How do find the circumference?

x = 7 OR x = -3

I hope this helped

Answer:

[tex]9(b + 5) - 4b = \\ 9b + 45 - 4b = \\ 5b + 45 = b + 9[/tex]

[tex] \looparrowright \sf9(b + 5) - 4b[/tex]

[tex] \\ \\ [/tex]

[tex] \looparrowright \sf9b + 45 = - 4b[/tex]

[tex] \\ \\ [/tex]

[tex] \looparrowright \sf9b + 4b + 45 = 0[/tex]

[tex] \\ \\ [/tex]

[tex] \looparrowright \sf5b + 45 = 0[/tex]

[tex] \\ \\ [/tex]

[tex] \looparrowright \sf5b = - 45[/tex]

[tex] \\ \\ [/tex]

[tex] \looparrowright \sf \: b = - 45 \div 5[/tex]

[tex] \\ \\ [/tex]

[tex] \looparrowright \sf \: b = -9[/tex]

Answer:

(x + 9)(x - 9)

Step-by-step explanation:

Apply the Difference of Two Squares formula: x² - y² = (x + y)(x - y)

Rewrite 81 at 9²

⇒ x² - 81 = x² - 9² = (x + 9)(x - 9)

Answer:

[tex]\left(x+9\right)\left(x-9\right)[/tex]

Step-by-step explanation:

[tex]x^2 - 81[/tex]

factor 81 as 9²

[tex]x^2-9^2[/tex]

using formula: a² -b² = (a+b)(a-b)

[tex]\left(x+9\right)\left(x-9\right)[/tex]

Answer:

Step-by-step explanation:

[tex]8(m + 3) = 5(m + 9) \\ 8m + 24 = 5m + 45 \\ 8m - 5m = 45 - 24 \\ 3m = 21 \\ \frac{3m}{3} = \frac{21}{3} \\ m = 7 \\ [/tex]

[tex] \frac{z - 6}{2z} = \frac{3}{4} \\ 4(z - 6) = 3(2z) \\ 4z - 24 = 6z \\ - 24 = 6z - 4z \\ - 24 = 2z \\ \frac{ - 24}{2} = \frac{2z}{2} \\ ( - 12) = z \\ [/tex]

Answer/Step-by-step explanation:

r are roses,

r + 6

Ben plants 6r

[RevyBreeze]

Answer:

(i) (b) RC

(ii) (d) 1/4 ar(ΔABC)

(iii) (b) 39 cm

(iv) (a) 90°

Step-by-step explanation:

(i) (b) RC

(ii) (d) 1/4 ar(ΔABC)

(iii) (b) 39 cm

(iv) (a) 90°

Answer:

B. $3

Step-by-step explanation:

A single 6-pound package is approximately $5 shipping fee.

A 2-pound package is approximately $3.50 shipping fee.

A 4-pound package is approximately $4.50 shipping fee.

The question stated, "What is the approximate difference (this means we are most likely subtracting) in cost of shipping a 2-pound and a 4 pound package(the and means we are adding both 4-pound and 2-pound together) opposed to a single 6-pound package?"

As calculated above, we should add the 2-pound package and the 4-pound package together.

3.5 + 4.5 = 8

One single 6-pound package is $5, so we need to subtract the 8 with the 5.

8 - 5 = 3

Answer:

  D  y= [x] -2

Step-by-step explanation:

The "floor" or "greatest integer" function graphs as a step function with a solid dot at the left end of each step. The point (0, 0) is one of those solid dots. When 2 is subtracted from the function value, the graph is shifted down 2 units so that it looks like the one given.

The given graph is of the equation ...

  [tex]\boxed{y=\lfloor x\rfloor -2}[/tex]

_____

Additional comment

The ceiling function ...

  [tex]y=\lceil x\rceil[/tex]

graphs as a step function with a solid dot at the right end of each step. There is a solid dot at (0, 0) for this function, as well.

Note that the function symbols have "hooks" above or below the argument to indicate ceiling or floor (respectively). The use of a square bracket [ ] for either of these functions would need to be accompanied by an explanation of the intended meaning. By itself, a square bracket has "hooks" both at the top and bottom, so does not represent either function unambiguously.

Answer:

The train is 0839

Step-by-step explanation:

First off, 0620 and 0746 are not available options, as Jean would've immediately know, as they're the only one with non-repeated minutes.

Now, when Marie says "I'm sure neither does Jean", it means she didn't get 06 or 07, as those are the number that has 0620 and 0746, which then she cannot ensure that Jean doesn't know the train arrival.

We're left with 0825, 0839, 0917, 0925 and 0950

After that, Jean said he knows the train number. So, he couldnt've gotten 25, as it is repeated in the 5 options we pick. => we're left with 0839, 0917 and 0950.

And then, Marie responds now she does as well, which it cannot be 09, as it is repeated.

So, the train number is 0839.

Answer:

(b) c2+6x+9=16

(e) (x+)2=16

Step-by-step explanation:

Applying the altitude theorem and solving algebraically, the length of DC is: 6.

If an altitude of a right triangle divides an opposite side into a and b, based on the altitude theorem, the height (h) of the altitude = √(ab).

Solving algebraically:

Let DC = x

Therefore:

BC = 4x

Applying the altitude theorem, we would have:

12 = √(4x × x)

12 = √(4x²)

12 = 2x

12/2 = x

6 = x

x = 6

Therefore, DC = x = 6.

Learn more about altitude theorem on:

https://brainly.com/question/10612854

Answer:

use symbolab

Step-by-step explanation:

I'm going to try the strategy of "narrow it down slowly."

Let's start with how many perfect squares there are less than 1000. We have

0^2 = 0

1^2 = 1

2^2 = 4

3^2 = 9

...

30^2 = 900

31^2 = 961

32^2 = 1024

This means there are 0...31 so 32 perfect squares less than 1000.

Three times an odd integer... this is tricky. If you think about it, if n is divisible by three, then n must have a factor of 9 in it (why?), so [tex]\sqrt n[/tex] must have a factor of three! Boom, now we just have to count how many odd numbers from 0...31 are divisible by three. The first one is 1(3), the second is 3(3), the third is 5(3), the fourth is 7(3), and the fifth is 9(3). This means there are five such numbers.

Answer:

144 in²

Step-by-step explanation:

Area of square: [tex]s^2[/tex]

Here s is 12 inches.

Using the formula:

area:  [tex]s^2[/tex]

area: 12²

area: 12 * 12

→ 144 in²

The formula to find area of square is:

[tex] \tt \: area = {s}^{2} [/tex]

Where,

In our case,

So,

[tex] \sf \: area = {12}^{2} [/tex]

[tex] \boxed{ \bf \: area = 144 \: {in}^{2}}[/tex]

Answer:

B. Parallelogram

Step-by-step explanation:

It should look something like this which is a parallelogram.

Parallogram is like a rectangle or square that is kinda slanted.

    ________

  /                /

/_______/

Answer:

vertex = (6, -9)

point = (0, 27)

see attached diagram for graph

Step-by-step explanation:

[tex]f(x)=x^2-12x+27[/tex]

Vertex form:  [tex]y=a(x-h)^2+k[/tex]

where (h, k) is the vertex

Rewrite function in vertex form:

[tex]\implies f(x)=(x-6)^2-36+27[/tex]

[tex]\implies f(x)=(x-6)^2-9[/tex]

Therefore, vertex = (6, -9)

As the coefficient of [tex]x^2[/tex] is positive, the parabola will open upwards (u shaped).

Point to plot:  

f(0) = 27

Therefore, point = (0, 27)

Answer: The answer is C

Step-by-step explanation:

Well, an example of a perfect square trinomial would look like is:

                   [tex]a^2-2ab+b^2[/tex]      or      [tex]a^2+2ab+b^2[/tex]

So since we already know what [tex]a^2[/tex] is and what [tex]2ab[/tex] is we just have to find [tex]b^2[/tex]

However, we would use the [tex]a^2-2ab+b^2[/tex] formula to solve this since we have a subtraction sign

Answer:

C

Step-by-step explanation:

16

Answer:

$0.80

Step-by-step explanation:

Let y be the number of cakes that can be bought then...

xy=4

y(2x+1)=13

Distribute the y to each term in the parentheses...

y(2x)+y(1)=13

2xy+y=13

xy=4

Multiply the second equation by 2...

2xy+y=13

2xy=8

Solve the equation using elimination (subtract the two equations and eliminate 2xy)...

y=13-8=5

Now, plug 5 back in for y to solve for x...

xy=4

5x=4

Divide both sides by 5

x=$0.80

Answer:

?=35

Step-by-step explanation:

Answer:

5/7 = 25/35

Step-by-step explanation:

First look at the numerators of the fractions. One fraction has both a numerator and denominator. Find the number that this numerator is multiplied by to get to the numerator that is missing its denominator. Multiply the known denominator by this number to find the unknown denominator.

Basically, what number did we multiply to get 25? its 5 (5x5=25)

So, multiply 7 by 5 and you'll get 35

Hope this helps!

Answer:

6 13/15

Step-by-step explanation:

Make both the numerator and denominator the same. Thean add the fractions together to get 6 13/15

Answer:

81

Step-by-step explanation:

the sum of adding 81 is 9, reversed 81 is 18 and 81 - 18= 63

Answer:        ans  is 36                                                                        

y-step explanation:

Answer:

They are not similar

Step-by-step explanation:

To see whether the triangles are similar or not we can compare their side lengths:

AB = 24

AX = 6

AX/AB = 1/4 is the ratio now let's compare this to AY/AC

AY/AC = 10/25 if we simplify this the result will be 2/5 as we can see the side lengths are not proportional so the triangles are not similar.

Step-by-step explanation:

Sum of the interior angles of a Pentagon = 540

Therefore, 100+x+(3x+30)+(2x-10)+80=540

100+x+3x+30+2x-10+80=540

Group like terms

x+3x+2x=540-100-30+10-80

6x=340

6x=340

6 6

x=56.6

Answer:

Undercoverage bias may be present because people in the workforce and many younger people could be excluded.

Step-by-step explanation:

first one 200 and second 6

Answer:

Step-by-step explanation:

1. 1300/65=20 sales

2.2+2=4

22-4=18

18/2=9

unknown number of inch=x+3

x=9

(9)+3=11

unknown number is 11 inch.

Answer:

The answer is y + 5 = 0

Step-by-step explanation:

We know that, the equation of a line passing through point P(a, b) and slope m is given by

(y – b) = m(x – a) ...(1)

Here, The given point is P(3, -5) and slope is m = 0

from (1) we get

[(y – (-5)] = 0(x – 3)

y + 5 = 0 is the required equation of line.

Thus, The answer is y + 5 = 0

-TheUnknownScientist 72

Answer:

144.44 units

Step-by-step explanation:

C = 2 * 3.14 * 23

C = 6.28 * 23

C = 144.44 units