I need help.?.?.?.?>

I Need Help.?.?.?.?>

Answers

Answer 1

Answer:

Yes, this sample is valid.

Step-by-step explanation:

This sample is valid  because it surveys a random sample of the 750 students.  

Let me know if this helps!


Related Questions

72 is 25% of students that have a cat, how many total students are there?

Answers

Answer:

288

Step-by-step explanation:

1. Use the formula: P*T=N

P = percent, T = Total, and N is the other number.

2. So, P*T=N, therefore, 25%*T=72

3. Simplify .25*T=72

4. So get the Total (T) by itself, you have to divide both sides by .25

5. T = 72/.25

6. 288

288 students total!!!!

Plz help me because I don’t no it

2345 ➗ 550

Answers

Answer:

4.26363636364 or this fraction 4 and 6590909090/25000000000

Step-by-step explanation:

try using photomath

Re write the statement 19+7 divided by 2-5 by including one pair of brackets to make the total equal to 8

Answers

[19+7]/2-5

19+7=26
26/2=13
13-5=8

PLZ ANSWER QUICK IT WILL HELP A LOT!

Answers

Answer:

B

Step-by-step explanation:

But I don’t really know I struggle with this

Answer:

It's D

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Choose 3 values that would make this inequality true. 12 57 +n

Answers

Answer:

8, 10, 5

Step-by-step explanation:

7+8=15, 7+10=17, 7+5=12. You’re basically substituting the numbers in for n and seeing if its greater than or equal to 12.

Helllllppppp pleaaaassssererreeeeeeeee

Answers

Answer:

The Answer is F

Step-by-step explanation:

first you do the first pair of parenthesis which out give you

24 - (3•2•2) Then you do the second pair of parenthesis, in which would give you 24 - 12 which is equal to 12.

Divide £720 in the ratio 5:1

Answers

Answer

600:120

Step-by-step explanation:

5+1 = 6

720/6 = 120

1 = 120

5 = 120 x 5 = 600

George completed 60% of his homework assignments. What is the portion of his homework that he still needs to complete written as a fraction in simplest form?
A. 3/5
B. 2/5
D. 40/100
E. 60/100

Answers

Answer: 3/5

Step-by-step explanation:

60/100 = 0.60 = 60%

3/5 = 0.60 = 60%

Pls help 25 points asap

Answers

Answer:

A hemisphere (three-dimensional object) is generated by rotating the two-dimensional figure about the line y=2.

Step-by-step explanation:

The graph shows a figure of semicircle. When it is rotated by its top it will produce a hemisphere of diameter 4 units.

I need help again I really don't know this​

Answers

Answer:

13/3 x 31/6 would be your reciprocals I'm pretty sure

Step-by-step explanation:

Questions 5-8 I'm very confused

Answers

Answer:

first one is 8/5

2. -2/4

3.-3/2

4.-5/2

Answer:

5-8=3 by subtractions you have to do is go well for

the polygons in each pair are similar. find the missing side length. ​

Answers

Answer:

C 15

Step-by-step explanation:

20÷4x3=15

Answer:

C. 15

Step-by-step explanation:

If B's side length is 20, that means in the ratio 3:4 the 4 represents B's side length.

Multiply both sides of the ratio by 5:

15: 20

The answer is 15.

A- 105.6 cm2
B- 43.76 cm2
C- 452.16 cm2

Answers

Answer:

C. 452.16 cm2

Step-by-step explanation:

A= π r^2 = π · 12^2 ≈ 452.38934 or 452.38

The closest answer to that listed is C

formula:(A = π r²)

π = 3.14

r(radius)^2= radius to the second power.

2.1b b=5 please help

Answers

Answer: 10.5 :) good luck!

Step-by-step explanation:

Answer:

Step-by-step explanation:

10.5

When solving −2a≥10, you must flip the inequality sign to solve for a.

true or false

Answers

Answer:

it is true because you would divide by a negative

true because it just is my teacher just went over this in class

3x + 2y = -9
X – Y = -13

Answers

Answer:

x =-7. .y=6

Step-by-step explanation:

3x + 2y = -9

(X – Y = -13)×3

3x + 2y = -9

3x – 3y = -39

5y = 30

y=6

3x +2(6)=-9

3x=-21

x=-7

The probability that a baby will be a boy is 1/2. What is the probability that a family with five children has all boys

Answers

Answer:

1/10

Step-by-step explanation:

;)

I need helppppp!!!!!!

Answers

Answer:

=−24y9

Step-by-step explanation:

4y2(−6y7)

=4y2*(−6y7)

=4*y2*(−6)*y7

=(4*(−6))*(y2*y7)

=−24*y9

show work and answer the question!! will mark brainliest

Answers

X=1    Y=0

Y-12X+15+3X^2-16X+13-Y=3X^2

-12X+15-16X+13=0

-28X+28=0

X=1

Y=3-16+13=0

What is the approximate radius of a sphere with a volume of 1436 cm3?

A. 41 cm

B. 14 cm

c. 7 cm

D. 69 cm ​

Answers

Answer:

r≈7cm

Step-by-step explanation:

Using the formula

V=4

--------= πr^3

    3

r=(3V

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

4π)⅓=(3·1436

4·π)⅓≈6.99877cm

the answer is 7cm

Answer:

C. 7 cm

Step-by-step explanation:

Took the quiz. Trust

Josh hit a baseball straight up into the air. The equation below describes the
height of the ball (h), in meters, as a function of time (t) in seconds.
h(t) = -9.8t2 + 30t + 1.5
What is the height of the ball after 3 seconds?

Answers

Answer:

3.3 meters

Step-by-step explanation:

h(3)=-9.8(3)^2+30(3)+1.5

=-88.2+90+1.5

=3.3

i need help on the math question if it's right I'll give brain.​

Answers

Answer:  \frac{2}{5}  ; or, write in decimal form:  0.4 .

Step-by-step explanation:

Rewrite as:

_______________________

    [tex]\frac{4x}{7} = \frac{8}{35}[/tex] ;

________________________

Now, "Cross-factor multiply":

that is:

_____________________

 → Given:   [tex]\frac{a}{b} =\frac{c}{d}[/tex]  ;

    → ad = bc ;  (b≠0 ; d≠0) ;

_____________________

As such:

 4x * 35 = 7 * 8 ;

_______________________

We can divide one side of the equatiuon by "4" ; and one side by "7" :

  [tex]\frac{4x*35}{4*7} = \frac{7*8}{4*7}[/tex] ;

_______________________

We can simplify the "left-hand side":

 "4/4 = 1 " ; and "35/7 = 5 " ; & we are left with "x * 5" ; or "5x " .

________________________

We can simplify the "right-hand side":

 "7/7 = 1 " ; and: "8/4 =2 " ; to get: "2/1" ; which equals "2".

_________________________

So; we have:  " 5x = 2 " ; Solve for "x" ;

__________________________

  Divide each side of the equation by "5" ; to isolate "x" on one ide of the equation; & to solve for: "x" ;

__________________________

  " 5x/5 = 2/5 " ;  We cancel out the "5x/5" to "1x"; which equals "x":

    → x = [tex]\frac{2}{5}[/tex]  ;  or, write in decimal format:  "x = 0.4" ;

___________________________

\frac{2}{5}

____________________________

Hope this is helpful!  Best wishes in your academic pursuits—and within the "Brainly" community!

____________________________

Answer:

[tex]x = 0.4[/tex]

Step-by-step explanation:

[tex]\frac{7}{4} x \frac{4}{7} = \frac{7}{4} x \frac{8}{35}[/tex]

Reduce the number with the greatest common factor 7

[tex]\frac{1}{4} x 4x= \frac{7}{4}x\frac{8}{35}[/tex]

[tex]x=\frac{7}{4}x\frac{8}{35}[/tex]

[tex]x=7x\frac{2}{35}[/tex]

[tex]x=\frac{2}{5}[/tex]

HELPPP ILL MARK YOU BRAINLIST

Answers

Answer:

[tex]\frac{1}{4}[/tex]

Step-by-step explanation:

Just take the larger exponent and subtract the smaller exponent and it becomes --> [tex]\frac{1}{2^{2}}[/tex]

[tex]\frac{1}{2^{2}}[/tex] = [tex]\frac{1}{4}[/tex]

Exact form: 1/4
Decimal form: .25

Plssssssss help meeeeeee plssssssssss I have a important test

Answers

Answer:

B

Step-by-step explanation:

RU intersect the angle

Some friends shared 2 bags of chips. If each person got 2/3 of a bag of chips, how many friends were there?

Answers

Answer:

1 1/3

Step-by-step explanation:

mZ1 = _º
140
160
80


what is M

Answers

Answer:

80

Step-by-step explanation:

3. Order each set of integers from least to greatest
a. 65, 61, 59, 45,2
b. 32, 78, 48, 33, 11
c. 99,86,5,63, 31,9
d. 79, 91, 32, 27, 20​

Answers

A. 2,45,59,61,65
B. 11,32,33,48,78
C. 5,9,31,63,86,99
D. 20,27,32,79,91
Mark as brainliest plz:)
A= 2, 45, 59, 61, 65
B= 11, 32, 33, 48, 78
C= 5, 9, 31, 63, 86, 99
D= 20, 27, 32, 79, 91
Integers is just another name for numbers. :-)

A group of students formed a circle during a game.

The circumference of the circle was about 43.96 ft. ,

and the diameter of the circle was 14 ft.

Which expression best represents the value of π?

Answers

Answer and Step-by-step explanation:

C = circumference = 43.96

d = diameter = 14

C = [tex]\pi d[/tex]

Divide both sides by d.

[tex]\frac{C}{d} = \pi[/tex]

[tex]\frac{43.96}{14}[/tex] = [tex]\pi[/tex]

3.14 [tex]= \pi[/tex]

#teamtrees #WAP (Water And Plant)

Consider the figure below.



What are the values of x and y?

Answers

Answers:

x = 14

y = 14

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

Explanation:

The tickmarks indicate the sides x and y are the same length.

So y = x or x = y

We can use the Pythagorean theorem to say

a^2 + b^2 = c^2

x^2 + y^2 = (14*sqrt(2))^2

x^2 + x^2 = 14^2*(sqrt(2))^2

2x^2 = 196*2

x^2 = 196  ...... divide both sides by 2

x = sqrt(196)

x = 14

This must mean that y = 14 as well.

This triangle is an isosceles right triangle. We also consider it a 45-45-90 triangle because the three angles are 45, 45, and 90 degrees.

For any 45-45-90 triangle, the hypotenuse is always sqrt(2) times the leg length.

hypotenuse = leg*sqrt(2)

Please help me with math!
What is the slope of the line shown on the graph?

Answers

Answer:

b- 4/3

Step-by-step explanation:

remember that slope is rise over run

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The Poolas family likes to hike along the Purple Mountain Trail. They hiked the same distance each day for 6 days, traveling a total of 25 miles. How many miles did they hike each day ? 4 2/31 1/5 ....... A sample of oxygen gas has a volume of 150 mL when its pressure is 0.587 atm at 155 K. If the pressure and temperature are increased to STP, what will the new gas volume be? 233 + 628 I want this answer pleaseTHX Harry rolls 2 fair dice. What is the probability of both dice showing a factor of 12? In the movie The Hunger Games, the Capitol (a term used to refer to what we would call the government) produced genetically enhanced birds called jabber jays to spy on rebels. Unexpectedly, these birds bred with mockingbirds, creating a new hybrid bird called the mocking jay. The Capitol did not intend for this to happen, and the bird became a symbol of rebellion. What lessons can we draw about genetic engineering from these examples? Could a scenario like this, where a genetically engineered organism hybridizes with a wild animal or plant, happen in the real world? Why or why not? A cell phone company offers two plans to its subscribers. At the time new subscribers sign up, they are asked to provide some demographic information. The mean yearly income for a sample of 39 subscribers to Plan A is $55,575 with a standard deviation of $8,970. For a sample of 29 subscribers to Plan B, the mean income is $59,475 with a standard deviation of $6,942.At the .025 significance level, is it reasonable to conclude the mean income of those selecting Plan B is larger? Hint: For the calculations, assume the Plan A as the first sample.The test statistic is ______. (Negative amount should be indicated by a minus sign. Round your answer to 2 decimal places.)The decision is _______the null hypothesis that the mean of Plan B is larger.The p-value is ______(Round your answer to 2 decimal places.) Solve 8 = 2^x+ 4Help meeee Use Of Feathers, Fat, and Freezing to answer questions 1-4.What is the authors primary purpose in writing the selection? -6 + (-8)= Whats the answer I need help I will give brainliest to who ever helps me!!. Answering the following questions will help you to focus on the outcomes of these experiments:How does the length to height ratio (the IMA) of trial 1 compare to trial 2?Why is the actual mechanical advantage less than the ideal mechanical advantage in each of the trials?If a machine was 100% efficient, how would the AMA compare to the IMA?Write a summary paragraph discussing this experiment and the results. Use the following questions and topics to help guide the content of your paragraph.According to your data, was your hypothesis correct? (Be sure to refer to your data when answering this question.)Summarize the conclusions that you can draw from this experiment. Use the questions above to guide your ideas.Summarize any difficulties or problems you had in performing the experiment that might have affected the results. Describe how you might change the procedure to avoid these problems.Give at least three examples from everyday life where an inclined plane is used to reduce the effort force needed to accomplish a task. can u help plsssssssssssssssssssssssss Which expression represents the phrase?"20 decreased by the sum of 6 and b." Which option is the basic unit of water, a compound?A. A water atomB. A hydrogen atomC. A hydrogen moleculeD. A water molecule Find the rule and the graph of the function whose graph can be obtained by performing the translation 4 units right and 3units down on the parent function f(x) = xl. change 12 out of 40 to a percentage mention many ways to change how we use water, Which way do you think is the best and explain why. What is an intended audience? Why is it important to make sure the articles you choose are meant for your intended audience? Staley Co. manufactures computer monitors. The following is a summary of its basic cost and revenue data: Per Unit Percent Sales price $480 100 Variable costs 312 65 Unit contribution margin $168 35 Assume that Staley Co. is currently selling 600 computer monitors per month and monthly fixed costs are $80,000. Staley Co.'s margin of safety ratio (MOS%) if 600 units are sold would be (round intermediate calculation up to nearest whole number of units): 79.5%. 19.5%. 33.4%. 17.7%. 20.5%. Cities in the Midwest became important centers for which of the following?