d. 3, 7, 13, 21, 31.
Cual es la expresión algebraica??

Answer:

18 pi inches

Step-by-step explanation:

The area of a circle is

A = pi r^2

81 pi = pi r^2

81 = r^2

Taking the square root of each side

9 = r

We can now find the circumference

C = 2 * pi *r

C =2 * pi *9

C = 18 pi

Answer:

25°

Step-by-step explanation:

2x - 5°  = x + 20°

2x - x = 20° + 5°

x = 25°

Answer:

x = 4[tex]\sqrt{2}[/tex]

Step-by-step explanation:

Using the sine ratio in the right triangle and the exact value

sin45° = [tex]\frac{1}{\sqrt{2} }[/tex] , then using the upper 45°

sin45° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{4}{x}[/tex] = [tex]\frac{1}{\sqrt{2} }[/tex] ( cross- multiply )

x = 4[tex]\sqrt{2}[/tex]

Answer:

2806.72

Step-by-step explanation:

use the phythagrome theorm

Answer:

N = 18

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Equality Properties

Step-by-step explanation:

Step 1: Define

Identify

N + 9 = 27

Step 2: Solve for N

Answer:

just for yourself and you to a Dictionary with th

Answer:

74

Step-by-step explanation:

well, you see, потому что я плохая сука-ниггер, да бруддахол лмао

Answer:

15m+80 would be the correct equation

Answer:

15*m=(530-80)

Step-by-step explanation:

30$ per lawn. 530-80=450. This gives us how much money he still needs to buy his gulf clubs. But, the question says that Carlos can earn the rest of the money ($450) by mowing 15 lawns.

Here's how we model that as an expression:

15m=(530-80)

15 lawns for m dollars would get him 530-80 (450) or the remaining amount.

Hope this helps!

hi I am sorry I wish I could help

Answer:

x ≈ 6.2

Step-by-step explanation:

Using Pythagoras' identity in the right triangle

x² + 17.1² = 18.2²

x² + 292.41 = 331.24 ( subtract 292.41 from both sides )

x² = 38.83 ( take the square root of both sides )

x = [tex]\sqrt{38.83}[/tex] ≈ 6.2 ( to the nearest tenth )

Answer:

Answer:so -7-5 is graeter than  - 1 /1/5 and it above 1/1/5

Step-by-step explanation:

Let's first take a look at our x here. --- (x + 2)^2

Because we are adding a two to our x, this means that we are shifting our graph 2 to the left. Remember that with functions, it's always the opposite!

There is nothing attached to the y, so we are not moving our function up or down.

And then the radius of our circle. Remember that the equation requires us to square this value (... = r^2), so we need to take the square root of 4. The square root of 4 is 2.

With this information, let's now look at our options.

Option A - INCORRECT, the radius is too large

Option B - INCORRECT, this was shifted 2 units to the right

Option C - INCORRECT, the radius is too large

Option D - CORRECT, the radius is 2 and the circle was shifted 2 units to the left

Hope this helps!! :)

Answer:

D

Step-by-step explanation:

The equation for a circle is

(x-h)^2 + (y-k)^2 = r^2

where (h,k) is the center and r is the radius

(x+2)^2 + (y)^2 = 4

Rewritng

(x- -2)^2 + (y-0)^2 = 2^2

The center is at ( -2,0) and the radius is 2

C and D are the only circles with a center at (-2,0)

B,D are the only circles with radius 2

Answer:D.5

Step-by-step explanation:

Answer:

flutter, flap, beat, agitate, vibrate; tremble          could be one of these

Step-by-step explanation:

Answer: vibrate, tremble

Step-by-step explanation:

Answer:

[tex]{ \boxed{ \tt{height = \sqrt{ {(hypotenuse)}^{2} - {(adjacent)}^{2} } }}} \\ h = \sqrt{ {(12)}^{2} - {( \frac{6}{2} )}^{2} } \\ h = \sqrt{135} \: cm \\ \\ { \underline{ \blue{ \tt{⚜becker \: jnr}}}}[/tex]

The height of the cone is 11.6 centimeters.

'A cone is a shape formed by using a set of line segments or the lines which connects a common point, called the vertex, to all the points of a circular base. The distance from the vertex of the cone to the base is the height of the cone. The circular base has the measured value of radius. And the length of the cone from the vertex to any point on the circumference of the base is the slant height.'

According to the given problem.

Given,

Diameter = 6 cm

Radius = 6/2 cm

            = 3 cm

Slant height (l) = [tex]\sqrt{r^{2} + h^{2} }[/tex]

                 ⇒ l² = r² + h²

                 ⇒ l² - r² = h²

                 ⇒ 12² - 3² = h²

                 ⇒ 144 - 9 = h²

                 ⇒ h² = 135

                 ⇒ h = √135

                 ⇒ h = 11.6 cm

Hence, the height of the cone is 11.6 centimeters.

Learn more about cones here: https://brainly.com/question/10670510

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Answer:

f(x) ≤ x2 – x – 1

Step-by-step explanation:

Answer:

The graph will have opposite x-intercepts of b and –b and be symmetrical about the y-axis. The graph will have a y-intercept at –b2.

Step-by-step explanation:

i don't have the step by step explanation but that answer is also right

the x intercepts are b and b

the graph has opposite x intercepts

the graph is symetrical  over the y axis

the y intercept is at b²

Answer:

f(x) ≤ x2 – x – 1

Answer:

ummmmm i think apple?

Step-by-step explanation:

because if 4 equals green and you put the square root of branch in there you will get branch×apple tree+water=apple my bad its green apple

i did it wrong i just redid the question and found the right answer. so if you put branch×square root of 9 apples+apple tree=9 apples right? well yes but if you add branch+square root of 4 more apples you will get in total 13 apples.

Answer:

[tex]52[/tex]

Step-by-step explanation:

[tex]n + 94 = 32 + 114[/tex]

[tex]n + 94 = 146[/tex]

[tex]n = 146 - 94[/tex]

[tex]n = 52[/tex]

Answer:

the answer u wrote is correct because the question says to just subtract x number of dog by 7 dogs and u get a total of 35 dogs

Answer:

Step-by-step explanation:

[8*25]-[35+11]

=200-[35+11]

=200-46

=154

Answer:

154

Step-by-step explanation:

(8*25)-(35+11)

=200-46

=154

Answer:

Step-by-step explanation:

Hope this helps u!!

Answer:

30m x 40m

Step-by-step explanation:

The diagram is 15cm x 20cm

since 1cm = 2m

the backyard measures

30m x 40m

Answer:  The backyard is 30 meters by 40 meters

30 meters = horizontal dimension

40 meters = vertical dimension

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

Explanation:

The pool on paper is 7.5 units across horizontally. Applying the scale factor, we can see that it corresponds to 7.5*2 = 15 meters

The 20 meter portion is vertical. On paper, we see that it's 10 units tall. So the "times 2" operation applies to jump from 10 cm to 20 meters

Or you could note that the ratio 1 cm : 2 m scales up to 10 cm : 20 m after multiplying both parts by 10.

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

With that in mind, all we need to do really is count the number of squares across the top and along the left side. Across the top, we have 15 squares. That 15 cm corresponds to 15*2 = 30 meters in length.

Along the left side, the figure is 20 cm tall. So that corresponds to 20*2 = 40 meters.

The backyard is 30 meters by 40 meters. This includes the backyard, shed, and other features in the diagram. The entire backyard is 30*20 = 600 square meters. If you wanted to know the area of the grass only, then you'd subtract off the areas of the pool, shed, etc.

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

Your teacher mentions that the pool is similar to the backyard overall. Since we're in a geometry setting, the word "similar" is very specific of course.

We can match up the corresponding lengths to form a proportion like so

(large horizontal)/(small horizontal) = (large vertical)/(small vertical)

30/15 = 40/20

2 = 2

So that confirms we have similar figures, at least in terms of the sides being proportional. Everything being a rectangle helps show that all angles are the same.

B. 4y - 2

Hope this helps! :)

Answer:

B. 4y - 2

Step-by-step explanation:

2( y + 1 ) + 2( y - 2 )

= 2y + 2 + 2y - 4

= 2y + 2y + 2 - 4

= 4y - 2

= 4y - 2

Answer:

The lines are parallel because they have the same slope(5x)

Answer:

A

Step-by-step explanation:

Some photos look cut off but from what I can see the trend line in graph A fits the best since the line is the correct slope and captures the most data points out of all the answers.

Graph (A) shows the best fit of the line because it has a positive slope and the line is very close to the dots, option (A) is correct.

A mathematical notion called the line of the best fit connects points spread throughout a graph. It's a type of linear regression that uses scatter data to figure out the best way to define the dots' relationship.

[tex]\rm m = \dfrac{n\sum xy-\sum x \sum y}{n\sum x^2 - (\sum x)^2}[/tex]

[tex]\rm c = \dfrac{\sum y -m \sum x}{n}[/tex]

We have a dot plot shown in the picture.

As we can see in the given picture, the values of independent and dependent variables increase, which means the slope of the line should be positive.

In graph (A) the line of the best fit is very close to the dots and best describes the data.

Thus, graph (A) shows the best fit of the line because it has a positive slope and the line is very close to the dots option (A) is correct.

Learn more about the line of best fit here:

brainly.com/question/14279419

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Answer:

Step-by-step explanation:

#5

(a)

(b)

(c)

(d)

Another way:

#6

Sample space:

Total 16 outcomes

a)

b)

Answer:

45º

Step-by-step explanation:

alternate interior angles are congruent

x + 30 = 75

Subtract 30 from both sides

x = 45º

Answer:

301.719

Step-by-step explanation:

Area of a circle is 3.142 x r². Hope this helps!!!

The reflection of M(-5, -6) across the y-axis is point R (5,-6)