Find the area of a regular octagon with
a side length of 10 cm. Round to the
nearest tenth.
10 cm

Answer:

the area would be 15 if you use are equals 1/2 base times height

Answer:

x=64°

Step-by-step explanation:

x=180-90-26 (angles on a str line)

=64°

Answer:

64 is the answer to this question

Step-by-step explanation:

180÷2=90

90-26=64

Answer:

35, 67 and 78

Step-by-step explanation:

the angles are:

n, 2n-3 and 2n+8

there are 180 degrees in a triangle, so adding those terms together will give us 180

5n + 5 = 180

180 - 5 = 175

5n = 175

175 / 5 = 35

n = 35

now we have n we can put it in to the formula we have for the angles at the start:

n = 35

2n - 3 = 67

2n + 8 = 78

so the angles are

35, 67 and 78

Answer:

3n - 4m

Step-by-step explanation:

(2n-5m)+(n+m)

so we get this equation and from here, we expand the equation by removing the brackets, you should get:

2n-5m+n+m and just solve from here.

to make it easier, put the like terms together:

2n+n+m-5m

= 3n-4m

Answer:

3n - 4m

Step-by-step explanation:

(2n – 5m) and (n + m) in this case have the same value if the parentheses are removed.  We end up with:

2n – 5m

 n +   m

--------------        Grouping like terms vertically, as shown here, may make this

                         addition a bit easier.

2n – 5m

 n +   m

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

 3n - 4m (final answer)

option C is correct because a line bisecting parallel lines makes the same angle on each line at the point of intersection

so they all will make 61°

Answer: Choice C

Amy is correct because a nonlinear association could increase along the whole data set, while being steeper in some parts than others. The scatterplot could be linear or nonlinear.

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

Explanation:

Just because the data points trend upward (as you go from left to right), it does not mean the data is linearly associated.

Consider a parabola that goes uphill, or an exponential curve that does the same. Both are nonlinear. If we have points close to or on these nonlinear curves, then we consider the scatterplot to have nonlinear association.

Also, you could have points randomly scattered about that don't fit either of those two functions, or any elementary math function your teacher has discussed so far, and yet the points could trend upward. If the points are not close to the same straight line, then we don't have linear association.

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

In short, if the points all fall on the same line or close to it, then we have linear association. Otherwise, we have nonlinear association of some kind.

Joseph's claim that an increasing trend is not enough evidence to conclude the scatterplot is linear or not.

Answer:

Joseph claims that a scatterplot in which the y-values increase as the x-values increase must have a linear association. Amy claims that the scatterplot could have a nonlinear association. Which statement about their claims is true?

A) Joseph is correct because only a line will increase along the whole data set.  The scatterplot will have a positive, linear association.

B) Joseph is correct because only a line will decrease along the whole data set.  The scatterplot will have a negative, linear association.

C) Amy is correct because a nonlinear association could increase along the whole data set, while being steeper in some parts than others. The scatter plot could be linear or nonlinear.

D) Amy is correct because only a nonlinear association could increase along the whole data set. A line has the same slope at any point, but a curve can get steeper at different points.

Step-by-step explanation:

I got it right on ed.

(its C/3 btw)

Answer: column A= temperature column B= wind speed. Label A= wind speed label B= Temperature

Step-by-step explanation:

Answer:

Column A =  

✔ temperature

Column B =  

✔ wind speed

Label A =  

✔ wind speed

Label B =  

✔ temperature

Step-by-step explanation: Just did it in the assignment of edge :)

Answer:

( y + 1 )

Step-by-step explanation:

3y² - 2y - 5

(3y - 5) (y + 1)

Answer:

E.1.06(26.50+10d)

Step-by-step explanation:

d+e

i think i its d im not sure to

Answer:

Ivan had 288 sweet while Ken had 672 sweets

Step-by-step explanation:

Let the number of sweets owned by Ken and Ivan be k and v respectively.

After Ken gave away 5/7 of his sweet, what he had left

= k - 5k/7

= 2k/7

he had 2/3 as many sweets as Ivan then

2k/7 = 2v/3

Divide both sides by 2 and cross multiply

7v = 3k

Ivan then gave away 120 sweets, Ivan would have

v - 120 = k/4

multiply both sides by 4

4v - 480 = k

7v = 3(4v - 480)

7v = 12v - 1440

12v - 7v = 1440

5v = 1440

v = 1440/5

= 288

7v = 3k

7 * 288 = 3k

k = 7 * 288/3

= 672

Answer:

Step-by-step explanation:

69

"Is Mark a Masochist?" is the 170th episode of Unus Annus, hosted by Markiplier and Ethan Nestor-Darling.

Answer:

170th episode of Unus Annus brought to us by Markiplier and Ethan Nestor-Darling

This is what i do when i have nothing better to do in life

Step-by-step explanation:

the answer is in the image above

A rotation maps a line to a line, a ray to a ray, a segment to a segment, and an angle to an angle.

A rotation preserves lengths of segments.

A rotation preserves measures of angles. Step-by-step explanation:

You Welcome :)!

Answer:

So basically you have to multiply.

Step-by-step explanation:

If one US Dollar is equal to 100 bells then how many US Dollars would you need to get to 186,000 bells?

Mk Let's use our brains here.

Let's just convert everything to bells real quick. No dollars.

100 bells times what equals 186,000?

100 x ?  = 186,000

That Number is 8600

100 x 8600 = 186,000

So now that we have that number, how many US dollars is equal to 8600?

It's 86!

Because 100(bells) x 86(dollars) = 8600 bells'

So your answer is 86 dollars

Hope this helped!

- Unbrand -

(If this is wrong sorry, I'm not that good at math! :(. )

Answer: 6a

Step-by-step explanation:

A + 5A just equals 6A. Let me know if I answered incorrectly or if you want me to clarify.

Answer:

The correct answer would be A

Step-by-step explanation:

Answer:

53

Step-by-step explanation:

this will help

Answer:

2 units

Step-by-step explanation:

A triangle is a polygon with three sides and three angles. Types of triangle are acute, obtuse, scalene, isosceles, equilateral and right angled triangle.

Since point D and E are midpoints of the sides of triangle ABC, hence:

AD = BD = 3t, BE = CE = 4t, AC = 7t + 6

The perimeter of triangle ABC = AC + BC + AB = AC + AD + BD + BE + CE;

Substituting:

48 = 7t + 6 + 3t + 3t + 4t + 4t = 21t + 6

48 = 21t + 6

21t = 42

t = 2 units

Answer:

500 1/8" (500.125 inches)

Answer:

perimeter is 46

Step-by-step explanation:

Sq(BT) = sq(AT) + Sq(AB)

Sq(17) = Sq(8) + Sq(AB)

So AB = 15

So perimeter of ABCT is 15 + 15 + 8 + 8 = 46

Segments AB and CB are tangent by the Pythagoras theorem, So the perimeter of ABCT is 46 units.

The perimeter of any given figure is the sum of the measure of boundaries of that figure.

Segments AB and CB are tangent.

By the Pythagoras theorem,

[tex](BT)^2 = (AT)^2 + (AB)^2\\(17) ^2= (8) ^2+ (AB)^2[/tex]

So AB = 15

So perimeter of ABCT

= 15 + 15 + 8 + 8

= 46

To learn more about the perimeter click here;

https://brainly.com/question/6465134

#SPJ2

Answer:

y = - [tex]\frac{1}{3}[/tex] x - 2

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = 3x - 3 ← is in slope- intercept form

with slope m = 3

Given a line with slope m then the slope of a line perpendicular to it is

[tex]m_{perpendicular}[/tex] = - [tex]\frac{1}{m}[/tex] = - [tex]\frac{1}{3}[/tex] , then

y = - [tex]\frac{1}{3}[/tex] x + c ← is the partial equation

To find c substitute (- 3, - 1) into the partial equation

- 1 = 1 + c ⇒ c = - 1 - 1 = - 2

y = - [tex]\frac{1}{3}[/tex] x - 2 ← equation of perpendicular line

Answer:

$339.00

Step-by-step explanation:

If you put $25 each month into a savings account that paid a simple interest rate of 6.5% each year, how much would you have in your account at the end of two years?

We solve the above question using the Equation:

A = P(1 + rt)

P = Principal = Amount deposited each month = $25

The amount deposited in a year = $25 × 12 months = 300

Calculation:

First, converting R percent to r a decimal

r = R/100 = 6.5%/100 = 0.065 per year.

Solving our equation:

A = 300(1 + (0.065 × 2)) = 339

A = $339.00

Therefore, you would have $339 in your account after 2 years

Answer:

25 because I need to use mayh

Answer:

= 3*(4x^3+1)^2

= degree 6

Step-by-step explanation:

Answer:

Option D

Step-by-step explanation:

Properties of a rhombus,

1). Diagonals of a rhombus bisect the opposite angles.

2). Sum of adjacent two angles of a rhombus is 180°.

By property (1),

Diagonal JL will bisect the angles ∠MJK and ∠KLM.

Therefore, m∠KLM = 2(5x + 3)°

Similarly, diagonal KM will bisect the angles ∠JKL and JML.

Therefore, m∠JKL = 2(9x - 11)°

By property (2),

2(9x - 11)° + 2(5x + 3)° = 180°

9x - 11 + 5x + 3 = 90

14x - 8 = 90

14x = 98

x = 7

Since, m∠KLM = 2(5x + 3)°

                        = 2(5×7 + 3)°

                        = 76°

Therefore, Option D will be the answer.