Please help me answer this

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.

x = 7 OR x = -3

I hope this helped

Answer:

8

Step-by-step explanation:

4 and jacob has 4. v. ...................

hola como estas espero que bien y que te hice el deposito de

Answer:

x = -11

Step-by-step explanation:

Convert fraction into negative exponential form: [tex](36^-^1)^x^-^4=(216^-^1)^x^+^1\\[/tex]

Simplify using exponent power rule: [tex](a^n)^m=a^n^m:36^-^x^+^4=216^-^x^-^1[/tex]

Convert both sides of the equation into terms with same base:[tex](6^2)^-^x^+^4=(6^3)^-^x^-^1[/tex]

Simplify using exponent power rule:

[tex](a^n)^m=a^n^m:6^-^2^x^+^8=6^-^3^x^-^3[/tex]

Based on the given conditions, corresponding exponents are equal:

[tex]-2x=8=-3x-3[/tex]

Rearrange unknown terms to the left side of the equation:

[tex]-2x+3x=-3-8[/tex]

Combine like terms: [tex]x=-3-8[/tex]

Calculate the sum or difference: [tex]x = -11[/tex]

Thurs, x = -11

[RevyBreeze]

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.

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)

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:

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/Step-by-step explanation:

r are roses,

r + 6

Ben plants 6r

[RevyBreeze]

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:

(b) c2+6x+9=16

(e) (x+)2=16

Step-by-step explanation:

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:

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:

-20x-2

Step-by-step explanation:

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: 334

Step-by-step explanation: so basically, I just looked up the answer 2 this and got this question and saw no 1 answered it so I got it wrong for u



please give brainliest I got a low score for u

also

if you do k12 this is the answers to the whole test




1. 334
2. 192
3. 1259
4. 72
5. 8

Answer:

258

Step-by-step explanation:

18x21=378

18-8=10

10x20=120

378-120=258

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:

A) 5/7

B)2/5

C)9/8 =1 1/8

D)11/15

E)9/4=2 1/4

Answer:

use symbolab

Step-by-step explanation:

Answer:

$324.80

Step-by-step explanation:

16*7= the area so

16*7=112

112sq yards

112*2.90=324.80

Answer:

Add and subtract similar variables

Step-by-step explanation:

(6x-x) + 5y - 2y

5x + (5y-2y)

=5x + 3y

Answer: 5x + 3y

Step-by-step explanation: You want to work with m variables that are the same so any item with an x is grouped together so 6x - x = 5x and the ys are grouped together 5y - 2y = 3y so your final answer would be 5x+3y

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

n + c = 15

4.5n + 12c = 135

c = 15 - n

12c = 180 - 12n

180 - 12n + 4.5n = 135

-7.5n = - 45

15n = 90

notebook = 6

6 + c = 15

calculator = 9

Speed is the ratio of distance and time

The elapsed time is the difference between the final time and the initial time.

So, we have:

Time elapsed = 4.5 seconds - 1.5 seconds

Evaluate the difference

Time elapsed = 3 seconds

Hence, the elapsed time is 3 s

The average speed is the quotient of the distance and the elapsed time.

So, we have:

Average speed = 4 meters/ 3 seconds

Evaluate the quotient

Average speed = 1.33 meters per second

Hence, the average speed is 1.33 m/s

Read more about speed at:

https://brainly.com/question/4931057

Answer:

Speed is the ratio of distance and time

The elapsed time is 3 seconds

The average speed is 1.3 meters per second

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:

Data set is second attached diagram

Step-by-step explanation:

1. See attached diagram for line plot

To graph data on a line plot, we put a dot (or an X) above each number in the data set. If a number appears twice in the data, we put two dots above that number.

2. Largest amount of snow is the largest value = [tex]3 \frac34[/tex] in

3. Least amount of snow is the smallest value = [tex]1 \frac34[/tex] in

4. 2 days as there are 2 values of [tex]3 \frac14[/tex] in

5. If the difference between the largest and smallest value is now 3, and the smallest value is [tex]1 \frac34[/tex] in then the new piece of data is:

[tex]1 \frac34 + 3=4 \frac34[/tex] in

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