please help me asap !!!

Step-by-step explanation:

(-8-9)+23

-17+23

6.........

The value of algebraic expression [(-8) + ( -9)] + 23 is 6.

Here,

We have to simplify;  the sum of -8 and -9, increased by 23.

And, find an algebraic expression.

What is Algebraic expression?

An algebraic expression in mathematics is an expression which is made up of variables and constants, along with algebraic operations.

Now,

The written expression is, the sum of -8 and -9, increased by 23.

It can be written as,

⇒ [(-8) + ( -9)] + 23

⇒ - 8 - 9 + 23

⇒ - 17 + 23

⇒ 6

Hence, The value of algebraic expression [(-8) + ( -9)] + 23 is 6.

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Answer:

Step-by-step explanation - w= o

Answer:

$115

Step-by-step explanation:

805 divide it by 7 you get 115 also got right guys trusted me ( >-< )

Answer:

yep! 115$ is correct! :)

Answer:

Your answer would be D It makes much more sense than the others

Step-by-step explanation:

good luck :)

Answer:

First option at second row , Option( C )

Step-by-step explanation:

In order to solve the problem,

First we need to arrange the numbers in ascending order.

4 , 7 , 8 , 10 , 11 , 13 , 15 , 15 , 22 , 28

Median = [tex]\frac{11 + 13}{2}[/tex]

             = 12

From the first range ( 4,7,8,10,11 ) , we can find Q1 also known as first quartile where Q1 = 8 ( middle-most number).

Similarly, from the second range ( 13,15,15,22,28 ) , we can find Q2 also known as third quartile where Q3 = 15 (middle-most number ).

Now, for the box plot,

We need to draw a number line from 0 to 32.

Next, we need to draw a box from Q1 to Q3 with a vertical line through the median.

Next, we put dots above 4 and 28 since our numbers start from 4 and end with 28.

Finally we join the dots and the box plot with a straight line.

Hence, option C is the correct choice.

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Answer:

4 %

Step-by-step explanation:

100/24=25/6=4 1/6

Given that,

The area of the rectangle, [tex]A=x^2-114[/tex]

Length of the rectangle, [tex]l=x+12\ m[/tex]

To find,

The width of the rectangle.

Solution,

The formula for the area of a rectangle is given by :

A = lb

b is width of the rectangle

[tex]b=\dfrac{A}{l}\\\\b=\dfrac{x^2-114}{x+12}\\\\b=\dfrac{x^2-12^2}{x+12}\\\\b=\dfrac{(x-12)(x+12)}{(x+12)}\\\\=(x-12)\ m[/tex]

So, the width of the rectangle is (x-12) m.

Answer:

C. [tex]x < -3[/tex] or [tex]x > 1[/tex].

Step-by-step explanation:

Let [tex]f(x) = x^{3}+3\cdot x^{2}-9\cdot x +7[/tex], the first derivate of the function is:

[tex]f'(x) = 3\cdot x^{2}+6\cdot x -9[/tex] (1)

By the Quadratic Formula, we determine the roots of this polynomial:

[tex]x_{1} = 1[/tex], [tex]x_{2} = -3[/tex]

And the factorized form of the polynomial is:

[tex](x-1)\cdot (x+3) > 0[/tex]

By law of Signs, the polynomial is increasing when [tex]x-1 > 0[/tex] and [tex]x +3 > 0[/tex] or [tex]x-1 < 0[/tex] and [tex]x+3 < 0[/tex], which means that:

[tex]x < -3[/tex] or [tex]x > 1[/tex]

Therefore, the right answer is C.

Answer:

The correct option is an option (c).

Given:

The given function is,

[tex]f(x)=x^{3}+3x^{2}-9x+7[/tex]

Computation:

The function is increasing when [tex]f'(x)>0[/tex].

Now, differentiating the given function with respect to [tex]x[/tex] up to first order we get,

[tex]f'(x)=3x^{2}+3(2x)-9(1)+0\\f'(x)=3x^{2}+6x-9\\=3(x^{2}+2x-3)\\=3(x(x+3)-1(x+3))\\=3(x+3)(x-1)[/tex]

So, the sign function is,

 Therefore, [tex]f'(x)>0[/tex] when [tex]x\in (-\infty ,-3)\cup (1,\infty )[/tex]

So, [tex]f(x)[/tex] is increasing on [tex]x<-3[/tex] or [tex]x>1[/tex]

Hence, the correct option is an option (c).

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Answer:

7 ft

Step-by-step explanation:

16-9=7

Answer:

Lines P and Q

Answer:

parallel lines are lines that are directly next to each other so i think line's

p and q

Step-by-step explanation:

please mark me the brainliest if i am right

Step-by-step explanation:

Leyes conmutativas. ...

- Leyes asociativas. ...

- Leyes distributivas. ...

- Leyes de idempotencia. ...

- Leyes de Morgan.

Answer: 39

Step-by-step explanation:

Answer:

d=7

Step-by-step explanation:

Answer:

The answer is y = 4x - 8.

Step-by-step explanation:

☆Remember: [tex]m = \frac{y_2 - y_1}{x_2 - x_1} [/tex]

☆Slope-intercept: [tex]y = mx + b[/tex]

---

☆We need to find the slope first. So just plug in according to the slope formula!

[tex]m = \frac{0 - 8}{2 - 4} = \frac{ - 8}{ - 2} = 4[/tex]

---

☆Now we need to find the y-intercept. We are going to plug in the slope and a set of coordinates to find the y-intercept.

[tex]y = mx + b \\ 8 = 4(4) + b \\ 8 = 16 + b \\ \frac{ - 16 = - 16 \: \: \: \: \: \: \: \: \: \: \: \: }{ - 8 = b \: \: \: \: \: \: \: \: \: \: \: \: \: \: } [/tex]

---

☆Now all we need to do is plug in and we are done!

[tex]y = 4x - 8[/tex]

▪Happy To Help <3

Answer:

30 miles

Step-by-step explanation:

60 ÷ 20 = 3

10 × 3 = 30

Answer: x-2y=-4

Step-by-step explanation:

Answer:

it should be c sorry if I get it wrong

Answer:

y = -3

Step-by-step explanation:

5y + 10/5 = -13 (distribute 5)

5y + 2 = -13 (simplify fraction)

5y = -15 (subtract 2 from both sides)

y = = -3 (divide 5 from both sides)

Checked worked:

5 ([-3] +2/5)

-15 + 10/5

-15 + 2 = -13

y = -3

Answer:

a= 98 b= 82 c= 98 is the answer .....

Answer:

Step-by-step explanation:

Given:

The line parallel to the given line containing the points (-3,3) and (-2,1).

Also, the parallel line passes through the point (4,1).

We need to determine the equation of the line in slope - intercept form.

Slope:

Since, the two lines are parallel, then their slopes are equal.

Thus, the slope of the parallel line can be determined using the formula,

Substituting the points (-3,3) and (-2,1), we get;

Thus, the slope of the line is

Equation of the line:

The equation of the line can be determined using the formula,

Since, the line passes through the point (4,1), let us substitute the point (4,1) in the above formula, we have;

Thus, the equation of the line is

Hence, y − 1 = −2(x − 4) is the correct answer.

:)

Answer:

5/12k = 29/36m

8b = 10w

9z = 15

Step-by-step explanation:

Combining the like terms in these sets of equations is quite easy and straightforward. All we do is carry the like terms to either of the side of the equation, and question is solved. As in below

1/4k + 1/4m - 2/3k + 5/9m =

1/4k - 2/3k + 1/4m + 5/9m = 0

-5/12k + 29/36m = 0

5/12k = 29/36m

-4b + 2w + (-4b) + 8w =

-4b - 4b + 2w + 8w = 0

-8b + 10w = 0

8b = 10w

6- 5z + 8 - 4z + 1​ =

6 + 8 + 1 - 5z - 4z = 0

15 - 9z = 0

9z = 15

Answer:

0.25

Step-by-step explanation:

Answer: ??

Step-by-step explanation:

This might help :/

Area of a circle = pie r^

Circumference = 2pie r

Answer:

a............ you are welcome

Step-by-step explanation:

Area of Park = Length * Width

Therefore Width = Area / Length

= (6/8) / (1/2) = (6/8) * (2/1) = 3/2 miles.

Answer:Area of Park = Length * Width

Therefore Width = Area / Length

= (6/8) / (1/2) = (6/8) * (2/1) = 3/2 miles.

Step-by-step explanation:

Answer:

5.06%

or

5.06329114%

Step-by-step explanation:

The increase if $4.

4/79 = 0.0506329114, which is 5.06%

Answer:

Rule + 30, Equation: w=d+30

Step-by-step explanation:

Hope this will help some of you!

The amount in dollar for w weeks be d= 30 x w.

A branch of mathematics known as algebra deals with symbols and the mathematical operations performed on them.

Variables are the name given to these symbols because they lack set values.

In order to determine the values, these symbols are also subjected to various addition, subtraction, multiplication, and division arithmetic operations.

Given:

Let w = the number of weeks.

Let d = the number of dollars April pays the service.

April pays a dog-walking service $30 each week to walk her dog.

So, the equation represents the situation

d= 30 x w

Hence, the amount in dollar for w weeks be d= 30 x w.

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