what are the next two numbers in the sequence 21, 18, 13, 6,

Answer:

its (-2,4)

gimme brainliest plz :)

Step-by-step explanation:

Answer:

900pi

Step-by-step explanation:

formula for sphere's surface area :

4πr^2

radius = 15 (30/2)

4*pi*15^2 = 900pi

Answer:

The surface area is 2827.43

Step-by-step explanation:

This is the formula:

A= 4 π r^2= 4· π· 15^2 = 2827.43339

Hope this helps you!

Answer:

Step-by-step explanation:

The fraction 6 3/4 is closer to 7 than it is to 6; the fraction 1 2/3 is closer to 2 than it is to 1. So the best estimation is the first choice, 7 / 2.

Answer:

7 ÷ 2

Step-by-step explanation:

4.05  -3.5  =0.55  

4.05 - 6 =-1.94  

4.05 -2.66   =1.38  

4.05  -1.5 =2.55  

Answer:

(1, 2 )

Step-by-step explanation:

Given the 2 equations

- 2x - y = - 4 → (1)

x + 2y = 5 → (2)

Multiplying (2) by 2 and adding result to (1) will eliminate x- term

2x + 4y = 10 → (3)

Add (1) and (3) term by term to eliminate x

0 + 3y = 6

3y = 6 ( divide both sides by 3 )

y = 2

Substitute y = 2 into either of the 2 equations and solve for x

Substituting into (2)

x + 2(2) = 5

x + 4 = 5 ( subtract 4 from both sides )

x = 1

solution is (1, 2 )

Rewrite 13/5 as 26/10

Add the two pieces together:

26/10 + 33/10 = 59/10

Rewrite 7 meters as 70/10

Subtract the two pieces:

70/10 - 59/10 = 11/10 meter left

Answer:

7675

Step-by-step explanation:

f76r87fgvbhdty

The domain of the function y=2.√(x-6) is all real numbers greater than or equal to 6.

The domain of the function is defined as the set of all the possible values of the function.

The square root function can only take non-negative values, so the expression inside the square root must be greater than or equal to zero:

x - 6 ≥ 0

To calculate the domain of a function, you need to determine the set of all possible input values (also known as the independent variable) that the function can accept and produce a valid output value (also known as the dependent variable). Here are the general steps to find the domain of a function:

Solving for x, we get:

x ≥ 6

Therefore, the domain of the function y=2.√(x-6) is all real numbers greater than or equal to 6. In interval notation, we can write the domain as [6, ∞).

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The mark price of the pen is 120 rs

The first step is to write out the parameters given the question

Discount= 15%

Gain= rs 10

Discount= 15%

loss= rs

When a pen is sold at a discount of 15% there is a gain of rs 10

When the pen is sold at 25% discount there is a loss of rs 2

The mark price of the pen can be calculated as follows

15% = c.p + 10 rs

25 % = c.p - 2 rs

25%-15% = 10 rs +2 rs

10% = 12 rs

10/100 = 12 rs

0.1= 12 rs

12/0.1

= 120 rs

Hence the mark price of the pen is 120 rs

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Mark Price: RS. 120

The Gain Function is the difference between Resulting Price, which is the Mark Price including Discount Rate, and the Reference Price, where positive result represents Net Gain, as negative result represents Net Loss. Gain Function is described below:

[tex]G = \left(1-\frac{r_{D}}{100} \right)\cdot P_{M}-P_{R}[/tex] (1)

Where:

[tex]G[/tex] - Gain function, in monetary units.

[tex]r_{D}[/tex] - Discount rate, in percentage.

[tex]P_{M}[/tex] - Mark price, in monetary units.

[tex]P_{R}[/tex] - Reference price, in monetary units.

The Mark Price of the pen is the price shown on the label of the product, whereas the Reference Price is the purchase cost of the product from provider.

Based on what it is written on statement we have the following system of linear equations:

1) When a pen is sold at a discount of 15 %. There is a gain of RS. 10: ([tex]G = 10[/tex], [tex]r_{D} = 15[/tex])

[tex]\left(1-\frac{15}{100} \right)\cdot P_{M} - P_{R} = 10[/tex] (2)

2) But if it is sold at 25 % discount there is a loss of RS. 2: ([tex]G = -2[/tex], [tex]r_{D} = 25[/tex])

[tex]\left(1-\frac{25}{100} \right)\cdot P_{M} - P_{R} = -2[/tex] (3)

The solution of the resulting system of linear equations is:

[tex]P_{M} = 120[/tex], [tex]P_{R} = 92[/tex]

The mark price of the pen is RP. 120.

Answer:

The solution will go from NO common solutions to infinite solutions between the 2 parallel lines.

Step-by-step explanation:

In the original case all solutions for equation 1 are above line 1 (y >) and all solutions for equation 2 are below line 2 (y <), so there is no overlap and therefore no common solutions. When reversed, all solutions for line 1 are below line 1 and all solutions for line 2 are above line 2. So the overlap is everything between the two lines.

Answer:

The shaded area would reverse on both inequalities.  

The graphs do not overlap until the signs are reversed.  

There are an infinite number of solutions in the system once the signs are reversed.

There are no solutions before they are reversed.

Step-by-step explanation:

edge 2021

Answer:

D

Step-by-step explanation:

because the new number is changing to a new and all old is ready.

Answer:

90 degrees

Step-by-step explanation:

general Pythagoras

c² = a² + b² - 2ab×cos(ABC)

with c being the side opposite of the angle ABC.

c = AC

a = AB

b = BC

(0-15)² + (0-0)² = (0-9.6)² + (0-7.2)² + (9.6-15)² + (7.2-0)² - 2×sqrt((0-9.6)²+(0-7.2)²)×sqrt((9.6-15)²+(7.2-0)²)×cos(ABC)

225 = 92.16 + 51.84 + 29.16 + 51.84 - 2×12×9×cos(ABC)

225 = 144 + 81 - 216×cos(ABC)

225 = 225 - 216×cos(ABC)

0 = cos(ABC)

ABC = 90 degrees

Answer:

x = 46

Step-by-step explanation:

The angles are corresponding angles and corresponding angles are equal.

2x+4 = 4x-88

Subtract 2x from each side

2x+4 -2x= 4x-2x-88

4 = 2x-88

Add 88 to each side

4+88 = 2x

92 = 2x

Divide by 2

92/2 = 2x/2

46=x

[tex]\huge\textsf{Hey there!}[/tex]

[tex]\mathsf{2x + 4 = 4x - 88}[/tex]

[tex]\huge\textsf{SUBTRACT 4x to BOTH SIDES}[/tex]

[tex]\mathsf{2x - 4 - 4x = 4x - 88 - 4x}[/tex]

[tex]\textsf{CANCEL out: 4x - 4x}[/tex]

[tex]\huge\textsf{NEW EQUATION: -2x + 4 = -88}[/tex]

[tex]\huge\textsf{SUBTRACT 4 to BOTH SIDES}[/tex]

[tex]\mathsf{-2x + 4 - 4 = -88 - 4}[/tex]

[tex]\textsf{CANCEL out: 4 - 4}[/tex]

[tex]\textsf{KEEP: -88 - 4 because it gives you the value of -92 (which helps you solve for}\\\textsf{the x-value)}[/tex]

[tex]\mathsf{-2x = -92}[/tex]

[tex]\huge\textsf{DIVIDE -2 to BOTH SIDES}[/tex]

[tex]\mathsf{\dfrac{-2x}{-2}=\dfrac{-92}{-2}}[/tex]

[tex]\textsf{CANCEL out:} \mathsf{\dfrac{ -2}{-2}}[/tex]

[tex]\textsf{KEEP: }\mathsf{\dfrac{-92}{-2}}\textsf{ because it gives you the answer of x }[/tex]

[tex]\mathsf{\bf x = 46}[/tex]

[tex]\boxed{\boxed{\huge\textsf{Answer: x = \bf 46}^\circ}}\huge\checkmark[/tex]

[tex]\large\textsf{Good luck on your assignment and enjoy your day!}[/tex]

~[tex]\frak{Amphitrite1040:)}[/tex]

Answer:

112

Step-by-step explanation:

The volume is given by l*b*h=4*4*7=112

Answer:

-7

Step-by-step explanation: kahn

Answer:

(0,-7)

Step-by-step explanation:

The slope intercept form of a line is

y = mx+b  where m is the slope and b is the y intercept

y = 3x-7

The slope is 3 and the y intercept is -7

(0,-7)

Answer:

18.84

Step-by-step explanation:

Answer:

18.84

Step-by-step explanation:

Answer:

n = 9

Step-by-step explanation:

20.75 = 1.75n + 5

20.75 - 5 = 1.75n

15.75 = 1.75n

-------     -------

1.75       1.75

  9    =     n

Answer:

DECREASE

Step-by-step explanation:

Not sure

But Hope It Help

Answer:

x = 50

Step-by-step explanation:

I guess, this diagram tells us that the lines are parallel.

that means that they cut the third line at the exact same angles.

and that means

3x - 26 = 2x + 24

x - 26 = 24

x = 50

3x-26=2x+24

3x-2x=24+26

x=50

please mark this answer as brainlist

Answer:

170.54m²

Step-by-step explanation:

there are three shapes

triangle: is 1/2*3*5=7.5

square is 6*5=30

circle=3.14*6²=133.04

7.5+30+133.04=170.54

answer is 170.54

Answer:

12

Step-by-step explanation:

Base area = 3×4/2 = 6 ft²

height = 6 ft

volume = 6×6/3 = 12 ft³

Answered by GAUTHMATH

Answer:

x=-2

sorry i messed up coord val :/

Step-by-step explanation:

Answer:

x = -2

Step-by-step explanation:

a parabola  is symmetric (has a mirror image)

a parabola has ONE vertex (a highest or lowest point).

thus a line that goes through the vertex is it's axis of symmetry.

x = 5 , x=99, x=102 are vertical lines that intersect the x axis no matter what the y value is....

your axis of symmetry is a line that looks like  X= SOMETHING

the "something" is the X value of the vertex, which is (-2,3)

this the equation x = -2 is the answer ... see the image

Answer:

3/4 more hours

Step-by-step explanation:

Hours taken to clean bedroom = 5/4

Hours taken to clean den = 1/2

How much more = 5/4 - 1/2

5-2/4 (common denominator)

3/4 more hours (It's a propper fraction, so we can't write it as a mixed number)

Answer from Gauthmath

Answer:

Step-by-step explanation:

I am going to assume that you are doing this on your calculator using the stat button as opposed to having to find it by hand which is so extremely long and drawn out, you'd be dead by the time we found the equation...

The equation of the line of best fit is

y = 1.383x - 1.526

I would explain to you how to do that, but it's a very involved process on your calculator. Find out how to do it and it's the easiest thing in the world!!!

The required equation of the line is y = 0.667x + 2.334

From the table given equation of the line is determined.
x = 4  7  10  12  13
y = 5  7  12  14  18

A line is a curve showing the shortest distance between 2 points.

Standard equation of line, y =mx + c
The slope of equation m = [tex]\frac{y_2-y_1}{x_2-x_1}[/tex] and c is y intercept.
                                m  = 7-5/7-4
                                m = 2/3
Now put m in the standard equation
y = 2x/3 + c  - - - - -(1)
to find the value of c we will put a point  (7, 7) in the equation.

7 = 7*2/3 + c
c = 7 - 14/3
c = (21-14)/3
c = 7/3
Put c in equation 1
y = 2x/3 + 7/3
y = 0.667 x +2.334

Thus, The required equation of the line is y = 0.667 x +2.334

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it's def c because that's where the intersection is, which is the solution (there is only one solution)

Answer:

x = 16.5

Step-by-step explanation:

im assuming you meant 73 degrees instead of 730.

56+73 = 129

2x+3x+4x+5x = 14x

360-129 = 231

231 = 14x

231/14 = 16.5

x = 16.5

9514 1404 393

Answer:

  20 square units

Step-by-step explanation:

The area is given by the formula ...

  A = bh

where b is the base of the parallelogram, and h is the perpendicular distance between the parallel bases. Using the numbers from the figure, we have ...

  A = 5·4 = 20 . . . . square units

_____

Additional comment

You will notice this is the same formula as is used for a rectangle. You can consider the parallelogram to have the same area as a rectangle of these dimensions if you look at what happens when you cut the right triangle from the right end and add it to the left end. The result is a rectangle 5 units wide and 4 units high.

The same formula applies even if the skew is so great that the bases do not overlap. (That much skew would not result in a triangle of the kind shown in this diagram.)

Answer:

(-1,-2)

Step-by-step explanation:

The solution is where the two lines intersect

The graphs intersect at x=-1, y=-2

(-1,-2)

Answer:

D

Step-by-step explanation:

The solution to a system of equations given graphically is at the point of intersection of the 2 lines.

The lines intersect at (- 1, - 2 ) ← solution

Answer: C-Japan

Step-by-step explanation:

on edge

Russia compares most closely to Brazil, except in Population growth rate, where it scored negative with Japan.

Growth rates refer to the percentage change of a specific variable within a specific time period.

Hence, Russia compares most closely to Brazil, except in Population growth rate, where it scored negative with Japan.

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Answer: [tex]\Large\boxed{h(x)=x-5}[/tex]

Step-by-step explanation:

[tex]\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\la\la\la\la\ddddddddddddddddddddddddddddddddcleverdddddd\ffffffffffffffffffffffffffffffffffffffff\pppppppppppppp\displaystyle\ \Large \boldsymbol{} h(x)=\frac{f(x)}{g(x)} =? \\\\\\f(x)=x^2-8x+15\\\\\\x^2-8x+\underbrace{15+1-1}_{15}=0 \\\\\\\underbrace{x^2-8x+16}_{(x-4)^2}-1=0 \\\\\\(x-4)^2-1\Longrightarrow f(x)=(x-5)(x-3)[/tex]                                                     [tex]\displaystyle\ \Large \boldsymbol{} h(x)=\frac{(x-3)(x-5)}{(x-3)}=\boxed{x-5}[/tex]                                          

Answer:

i dont know man

Step-by-step explanation:

i dont know