are they congruent? 50 points please help ​

Answer:

2 students

Step-by-step explanation:

.............

Using the weighed mean, it is found that the mean number of sentences per paragraph in the textbook is given by:

B. 5

The weighed mean is given by the sum of all elements in a data-set multiplied by it's weight, divided by the sum of the weights.

In this problem:

Considering that there are 150 books, we have the mean is:

M = 750/150 = 5.

Hence option B is correct.

More can be learned about the weighed mean at https://brainly.com/question/24398353

Answer:

The number is -7

Step-by-step explanation:

x + 15 = 8

Answer:

the number is -7

Step-by-step explanation:

do the opposite( sum-number added)

8-15=-7

Answer: A

Step-by-step explanation:

Answer:

The sequence is not geometric or arithmetic because there is no common difference or common ratio between each term.

bvcdrtStep-by-step explanation:

Answer:

288

Step-by-step explanation:

If you didnt know a triangle has the area of a square/2

so basically what im saying is the area of that square/2 equals the area of the triangle

to find the area of the square you take 24 and square it

24^2=576

finally we divide that by 2

576/2=288

so the area of the triangle is 288

have a great day :D

Answer:

240.52 m square is your answer

Answer:

B

Step-by-step explanation:

area of square=20×21=420 m²

diagonal=√(20²+21²)=√(400+441)=√841=29

radius=29/2

area of circle=π×(29/2)²=841/4  π≈660.52 m²

area of shaded region=660.52-420=240.52 m²

Answer:

option 1 is correct

Step-by-step explanation:

Can I plz have brainliest. thx :-)

Have a nice day!

Answer: Quadrilateral parallelogram, trapezoid; trapezoid

Step-by-step explanation:

A trapezoid has four sides so that makes it a quadrilateral, a parallelogram has at least two parallel sides (top and bottom), a lastly a it's a trapezoid and trapezoid has only one pair of parallel sides.

Answer:

168

Step-by-step explanation:

34 + 58 + 100 = 192

360 - 192 = 168

Answer:

x=−8

y=6=

Step-by-step explanation:

3x+4y=0

5x−3y=−58

In order to solve by elimination, coefficients of one of the variables must be the same in both equations so that the variable will cancel out when one equation is subtracted from the other.

3x+4y=0,5x−3y=−58

To make 3x and 5x equal, multiply all terms on each side of the first equation by 5 and all terms on each side of the second by 3.

5×3x+5×4y=0,3×5x+3(−3)y=3(−58)

Simplify.

15x+20y=0,15x−9y=−174

Subtract 15x−9y=−174 from 15x+20y=0 by subtracting like terms on each side of the equal sign.

15x−15x+20y+9y=174

Add 15x to −15x. Terms 15x and −15x cancel out, leaving an equation with only one variable that can be solved.

20y+9y=174

Add 20y to 9y.

29y=174

Divide both sides by 29.

y=6

Substitute 6 for y in 5x−3y=−58. Because the resulting equation contains only one variable, you can solve for x directly.

5x−3×6=−58

Multiply −3 times 6.

5x−18=−58

Add 18 to both sides of the equation.

5x=−40

Divide both sides by 5.

x=−8

The system is now solved.

x=−8,y=6

Coordinates are: (-8,6)

Graph:

Answer:

sorry i don't knowe this, i realy want to help you

Answer:

m+n=2n+8

m=n+8

n=m-8

2k=m+n

Step-by-step explanation:

Answer:

.88, 88/100, 88%

Step-by-step explanation:

If you take 12% out of 100% you get 88%, 88/100, or .88. This is the amount he has not spent. You could write the fraction as 44/50.

Answer:

12 days

Step-by-step explanation:

Trust me I did the work.

Answer:

159.68

Step-by-step explanation:

68% of 499 is 339.32

499 -339.32=159.68

hope this helps

Answer:

It is 5.61

Step-by-step explanation:

22×3=66

1.87×3=5.61

9514 1404 393

Answer:

  3

Step-by-step explanation:

For f(x) = x^3 -2x^2 -7x +5 and x=1/(2-√3), we have ...

  f(x) = ((x -2)x -7)x +5

and ...

  x = 1/(2-√3) = (2+√3)/(2^2 -3) = 2+√3

Then ...

  f(2+√3) = ((2 +√3 -2)(2 +√3) -7)(2 +√3) +5

  = (3+2√3 -7)(2+√3) +5

  = 2(√3 -2)(√3 +2) +5 = 2(3 -4) +5 = -2 +5

  f(1/(2 -√3)) = 3

_____

If you really mean x = (1/2) -√3, then f(x) = (42√3 -3)/8.

Answer:

4

Step-by-step explanation:

because the variable is h and the constant is 3

Answer:

0.25

Step-by-step explanation:

You have 4 options:

1/4: red

1/4: blue

1/4: green

1/4: yellow

Combined equals a whole, so each one of them equals 0.25

Answer: At the beginning of the quotes. I hope this helps!

Answer:  beginning

Step-by-step explanation:

Answer:

rotation ,then reflection

Answer:

9 and 3

Step-by-step explanation:

if we multiply 9 and 3 we get 27

also when we add 9+3= 12

Answer:

The current or I = 12.

Step-by-step explanation:

Ohm's law requires you to divide 60 volts by 5 ohms, hence giving you 12.

Answer:

pythagorean theorem!

Step-by-step explanation:

a²+b²=c² (normal)

a²=c²-b² (to find a)

[tex]a { = \sqrt{c {}^{2} } } - b ^{2} [/tex]

[tex]a = 38 ^{2} - 27 ^{2} [/tex]

[tex]a = \sqrt{1444 - 729} [/tex]

[tex]a = \sqrt{715} [/tex]

[tex]a = 26.7394839142[/tex]

Answer:

Step-by-step explanation:

Two figures are said to be similar if they are the same shape. In more mathematical language, two figures are similar if their corresponding angles are congruent , and the ratios of the lengths of their corresponding sides are equal.