area of a regular heptagon

Answer:

B

Step-by-step explanation:

that is the definition of a function : every valid value of x gets exactly one value of y assigned as function result value.

that allows gaps. not every value on the x-axis has to be a valid x value for the function. and neither do we need every possible y value to be a valid function result value.

so, if we consider x to be the set of {2, 4, 6, 9}, then this is indeed a function.

2 gets 3, 4 gets 9, 6 gets 10, and 9 gets 5 assigned as y (function result) value.

all good and perfect - exactly one assigned value for every valid x value.

Answer:

(B) 1 is the answer.

Step-by-step explanation:

10/36+ 5(5-x)/36-5x/6= 0

x= -1

that means losing 1 point makes the game fair.

Answer:

B - 1

Step-by-step explanation:

100%

Answer:

Step-by-step explanation:

Step-by-step explanation:

Answer:

30

Step-by-step explanation:

(Solution: 12/20 + 12/x = 1, x = 30 min)

Answer:

C. minutes

Step-by-step explanation:

Answer: C minutes.

Step-by-step explanation:

Answer:

23.09 ft

Step-by-step explanation:

Here we are given that the angle from stake in ground to the top of the tree is 60° and the height of the tree is 40ft . We are interested in finding out the distance from stake to the bottom of the tree . For figure refer to the attachment .

From the figure , BC = 40ft which is the perpendicular of the right angled triangle ABC . Also assume that AB = x ft , which is the base of the triangle .

Now since we have base and perpendicular , we should use the ratio of tangent as ,

[tex]\rm\longrightarrow tan\theta =\dfrac{perpendicular}{base}=\dfrac{p}{b} [/tex]

And here [tex]\theta[/tex] = 60° . On substituting the respective values , we have ;

[tex]\rm\longrightarrow tan 60^o =\dfrac{40\ ft}{x \ }\\ [/tex]

And the value of tan60° = √3 , so that ;

[tex]\rm\longrightarrow \sqrt3 =\dfrac{40\ ft}{x} [/tex]

Cross multiply ,

[tex]\rm\longrightarrow x =\dfrac{40}{\sqrt3}ft. [/tex]

The value of √3 is 1.732 approximately .

[tex]\rm\longrightarrow x =\dfrac{40}{1.732}ft. [/tex]

Simplify,

[tex]\rm\longrightarrow \underline{\underline{\red{{x =23.09\ ft }}}} [/tex]

And we are done !

The element that has chemical properties most similar to element X is element 1.

Elements on the periodic table are ordered accordingly to the number of protons in each element.

The first one is hydrogen, with 1 proton, the second is helium, with two protons, and so on.

So, element 3 has one proton less than x, and element 4 has one proton more than x.

Then we have two more relations:

Horizontal lines are called periods, so 3, x, and 4 are on the same period (it is related to the energy level of the valence's electrons).

Vertical lines are called families because elements in vertical lines have similar chemical behavior.

This is the one that we care for this problem, we want to see which element has chemical properties most similar to element X, so we need to see which element is on the same family as element X.

As you can see, the only element on the same vertical line as X is element 1, so the correct option will be A.

If you want to learn more about the periodic table, you can read:

https://brainly.com/question/14514242

Answer:

B. 9

Hope it helps!

9

Step-by-step explanation:

3^4=81

3^2=9

therefore 81/9=9

The table that shows the proportional relationship between the number of batteries and the number of toy cars is as follows:

proportional relationships are relationships between two variables where their ratios are equivalent.

Therefore, If we establish the relationship between the number of batteries and the number of car toys, we can draw the table.

Therefore,

let

y = kx

where

y = number of toys

x = number of batteries

Therefore,

9 = 36k

k = 9 / 36

k = 1 / 4

y = 1 / 4 x

Therefore,

The question wants to draw a table for the proportional relationship between x(number of batteries) and y(number of toy cars).

learn more on proportional relationships here: https://brainly.com/question/12917806

i think that answers is x=9

The actual price is $46.73 lower than the expected price.

[tex]CPI_t=\frac{C_t}{C_0} * 100[/tex]

CPI=consumer price index in the current period

Ct= expected cost in current period

C₀ =cost in the base period

It is given that

Price in base period ie 1983 C₀= $78.75

The actual cost of the microwave oven = $92.66

Consumer Price Index= 177

So, expected price of microwave oven in the current period

Ct= CPIt * C₀ /100 = 177*78.75/100 = $139.39

Difference between the actual price and expected price = 139.39-92.66=$46.73

Therefore, The actual price is $46.73 lower than the expected price.

To get more about CPI visit:

https://brainly.com/question/5992428

Answer:

Options pls.

Step-by-step explanation:

Can u give options

Answer:

A) complementary angles

B) 58 degrees

Step-by-step explanation:

A) ∠DOE and ∠EOB are complementary angles since they both add up to 90 degrees (or right angle).

B) x + 32 = 90 (Complementary angles)

Subtract 32 to both sides

x = 90 - 32

x = 58 degrees.

[tex]\rule[225]{225}{2}[/tex]

Answer:

No Equation in Standard form can't be graphed in Curve.

Answer:

two small end square area=s^2.s=3.s^2=9.

but there are 2

Answer:

$0.95 x 6 = $5.70

Step-by-step explanation:

Multiply 95 x 6 and then divided the product by 100 or just multiply .95 x 6

Answer:

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

Given:

using cosine rule:

[tex]\sf cos(x) = \dfrac{adjacent}{hypotenuse}[/tex]

[tex]\sf cos(45) = \dfrac{4}{x}[/tex]

[tex]\sf x = \dfrac{4}{cos(45)}[/tex]

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

Solution:

Step-1: Find the missing angle.

Step-2: Review the following.

Step-3: Use Pythagoras theorem.

Answer:

y=3x^2,y=5^2,y=7x^2

Step-by-step explanation:

y=3x^2 is the widest, y=7x^2 is the narrowest, which leaves y=5x^2 in the middle

Answer:

Step-by-step explanation:

Uh, well, you can visit websites that have the first 100,000 digits of pi. I tried putting one of the links here, but I was warned and my answer was deleted, so this is the best that I can help you, I guess.

Answer:

w= 305

Step-by-step explanation:

Add 120 to both sides to isolate w.

120+185=305

Let me know if this helped <3

Hi! I hope you're enjoying your day!

I can help Maritza solve this maths problem. ;)

The first step in solving this problem is using the Distributive Property and distribute 5.

How to distribute 5:

multiply 5 times 4m and -6 and simplify :)

So let's do it! :)

5(4m-6)-10

20m-20-10

Now, combine like terms:

[tex]\boxed{\boxed{\bold{20m-30}}}[/tex]

And yeah, we can't simplify this expression, because 20m and -30 are not like terms.

Hope everything is clear.

If you have any questions, please comment.

#LearningIsFun

[tex]\rule{250}{2}[/tex]

Hello there! Your question is missing some important information to solve.  I will solve the equation by simplifying the expression. =)

Answer:

[tex]20m-40[/tex]

Step-by-step explanation:

Given the expression:

[tex]5(4m-6)-10[/tex]

You can simplify it as follows:

1. Apply the Distributive Property multiplying each term inside the parentheses by the number 5 outside:

[tex]=(5)~(4m)-(5)~(6)-10[/tex]

[tex]=20m-30-10[/tex]

2. Add the like terms (remember that like terms have the same variables with the same exponents):

[tex]=20m-40[/tex]

Hence, the answer is [tex]20m-40[/tex]

18

Step-by-step explanation:

first use the factor tree to find the factors of 90 and 126

90={2×3×3×5}

126={2×3×3×7}

for HCF take common factors with low exponents

HCF={2×3×3}

18

Answer:

(x + 10)(x - 10)

Step-by-step explanation:

x² - 100 = x²- 10²

x² - 100 is the difference of two squares.

The factorization of the difference of two squares is

a² - b² = (a + b)(a - b)

x² - 100 = (x + 10)(x - 10)

Answer:

[tex]{x,y}={3,3}[/tex]

Step-by-step explanation:

System of Linear Equations entered :

[tex][1] 2x + 3y = 15\\ [2] x + y = 6[/tex]

Graphic Representation of the Equations :

3y + 2x = 15        y + x = 6  

Solve by Substitution :

// Solve equation [2] for the variable  y

 [2]    y = -x + 6

// Plug this in for variable  y  in equation [1]

  [1]    2x + 3•(-x +6) = 15

  [1]    -x = -3

// Solve equation [1] for the variable  x

  [1]    x = 3

// By now we know this much :

   x = 3

   y = -x+6

// Use the  x  value to solve for  y

   y = -(3)+6 = 3

Solution :

{x,y} = {3,3}

Answer:

[tex](3,3)[/tex]

Step-by-step explanation:

[tex]\begin{bmatrix}2x+3y=15\\ x+y=6\end{bmatrix}[/tex]

[tex]\mathrm{Substitute\:}x=\frac{15-3y}{2}[/tex]

[tex]\begin{bmatrix}\frac{15-3y}{2}+y=6\end{bmatrix}[/tex]

[tex]\begin{bmatrix}\frac{15-y}{2}=6\end{bmatrix}[/tex]

[tex]y=3[/tex]

[tex]\mathrm{For\:}x=\frac{15-3y}{2}[/tex]

[tex]\mathrm{Substitute\:}y=3[/tex]

[tex]x=\frac{15-3\cdot \:3}{2}[/tex]

[tex]15-9=6[/tex]

[tex]\frac{6}{2}=3[/tex]

[tex]x=3[/tex]

Answer:

27.4 ft

Step-by-step explanation:

because only 27.4 small tree

Answer:

the spaces between the bars are not equal.

Answer:

the spaces between the bars are not equal

Step-by-step explanation: