Math equations giving Brainliest

Math Equations Giving Brainliest

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The social studies teacher wants to know whether the students in the entire school prefer a model United Nations activity or a student government activity. The teacher draws a random sample from the following groups: All teachers in the school All boys in each grade All students in each grade All students in the social studies club Which group best represents the population he should take a random sample from to get the best results for his survey?

All teachers in the school
All boys in each grade
All students in each grade
All students in the social studies club

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Answer:all students in the social studies club

Answer:

I dont know the answer to this but I was putting this here to tell you how much of a good person you are.  I was taking the ming china cause and effect chart and I didnt know the answer and your answer on that helped me alot and thank you very much you helped my grade to go from a b to an a thank you you are one of the kindest people I know.  Thank you :)

Step-by-step explanation:

Find the coordinates of E' after a dilation with a
scale factor of 2.

Answers

Answer:

(more information is needed, the origin of the dilation and the coordinates for E)

A. (0,5)
B. (0,2)
C. (-1,3)
D. (-3,-1)

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Answer:

(0,5)

x,y

Step-by-step explanation:

Please help I will give you all the points I have pls pls pls!!

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11x8 = 88
Therefore 88ft^2

Definition of exponential?

Answers

Answer:

(of an increase) becoming more and more rapid.

"the social security budget was rising at an exponential rate"

Step-by-step explanation:

✨research ✨

Answer:

(of an increase) becoming more and more rapid.

(Mathematics)

of or expressed by a mathematical exponent.

Step-by-step explanation:

−k+2(−2k−5) simplified

Answers

Step-by-step explanation:

Square Mc hammered Square Puff

Answer:

-5(k + 2)

Step-by-step explanation:

What is the angle measurement of angle LON?

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i’m pretty sure the answer is 120

Will mark brainliest please help

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Answer:

4) x - intercept: (-7,0)

y-intercept: (0,7)

5) x- intercept: ( 9/8, 0)

y- intercept: ( 0, -9)  

Step-by-step explanation:

PLZ HELP NEED BY TODAY!!

Answers

Answer:

x=20 degrees.

Step-by-step explanation:

Which is equal to sin 30°?
A. cos 30°
B. cos 60°
C. sin 60°
D. sin 70

Answers

sin 30° equals to cos 60°! (B)
Because they both equals to 1/2
I hope this helped!

Kelby has several pets. She has B birds, C cats, and F frogs.
The expression B + (C+F) represents the total number of pets Kelby has.
What does C + F represent in this context?
Choose 1 answer:
The total number of cold blooded pets
B
The total number of warm-blooded pets
The total number of pets with 2 legs
D
The total number of pets with 4 legs

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the total number of cold blooded pets and C+F is cat and frog

Yes or no? Plzzz explain why

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Answer: no

Step-by-step explanation:

Steven must have gotten this answer from 11 x 11, which is wrong. The reason is because of the square root.

[tex]\sqrt{11} = 3.3166247903554[/tex]

(roughly 3.32)

So using the formula for a square l x w, the square's area is 11.0224 or 11.02

A right triangle has one angle that measures 25º. What is the measure of the other acute
angle?

Answers

Answer:

65

Step-by-step explanation:

All the angles in a right triangle add up to 180

plug in what we know and we get

90+25+x=180

115+x=180

x=65

There are eight boys and six girls who are members of the trumpet section in the band. From the members of the trumpet section, a quintet is being formed. If the quintet must consist of three boys and two girls, how many quintets are possible?

Answers

Answer:

8 c  3     *   6 c 2 =   56 * 15  =   840 ways

Step-by-step explanation:

First, we consider how many ways there are to choose three boys from eight. There are 8 choices for the first boy, 7 for the second, and 6 for the third. However, because the boys are indistinct from one another, we have overcounted, and must divide by 3*2. Similarly, there are 6*5 ways to choose the two girls, divided by 2 for overcounting. Thus, there are (8*7*6*6*5)/(3*2*2)=840 possible quintets.

A person places $1380 in an investment account earning an annual rate of 8.6%, compounded continuously. Using the formula V = Pe^{rt}V=Pe rt , where V is the value of the account in t years, P is the principal initially invested, e is the base of a natural logarithm, and r is the rate of interest, determine the amount of money, to the nearest cent, in the account after 10 years.

Answers

Answer:

V = 3261.16

Step-by-step explanation:

Given:

P = 1380

r = 8.6% or 0.086

t = 10

Work:

[tex]V=Pe^{rt}\\\\V=1380e^{0.086*10}\\\\V=1380e^{0.86}\\\\V=3261.16[/tex]

85 is 68% of what number

Answers

Answer:

Goo gle Says its 80

Step-by-step explanation:

Looking up, Josh sees two hot air balloons in the sky as shown. He determines that the lower hot air balloon is 700 meters away, at an angle of 38 from the vertical. The higher hot air balloon is 1050 meters away, at an angle of 26 from the vertical. How much higher is the balloon on the right than the balloon on the left? Do not round any intermediate computations. Round your answer to the nearest tenth.

Answers

Answer:

In right angled triangle ABC

tan 26=perpendicular/base

tan26 =BC/1050

BC=1050×tan26=512.12m

again

In right angled triangle ADE

tan 38=perpendicular/base

tan38×700=DE

DE=546.9=547m

now

difference in height =547-512.12m=34.8m=35m

35 m is your answer

Josh sees two hot air balloons in the sky as shown. 35m higher is the balloon on the right than the balloon on the left.

What are the trigonometric ratios?

Trigonometric ratios for a right-angled triangle are from the perspective of a particular non-right angle.

In a right-angled triangle, two such angles are there which are not right angled(not of 90 degrees).

The slanted side is called the hypotenuse.

From the considered angle, the side opposite to it is called perpendicular, and the remaining side will be called the base.

Josh sees two hot air balloons in the sky as shown.

He determines that the lower hot air balloon is 700 meters away, at an angle of 38 from the vertical.

The higher hot air balloon is 1050 meters away, at an angle of 26 from the vertical.

In right-angled triangle ABC

tan Ф = perpendicular/base

tan26 = BC/1050

BC = 1050 × tan26

BC = 512.12m

In right-angled triangle ADE

tan Ф = perpendicular/base

tan 38 = perpendicular/base

tan38 × 700 = DE

DE = 546.9

DE = 547m

The difference in height = 547 - 512.12m

                                        =34.8m

                                       = 35m

Therefore, 35m higher is the balloon on the right than the balloon on the left.

Learn more about trigonometric ratios here:

brainly.com/question/22599614

#SPJ2

WILL GIVE BRAINLIEST!! Priscilla received 240 votes in the election for student council president. That was 60% of the students who voted in the election. How many students voted in the election? A) 400 students B) 300 students C) 185 students D) 455 students

Answers

The answer is A (400 students)

Answer:

A)400 students

Step-by-step explanation:

CHOOSING BRAINLIEST ( INCLUDES SCREENSHOT )
This table shows a directly proportional relationship between the distance Craig runs and the number of track practices he attends.
x | y
4 | 12
5 | 15
6 | 18

What is the distance Craig runs if he attends 9 track meets ?

Answers

Answer:

27 miles

Step-by-step explanation:

Find the linear equation which is y = 3x

y = 3(9)

y = 27

Answer:

27 miles is the answer

Step-by-step explanation:

x | y

4 |12

5 | 15

6 |18

7 |21

8 | 24

9 |27

 x is increasing by 1 and y by 3 so  by this way 27 is the answer

It cost $5 to send 6 packages through a certain shipping company. Consider the number of packages per dollar. Find the constant of proportionality for this situation. ENTER ONLY A NUMERICAL ANSWER. NO WORDS, SYMBOLS, OR ADDITIONAL SPACES

Answers

Answer:

1.2 packages per dollar

Step-by-step explanation:

Number of packages = 6

Total cost in dollars = $5

Number of packages per dollars = Number of packages / Total cost in dollars

= 1.2 packages per dollar

Let

P = number of packages

d = cost in dollars

k = constant of proportionality

P = k * d

6 = k * 5

k = 6/5

k = 1.2

Constant of proportionality = 1.2

Can I get help for this?



18. When you graph an inequality, you used a closed dot when
you use which symbols?
a) 5,2
I b) >
c),
u d) >
+
19. When graphing an inequality, you use an open dot when
you use which symbol?
a) < >
b) 3,2
O c s,&
d) 2, >
20.
What inequality does the number line graph represent?
55132101 2 3 4 5 6
a) x 54
b) x2-4
d) x <4
DC) x <-4

Answers

Do not por on that file that retake all your information

A sphere and a cone have the same volume. The sphere has a radius x and height y. The cone has a radius of 1/2x. Find the height of the cone in terms of y.

Answers

Answer:

h = 16x

Step-by-step explanation:

The volume of a sphere and a cone is same such that,

[tex]V_s=V_c\\\\\dfrac{4}{3}\pi r^3=\dfrac{1}{3}\pi R^2h[/tex]

We have, r = x, R = (1/2)x, h= ? (height of the cone)

So,

[tex]\dfrac{4}{3}\pi x^3=\dfrac{1}{3}\pi (\dfrac{x}{2})^2h\\\\4x^3=\dfrac{x^2}{4}h\\\\h=\dfrac{16x^3}{x^2}\\\\h=16x[/tex]

So, the height of the cone is equal to 16x.

Situation:
Find the age of the spear head to the nearest
year.
An archaelogist in Turkey discovers a
spear head that contains 32% of its
original amount of C-14.
Enter the correct answer.
DONE
N = Noekt
No - inital amount of C-14 (at time
t = 0)
N = amount of C-14 at time t
k = 0.0001
t = time, in years

Answers

Time in the years I think not I am not for sure good luck :)

Solve for x


eaesfdsdfeasfsef

Answers

77

11 X 7 is 77.

if u get two numbers on a shape you just multiply it

8.5 is the answer for x

What kind of event is this: You draw a marble from a bag, keep it, then draw another

Independent
or
Dependent

Answers

Answer:

I believe independent

Step-by-step explanation:

I’m not quite sure what your asking r u asking like dependent and independent variable?

if I’m correc may I have brainliest plz I need 4 more to rank up thanks!

Independent hope this helps

It takes 76 pounds of seed to completely plant an 11-acre field. How many pounds of seed are needed per acre?​

Answers

Answer:

6 pounds and 9 ounces

or 7 pounds when rounded

a cylinder with a height of 6 km has a volume of 384n km3, what is the radius?

Answers

Answer:

r = 8

Step-by-step explanation:

V = π [tex]r^{2} h[/tex] so 384 = [tex]r^{2} (6)\\[/tex]

384/6 =  [tex]r^{2}\\[/tex] so

64 =  [tex]r^{2}\\[/tex]

8 =  [tex]r\\[/tex]

Slope-intercept equation from graph

Find the equation of the line.

⚠️WILL GIVE BRAINLIEST⚠️

Answers

We know the coordinates of two points on the line—(-2,0) and (0,4)—which we can use to find the slope.

Slope = Δy/Δx = (4-0)/(0-(-2)) = 2.

And as we conveniently just noted, when x = 0, y = 4. So, the slope-intercept form of the equation of this line is y = 2x + 4.

How is the term work different than the term power?​

Answers

Work is defined as the process of energy transferred to an object through force. Whereas power is defined as the amount of energy transferred in unit time.

Which expressions are equivalent to the expression shown below? Select all that apply. 6x + 3y – 2x + 4y – 2y + x + 5x A 10x + 5y B 6x – 2x + x + 5x + 3y + 4y – 2y C 14xy D 22xy E 14x + 9y F x + 2x + 3y + 4y + 5x + 6x

Answers

Answer:

[tex]10x + 5y[/tex], [tex]6x - 2x + x + 5x + 3y + 4y - 2y[/tex]

A and B

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FILL IN THE BLANK. Many e-commerce sites now host areas where users can post ratings, questions, or comments about a product or service. The content that is posted in these areas is referred to as ___ generated content (UGC). All of the following were Roman achievements EXCEPT:A. creating the Olympic GamesB. written lawsC. aqueductsD. republic form of government Can yall help me answer these questions please help PLEASE HELP ASAP 20 POINTS!!review "the deadliest tsunami in history" and "orphans give indian couple will to live" in pathways pages 221 - 229 write an essay in which you analyze the ways these articles attempt to influence the audience's response to the 2004 tsunami in your essay discuss the viewpoints and values presented in each article include your interpretation of the graphics and their purposes conclude with your opinion of the effectiveness of these articles how do you perceive this natural disaster based on the reading? When an object is moving with uniform circular motion, the objects tangential speed? After studying the work of Shonda appreciates the connection between physical movement and employee efficiency Multiple Choice O Spaulding the O GilbrethsO MintzbergO Munsterberg Change in the U.S. healthcare system typically occurs via: a. federal legislation by the dominant political party b. massive changes in funding policy c. special memorandum voted on during scheduled elections d. compromise led by moderates who look for common ground What does positive connotation mean? A loaded truck can accelerate at 4.3m / (s ^ 2) It loses its load so that it is only 0.2 as massive. By what factor must the acceleration change for the same driving force? What common food reacts with pewter and was once thought to be poisonous? What was one of Coach Warlicks last memories of Coach Summitt? Cite specific evidence from the essay in your response. What is the missing term? suppose that two capacitors (cl and c2) are connected in series. choose the expression for the sum of the energies stored in these capacitors. What is the factor of x 2x 5x 6? One reason to hire temporary workers, who are oftentimes employed by an outside staffing agency, is so the organization can respond quickly with changes in the work force to meet decreasing or increasing demand for products or services. What were the aims of nationalism in the 19th century? 7. Which is the following formula solved for a?x = b + vt + 2ata. x b - vt = at2b. a = x b + vt + t-c. a =d. a =2(x-b-vt)2t2b+vt+t1/2Please help meeeee!!!! The graph of two functions is shown. graph of f of x equals x squared and g of x equals 2 times x minus 3 If f(x) = x2 and g(x) = 2x 3, why is f(x) g(x)? a f(x) g(x) because the graphs do not intersect. b f(x) g(x) because the x-intercept of the two graphs is not the same. c f(x) g(x) because the y-intercept of the two graphs is not the same. d f(x) g(x) because f(x) is a curve and g(x) is a straight line. In the Orthogonal Decomposition Theorem, each term in formula (2) for is itself an orthogonal projection of y onto a subspace of W.True/False Sams Soups is open 6 days a week, 76 hours in all. Its hours are the same every day, except on Saturday and Sunday. On those days, it is open 2 hours longer. How long is Sams Soups open on Sunday? Use an equation to solve.