Question : Simplify expres
x+3 + 7x-9
????????

Answer:

5x²+7x-4

Step-by-step explanation:

Given: (7x²+2x-1)-(2x²-5x+3)

Distribute: 7x²+2x-1-2x²+5x-3

Rearrange: 7x²-2x²+5x+2x-3-1

Combine like terms: 5x²+7x-4

Your final answer is thus 5x²+7x-4

Answer:

I would choose A

Step-by-step explanation:

Answer:

117

Step-by-step explanation:

brainliest please

Answer:

Next coordinate is (-1,-3)

Step-by-step explanation:

draw a graph in graph paper and mark all coordinates

The equation should be 105(0.15)+ x = 170 and the value of x is 154.25

Here we assume the hiking boots cost be x

So, the equation is

105(0.15) + x = 170

15.75 + x = 170

x = 170 - 15.75

x = 154.25

Learn more about the equation here: https://brainly.com/question/16746485

The answer id D(102)

That is because to solve first you would figure out the area of the rectangle by doing 5 x 15 which is 75. Than you would figure out the area of the triangle. To figure ou the he8ght you would do 11 - 5 and for the base you would do 15 - 3 - 3 and that would be 9. Than you would do 9 x 6 divided by 2 and that would be 27. Than you would add 27 to 76 and that would get 102.

Answer:

Help with what?

Answer:

62%

Step-by-step explanation:

Answer:

Divide each term by 1.77 and simplify.

52/1.77

Move the seven underneath the 52 and leave the x on one side.

x = 29.37853107

Step-by-step explanation:

Step-by-step explanation:

cost to produce 120 units

= C(120) = 1000+5.7(120) + .7(120^2) =

= 11764

cost to produce 100 units = C(100)

= 8570

rate of change = (11764-8570)/(120-100)

= 3194/20

= 159.70 dollars/unit

repeat the process for 100 to 101

Answer:

the slope of the line=0/6

Step-by-step explanation:

you can use the formula `y-y/`x-x, where (-8,5)=(x,y) and (-2,5)=(`x,`y)

5-5/-2--8

5-5/-2+8

0/6

Therefore, the slope of the line=0/6

Answer: The slope is 0 (undefined)

Step-by-step explanation:

A simple way to find slope of a line when given two points is to employ the use of a formula that essentially calculates it for you.  This formula is (y2-y1)/(x2-x1) with y representing the y coordinates and x representing the x coordinates.  For example you could write this as (5-5)/(-2-(-8)) which of course gives you an answer of 0 (undefined) because anything divided by 0 is automatically 0 (undefined) and as we see in our formula we are subtracting 5 from 5.

Answer:

3x+4

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Step-by-step explanation:

Answer:

55 guests

Step-by-step explanation:

131 = 21 + (2x)

subtract 21 from both sides

110 = 2x

x = 55 guests

Answer:

55 guests

Step-by-step explanation:

if he can afford to spend a total of $131, then you subtract the birthday cost ( $21 ) and divide the answer of those two ( $110 ) by $2 ( the amount for each guest ) which is 55, therefore, 55 is the largest number of guests Jeffrey can afford.

Step-by-step explanation:

[tex]y = a {b}^{x} \\ b = \frac{0.0006}{0.006} = 0.1 \\ a = 6 \\ y =6 \times {0.1}^{x} [/tex]

Answer:

[tex]427.5[/tex]

Step-by-step explanation:

[tex]95\times4.5[/tex]

Multiply:

[tex]95\times4.5=427.5[/tex]

427.5 is your answer.

Answer:

[tex]-\frac{3}{4}[/tex]

Step-by-step explanation:

Slope

(2, 5) and (14, -4)

_______________

When we solve for slope within two points, we have to follow the formula of slope.

[tex]\frac{y^2-y^1}{x^2-x^1}[/tex]

X and Y - The first and second number in both points

1 and 2 - The first or second number within one point

Substitute :

[tex]\frac{-4-5}{14-2}[/tex]

[tex]\frac{-9}{12}[/tex]

Simplify :

[tex]-\frac{3}{4}[/tex]

Answer:

Rewritten in slope-intercept form

y = mx + b

The answer is

m = -3/4

Answer:

24

Step-by-step explanation:

So basically just do 112 divided by 4 to find the length of each side. Then from there minus that one side by 4 to get what you need x to be to be the length of the one side. One side is 28. Also...

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Answer:

x=24

Step-by-step explanation:

Answer:

24

Step-by-step explanation:

3x+10=x+58

2x=48

x=24

Answer:

18m tall?

Step-by-step explanation:

Answer:

20 m

Step-by-step explanation:

The scale factor between the two triangles is 1/10 because of how 3/30 is 1/10.

Therefore we can calculate the height of the tree by multiplying the height of the smaller triangle by 10 to find the height of the tree.

2*10 = 20m

Answer: I think 2

Step-by-step explanation:

Because

Step-by-step explanation:

buffet or tells about the beliefs values behaviour and material object that constitute a people's way of life

Answer:

In sociology, traditional society refers to a society characterized by an orientation to the past, not the future, with a predominant role for custom and habit. Such societies are marked by a lack of distinction between family and business, with the division of labor influenced primarily by age, gender, and status.

Step-by-step explanation:

Hope it is helpful.....

Answer:

x/-5

Step-by-step explanation:

Just divide by 5 and the denominator will be 5 meaning x would have to be 4.

Make sure your 5 is negative so the whole equation also ends up negative. x/-5=-4/5

Answer:

y = x^2 +2

Step-by-step explanation:

x^2 is parabolic not linear

Answer:

39

Step-by-step explanation:

Given the function :

h(t) = t² + 2

From t = 5 to t = 8

when, t = 5

h(5) = 5² + 2

h(5) = 25 + 2

h(t) at t = 5 ; equals 27

when, t = 8

h(5) = 8² + 2

h(5) = 64 + 2

h(t) at t = 8 ; equals 66

Net Change :

h(8). - h(5)

66 - 27 = 39