[/tex]

[tex]P(3) = \frac{n(3)}{n(s)}[/tex]

[tex]P(3) = \frac{1}{7}[/tex]

[tex]P(Odd\ Number) = P(1) + P(3)[/tex]

[tex]P(Odd\ Number) = \frac{2}{7} + \frac{1}{7}[/tex]

Take LCM

[tex]P(Odd\ Number) = \frac{2+1}{7}[/tex]

[tex]P(Odd\ Number) = \frac{3}{7}[/tex]

Comparing P(Odd Number) before and after

[tex]P(Odd\ Number) = \frac{1}{2}[/tex] --- Before

[tex]P(Odd\ Number) = \frac{3}{7}[/tex] --- After

We can conclude that the change to the face 3 affects the value of P(Odd Number)

Answer:

The answer is 7

Step-by-step explanation:

5x7=35

Answer:

7

Step-by-step explanation:

What you would have to do is divide the 5 and 35 to get 7

Answer:

10.67

Step-by-step explanation: