Help with this question
Factor: m- 81

Answer:

-2x,y5

Step-by-step explanation:

Hope this helped

Answer:

No, because 7/2 can be simplified to 21/6, and that is not proportional.

Step-by-step explanation:

Answer:

-4

Step-by-step explanation:

subtracting form a negative will result in a negative number

Answer:

c)-4

Step-by-step explanation:

-1 minis 3 is 3 less that -1

Answer:

x+8

Step-by-step explanation:

4x-3x=x

5-(-3)=8 or 5+3=8

Reason its adding is because a - times a - equals a positive

Answer:

[tex](x,y)=(4,4).[/tex]

Step-by-step explanation:

The given number 23x0255y7283 is divisible by both 9 and 11.

For any number to be divisible by 9, the sum of all the digit of the number must be divisible by 9.

Here, the sum of all the digits,

2+3+x+0+2+5+5+y+7+2+8+3=37+x+y.

The possible value of x and y are:

[tex]0\leq x\leq 9[/tex] and [tex]0\leq y\leq 9[/tex]

[tex]\Rightarrow 0\leq (x+y)\leq 18[/tex].

So, the possible value of (x+y) so that 37+x+y is divisible of 9 are:

x+y=8,17 ...(i)

Now. for any number to be divisible by 11, the difference of the sum of all the digits at the odd position and the sum of all the digits at the even position of the number must be either 0 or divisible by 11.

So, (2+x+2+5+7+8)-(3+0+5+y+2+3)=11+x-y  is either 0 or divisible by 11.

As [tex]0\leq x\leq 9[/tex] and [tex]0\leq y\leq 9[/tex]

[tex]\Rightarrow 0\leq x-y\leq 9[/tex]

So, the possible value of (x-y) is 0.i.e

x-y=0

[tex]\Rightarrow x=y\;\cdots(iii)[/tex]

Form equation (i),

For x+y=8,

2x=8

[tex]\Rightarrow x=4[/tex].

So, from equation (iii), y=4. So

(x,y)=(4,4)

And for x+y=17,

2x=17

[tex]\Rightarrow x=8.5[/tex], which is not possible ay the digits x, y, are integer.

Hence, only one ordered pair (x,y) possible, which is

[tex](x,y)=(4,4).[/tex]

The answer "yes" applies to addition, subtraction, and multiplication. This is because we can take any two integers and add them to get some other integer

eg: 5+7 = 12

We can subtract two integers to get some integer

eg: 9-1 = 8

And we can multiply two integers to get an integer

eg: 4*6 = 24

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

The only one that isn't closed is division. We can divide some integers to get another integer

eg: 10/2 = 5

but there are cases where dividing two integers does not lead to another integer

eg: 8/5 = 1.6

The result 1.6 is not an integer since it has a decimal part

Also, the example your teacher provides has

1/6 = 0.167 approximately which is also not an integer

Answer:

Least to greatest

Step-by-step explanation:

912.202

912.21

913.601

913.61

Add zero's next time, (to 912.21  and 913.61 . It could help.)

Step-by-step explanation:

3/75

4/100

12/300

The completed table is:

Eggs                                 Time (hours)

  3                                            75

 100                                        2500

  12                                          300

In a double number line diagram, equivalent ratios are represented by two parallel number lines.

Given that, the hen takes 25 hours to produce 1 egg.

1 egg = 25 hours

3 eggs = 25 × 3 hours

3 eggs = 75 hours

Similarly,

100 eggs = 2500 hours

and,

12 eggs = 300 hours

Hence, the completed table is:

Eggs                                 Time (hours)

  3                                            75

 100                                        2500

  12                                          300

Learn more about the double number line:

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Answer:

the answer is

Step-by-step explanation:

156.558 or 157.0

or

0.0060

Answer:

Lets calculate the slope of the line 'l'

Slope is rise over run of a line, so we will see how much the y of the line changes by changing x by 1

So, basically we will select a point on the line and see how much the y-value increases for the point rightward to our point

we see that the y increased by 1 and hence, its slope is 1

Now, the slope of line 'k'

again, we will select a point and go one point to the right

here, we see that the y increases by 2

therefore the slope of line 'k' is 2

Answer:

12 minutes

Step-by-step explanation:

Mark walks in 3 minutes. Darnell walks 4 times as long to walk to school as Mark did.

You need to multiply 3 x 4 = 12 minutes

Answer:

130 ± 1.82 inches i.e the range of the values is 128.18 inches to 131.82 inches.

Step-by-step explanation:

The range of values required here implies the values fall between the least and maximum values.

Since the values can vary by 1.4%, the range can be determined by:

1.4% of 130 = [tex]\frac{1.4}{100}[/tex] x 130

                  = 0.014 x 130

                  = 1.82

The addition or subtraction of 1.82 to/from 130 inches gives the required range.

i.e the range of allowable values = 130 ± 1.82 inches.

Thus,

130 - 1.82 = 128.18 inches

130 + 1.82 = 131.82 inches

The values falls between 128.18 inches to 131.82 inches.

Answer:

put a dot on point (2,-4) then go one to the right and one down hope this helps

Step-by-step explanation:

The equation of the line having a slope of -1, and passing through the point (2, -4) is x + y = - 2.

The equation of a line is the relation between the x-coordinates and y-coordinates of the points on the line, such that all (x, y) points, satisfies this equation.

The slope-intercept form of a line is y = mx + b, where m is the slope and b is the y-intercept of the line.

In the question, we are asked to graph the line with slope -1, and passing through the point (2, -4).

We know that, the slope-intercept form of a line is y = mx + b, where m is the slope and b is the y-intercept of the line.

Substituting m = -1, x = 2, and y = -4, in the equation, we get:

-4 = -1(2) + b,

or, b = -4 + 2 = -2.

Thus, the equation of the line is: y = -1(x) - 2,

or, x + y = -2.

Thus, the equation of the line having a slope of -1, and passing through the point (2, -4) is x + y = - 2.

The graph for the equation is attached.

Learn more about equations of line at

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Answer:

[tex]Time = 1.2\ hours[/tex]

Step-by-step explanation:

Given

[tex]Speed= 85\ miles/hour[/tex]

Required

Determine the time for 102 miles

In this case, we make use of Speed formula as follows:

[tex]Speed = \frac{Distance}{Time}[/tex]

This gives:

[tex]85 = \frac{102}{Time}[/tex]

Solve for Time

[tex]Time = \frac{102}{85}[/tex]

[tex]Time = 1.2\ hours[/tex]

Hence, the time needed is 1.2 hours

Answer: x^2+6x+9

Step-by-step explanation:

this will factor out to

X^2+6x+9

Answer:

x^2 + 6x + 9

Step-by-step explanation:

This is asking for (x+3) (x+3)

Using the FOIL method

(x * x) First, x times x

+ 3x Outside, x times 3

+ 3x Inside, x times 3

+ 9 Last, 3 times 3

Therefore, we have

(x*x) + 3x + 3x + 9

And simplified

x^2 + 6x + 9

Answer:

Undefined it looks like, if not,  it is zero.

Step-by-step explanation:

:>

Answer:

The scale factor represents a proportional relationship between the scale drawing and the building’s dimensions. If the dimensions change, then the scale factor must also change to preserve the relationship.

Step-by-step explanation:

Answer:

The scale factor is a proportional relationship.   The scale factor represents a proportional relationship between the scale drawing and the building’s dimensions. If the dimensions change, then the scale factor must also change to preserve the relationship. Enlargements have a scale factor greater than 1.  Reductions have a scale factor between 0 and 1. The proportion should be preserved.

Hope this Helps!

3751.25 cm³

Hi there !

Volume (sphere) formula

V(s) = (4/3) × π × r³

we have two hemisheres

V(h) = (4/3) × π × r³ /2

= (2/3) × π × r³

V₁ = 2/3 ₓ π ₓ (12cm)³

= 2/3 ₓ π ₓ 1728cm³

= 1152π cm³

V₂ = 2/3 ₓ π ₓ (4cm)³

= 2/3 ₓ π ₓ 64cm³

= 128π/3 cm³

V = V₁ + V₂

= 1152π cm³ + 128π/3 cm³

= 3617.28 cm³ + 133.97 cm³

= 3751.25 cm³

Good luck !

Answer:

[tex]\huge\boxed{2.93\%}[/tex]

Step-by-step explanation:

Calculate the difference:

[tex]0.273-0.265=0.008[/tex]

Calculate the ratio:

[tex]\dfrac{0.008}{0.273}=\dfrac{0.008\cdot1000}{0.273\cdot1000}=\dfrac{8}{273}[/tex]

Convert to percentage:

[tex]\dfrac{8}{273}=\dfrac{8}{273}\cdot100\%=\dfrac{800}{273}\%\approx2.93\%[/tex]

Answer:

70:28

Step-by-step explanation:

70:28 because you just multiply 14 by both numbers and get your answer.

Answer:

$1700

Step-by-step explanation:

0.25 * 4 = 1

6,800/4 = $1700

Answer:

1700

Step-by-step explanation:

6,800/4

(divided by 4 because if you multiple 0.25 by 4 you get one)

6,800/4 = 1700

Answer:

C. 11

Step-by-step explanation:

15-4=11

Answer:

Follows are the solution to this question:

Step-by-step explanation:

In the given question some of the data is missing so, its correct question is defined in the attached file please find it.

Let

A is quality score of A

B is quality score of B

C is quality score of C

[tex]\to P[A] =0.55\\\\\to P[B] =0.28\\\\\to P[C] =0.17\\[/tex]

Let F is a value of the content so, the value is:

[tex]\to P[\frac{F}{A}] =0.15\\\\\to P[\frac{F}{B}] =0.12\\\\\to P[\frac{F}{C}] =0.14\\[/tex]

Now, we calculate the tooling value:

[tex]\to p[\frac{C}{F}][/tex]

using the baues therom:

[tex]\to p[\frac{C}{F}] = \frac{p[C] \times p[\frac{F}{C} ]}{p[A] \times p[\frac{F}{A}] + p[B] \times p[\frac{F}{B}]+p[C] \times p[\frac{F}{C}] }[/tex]  

            [tex]= \frac{ 0.17 \times 0.14 }{0.55 \times 0.15 + 0.28 \times 0.12 + 0.17 \times 0.14 } \\\\= \frac{0.0238}{0.0825 + 0.0336 + 0.0238} \\\\= \frac{0.0238}{0.1399} \\\\=0.1701[/tex]

Answer:

i just took the test and its A and C

Step-by-step explanation: