PLEASE HELP ME. ITS DUE TODAY

Answer:

(x+2) (x+1) (x-1)

Step-by-step explanation:

You would add and subtract the second term to the expression  

Factor x3+2x2−x−2

x3+2x2−x−2

=(x+2)(x+1)(x−1)

Answer:

y= 1/2x-2

Step-by-step explanation:

Answer:

x = 20

Step-by-step explanation:

Since the two angles are vertical, they are equal.

That means

3x + 50 = 6x - 10

60         = 3x

20         = x

Answer:

[tex]x=20[/tex]

Step-by-step explanation:

[tex]We\ know\ that,\\"When\ two\ lines\ intersect\ the\ pair\ of\ Vertically\ Opposite\ Angles\\ are\ always\ equal"\\Here,\\As\ the\ lines\ intersect\ each\ other,\ the\ angle\\ measuring\ (3x+50)\ and the\ angle\ measuring\ (6x-10)\ are\ equal.\\Hence,\\3x+50=6x-10\\3x-6x=-10-50\\-3x=-60\\x=\frac{-60}{-3}\\x=20[/tex]

Answer:

8+p

Step-by-step explanation:

add 3 plues 5 and you got ur answer

Answer:

thank you for the points :D

Step-by-step explanation:

Answer:

y = 1/2x + 4 1/2

Step-by-step explanation:

Answer:

x= -7, y= 12

Step-by-step explanation:

To find the value of x and y, first label the 2 equations.

2x +y= -2 -----(1)

x +y= 5 -----(2)

(1) -(2):

2x +y -(x +y)= -2 -5

2x +y -x -y= -7 (expand bracket)

x= -7

subst. x= -7 into (2):

-7 +y= 5

y= 5 +7 (+7 on both sides)

y= 12

Answer:

I think the answer is 42.

Step-by-step explanation:

If there is a 50% increase in members then the number of members would go up 14. Adding 14 to 28, you come away with 42.

Sorry if it's wrong.

Answer:

a

Step-by-step explanation:

a

Answer:

20

Step-by-step explanation:

Solving  for x using the vertical angles we get , the value of x is: x = 20.

Here, we have,

from the given figure we get,

angle (2 + 3x) and angle62 are opposite angles.

we know that,

When two lines intersect each other, then the opposite angles, formed due to intersection are called vertical angles or vertically opposite angles. A pair of vertically opposite angles are always equal to each other.

so, we have,

angle (2 + 3x) = angle62

(2 + 3x) = 62

or, 3x = 60

or, x = 20

Hence, Solving  for x using the vertical angles we get , the value of x is: x = 20.

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Answer: First Option (5√5)

Answer:

First, you see if there are any perfect squares that are a factor of 125. If you do find some, find what is seemingly the biggest. In this case, it is 25, I think. So you can then out it as root(25×5), I think. As 25 is a perfect square, you can square and then put the number you get on the outside. So since 5×5=25, it becomes 5(root)5, which essentially means 5×(root)5, I think.

Answer:

We can say we start with 490 grams and after 1 year we have (490 * .81 grams) or 396.9 grams.

We can solve for half-life by this equation:

Half life = (time * log 2) / log (beginning amount / ending amount)

Half-life = (1 year * 0.30102999566) / log (490 / 396.9)

Half life = (1 year * 0.30102999566) / log (1.2345679012 )

Half life = (0.30102999566) / 0.091514981109

Half-Life = 3.2894067399  years

Well, that's a start.

Step-by-step explanation:

The half life of the given radioactive isotope will be 3.2894067399  years.

The amount of time it takes to disintegrate by half an initial amount. For a given reaction, a reactant's half-life t-1/2 is the time it takes for its concentration to reach a value which is the arithmetic mean of its initial and final value.

Here, Element X starts with 490 grams

After 1 year we have  (490 X 0.81 grams) or 396.9 grams

Now, We can solve for half-life by this equation:

Half life = (time  X log 2) / log (beginning amount / ending amount)

Half-life = (1 year X 0.30102999566) / log (490 / 396.9)

Half life = (1 year X 0.30102999566) / log (1.2345679012 )

Half life = (0.30102999566) / 0.091514981109

Half-Life = 3.2894067399  years

Thus, the half life of the given radioactive isotope will be 3.2894067399  years.

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Answer:

the answer is 114,210..................

Answer:

Option C. 154 cm²

Step-by-step explanation:

From the question given above, the following data were obtained:

Pi (π) = 22/7

Diameter (d) = 14 cm

Area (A) =?

Next, we shall determine the radius of the circle. This can be obtained as follow:

Diameter (d) = 14 cm

Radius (r) =?

r = d/2

r = 14/2

r = 7 cm

Finally, we shall determine the area of the circle as illustrated below:

Pi (π) = 22/7

Radius (r) = 7 cm

Area (A) =?

The area of a circle can be obtained by using the following formula:

A = πr²

A = 22/7 × 7²

A = 22/7 × 7 × 7

A = 22 × 7

A = 154 cm²

Thus, the area of the circle is 154 cm²

Answer:

area of circle=π(14/2)²=22/7 ×7²=22×7=154cm²

Based on the calculations, the value of x for this regular polygon with the given interior angle is equal to 3.

A polygon can be defined as a two-dimensional geometric shape that comprises straight line segments and a finite number of sides. Also, some examples of a polygon include the following:

Note: The number of sides (n) of a hexagon is 6.

In Geometry, the sum of the interior angles of both a regular and irregular polygon is given by this formula:

Sum of interior angles = 180 × (n - 2)

Sum of interior angles = 180 × (6 - 2)

Sum of interior angles = 180 × 4

Sum of interior angles = 720°.

Next, we would determine the value of x by using this formula:

Interior angle × Number of sides = Sum of interior angles

Substituting the parameters into the formula, we have;

(-134x + 516 + 2x) × 6  = 720

-134x + 516 + 2x = 720/6

-134x + 516 + 2x = 120

516 - 120 = 134x - 2x

396 = 132x

x = 396/132

x = 3.

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Answer:

6552

Step-by-step explanation:

P.S Can I have brainliest?

Answer:

6,552

Step-by-step explanation:

Answer:

the unknown side of triangle is 15 in :)

Answer:

i believe the answer is x=6

Step-by-step explanation:

12x + 4 = 2(5x + 8)

12x + 4 = 10x + 16

12x - 10x = 16 - 4

2x = 12

2x/2=12/2

x=6

Answer:

500

Step-by-step explanation:

Answer:

y=-93

Step-by-step explanation:

You just substitute 10 for x

y=-7(10)-23

y=-70-23

y=-93

Answer:

Length of scale = 15 cm

Width of scale = 5 cm

Step-by-step explanation:

Dimensions of the kitchen of Mai are given as:

Length of kitchen = 6 m

Width of kitchen = 2 m

Scale to be used = 1 to 40

To find:

The drawing with labeling and dimensions of the scale drawing.

Solution:

First of all, let us understand about the concept of scaling.

Scaling is a method to represent big structures on paper.

For this purpose, we decide a scaling factor and draw the big structures on paper by scaling down (making it small) by using a scaling factor.

Here, the scale factor used is 1 to 40.

i.e. 1 unit on scale is equivalent to 40 units on the actual kitchen.

40 units of kitchen = 1 unit of scale

1 unit of kitchen = [tex]\frac{1}{40}[/tex] units of scale

6 m of kitchen = [tex]\frac{1}{40}\times 6\ m = \frac{600}{40}\ cm = 15\ cm[/tex]

Length of scale = 15 cm

40 units of kitchen = 1 unit of scale

1 unit of kitchen = [tex]\frac{1}{40}[/tex] units of scale

2 m of kitchen = [tex]\frac{1}{40}\times 2\ m = \frac{200}{40}\ cm = 5\ cm[/tex]

Width of scale = 5 cm

Please refer to the attached image as well for representation of given scale.

9514 1404 393

Answer:

  5

Step-by-step explanation:

The degree of the polynomial is the degree of the highest-degree term. The degrees of the terms are ...

  4, 5, 1

The highest degree is 5, so the degree of the polynomial is 5.

Answer:

X= -5

Step-by-step explanation:

y varies directly with x,

so y=kx

-34=k×2

k= -17

85= -17× X

X= -5

Answer:

[tex]y = -2x + 10[/tex]

Step-by-step explanation:

Slope: [tex]m = \frac{y_{2}-y_{1} }{x_{2}-x_{1}}[/tex]

Slope-Intercept Form: [tex]y=mx+b[/tex]

[tex]m=\frac{8-0}{1-5}[/tex]

[tex]m = -2[/tex]

[tex]y = -2x + b[/tex]

[tex]0 = -2 (5)+b[/tex]

[tex]0=(-10)+b[/tex]

[tex]b = 10[/tex]

[tex]y = -2x + 10[/tex]

Answer:

11

Step-by-step explanation:

divide 209 by 19 to get an equal number of games each month (for 19 months), you will get 11 games each month.

Answer:11

Step-by-step explanation:Because 209 divided by 19

Dave's rate of completion is 4/3 walls per hour and this can be determined by using the concept of unit rate.

Given :

The following steps can be used in order to determine Dave's rate of completion:

Step 1 - The concept of unit rate can be used in order to determine Dave's rate of completion.

Step 2 - According to the given data, Dave completes on average 2/3 of a wall in 1/2 of an hour.

Step 3 - Now, let Dave's rate of completion be 'x'.

Step 4 - So, the value of 'x' can be calculated as:

[tex]x = \dfrac{\dfrac{2}{3}}{\dfrac{1}{2}}[/tex]

Step 5 - Simplify the above expression.

[tex]x = \dfrac{2}{3}\times\dfrac{2}{1}[/tex]

[tex]\rm x = \dfrac{4}{3}\;walls \;per \;hour[/tex]

Therefore, Dave's rate of completion is 4/3 walls per hour.

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