2) Find the perimeter of the following
polygon.
7 in.
10 in.
12 in.
15 in.

Answer:The answer is y = 2x3 + 4x2 – x + 5 and  y = –3x2 + 4x + 9

Roots are both: x=-4, x= -1/2 , x= 1

Proof:

Solve for x over the real numbers:

2 x^3 + 4 x^2 - x + 5 = -3 x^2 + 4 x + 9

Subtract -3 x^2 + 4 x + 9 from both sides:

2 x^3 + 7 x^2 - 5 x - 4 = 0

The left hand side factors into a product with three terms:

(x - 1) (x + 4) (2 x + 1) = 0

Split into three equations:

x - 1 = 0 or x + 4 = 0 or 2 x + 1 = 0

Add 1 to both sides:

x = 1 or x + 4 = 0 or 2 x + 1 = 0

Subtract 4 from both sides:

x = 1 or x = -4 or 2 x + 1 = 0

Subtract 1 from both sides:

x = 1 or x = -4 or 2 x = -1

Divide both sides by 2:

Answer:  x = 1 or x = -4 or x = -1/2

Step-by-step explanation:

The answer is y = 2x3 + 4x2 – x + 5 and  y = –3x2 + 4x + 9

Roots are both: x=-4, x= -1/2 , x= 1

Explanation:

Solve for x over the real numbers:

2 x^3 + 4 x^2 - x + 5 = -3 x^2 + 4 x + 9

Subtract -3 x^2 + 4 x + 9 from both sides:

2 x^3 + 7 x^2 - 5 x - 4 = 0

The left hand side factors into a product with three terms:

(x - 1) (x + 4) (2 x + 1) = 0

Split into three equations:

x - 1 = 0 or x + 4 = 0 or 2 x + 1 = 0

Add 1 to both sides:

x = 1 or x + 4 = 0 or 2 x + 1 = 0

Subtract 4 from both sides:

x = 1 or x = -4 or 2 x + 1 = 0

Subtract 1 from both sides:

x = 1 or x = -4 or 2 x = -1

Divide both sides by 2:

Answer:  x = 1 or x = -4 or x = -1/2

Answer:

Given: ABC

CD bisects AB

CD  AB

Prove: ACD  BCD

Statement

1. ABC

CD bisects AB

CD  AB

2. AD  DB Side

3. CDA and CDB are right 

4. CDA  CDB Angle

5. CD  CD Side

6. ACD  BCD

Reasons

1. Given

2. A bisector cuts a segment into 2

 parts.

3.  lines form right .

4. All rt  are .

5. Reflexive post.

6. SAS  SAS

Answer:

y = 0.3

Step-by-step explanation:

[tex](3.2y-1.8)-(5.2y+3.4)=-5.8 \\ \\ = 3.2y - 1.8 - 5.2y - 3.4 = - 5.8 \\ \\ 3.2y - 5.2y - 1.8 - 3.4 = - 5.8 \\ \\ - 2y - 5.2 = - 5.8 \\ \\ - 2y = 5.2 - 5.8 \\ \\ - 2y = - 0.6 \\ \\ y = \frac{ - 0.6}{ - 2} \\ \\ y = 0.3[/tex]

Answer

y= -11/2

Explanation

3.2y-+1.8-5.2y-3.4=-5.8

Collect like terms

-2y-5.2=-5.8

Move the constant to the right

-2y=5.8+5.2

Calculate

-2y=11

Divide

y=-11/2

Answer:

Exact form: v=80/13

Nearest tenth: 6.2

Step-by-step explanation:

Hope it helps!

Answer:

6 + 7 + 8 = 21

Step-by-step explanation:

6, 7, and 8 are consecutive integers.

6 + 7 is 13. 13 + 8 = 21. So, 6 + 7 + 8 are consecutive integers that equal 21.

Answer:

6+7+8= 21

Step-by-step explanation:

6,7,8 follow consecutively. and if you add them, the sum is 21

Answer:

713232

Step-by-step explanation:

Used a calculator

Answer:

b and d

Step-by-step explanation: i did the assignment

Answer:-416/5

Step-by-step explanation:

Answer:

Please check the explanation.

Step-by-step explanation:

Given the equation

[tex](x)+(x+3) +3(x+3)-1=87[/tex]

simplifying the equation

[tex]x+x+3+3x+9-1=87[/tex]

adding similar elements

[tex](x+x+3x)+(3+9-1-87)=0[/tex]

[tex]5x-76=0[/tex]

Thus, the equation is a linear equation in one variable 'x'.

A term is a single mathematical expression, so the simplified expression has two terms which are:

The term 5x has the variable 'x' of power 1.

The term -76 does not involve any variable, Hence, -76 is a constant term.

Answer:

The answer is $95.2.

Step-by-step explanation:

Each cake costs $95.2, so you just have to divide for the answer. Also, thank you for the early "have a great"s. Have a nice day. :)

Answer:

7 and hewo leyla

Step-by-step explanation:

Answer:

Step-by-step explanation:

slope is the x axis and y intercept is the y axis

so 1/2 will go on the x axis and -9 will go on the y axis

1/2 uses the rise over run method

Answer:

Answer is in the screenshot. The equation for the line is y=1/2 x - 9

Step-by-step explanation:

To graph a line when you know the slope and y intercept, you make a point on the y intercept. Your y intercept iIs -9 so you would make a point on (0,-9).

After you have the point on (0,-9) you use the slope to create the rest of your line. Slope is just Rise  

                            Run

Your slope is 1/2. That means your next point on the line is up 1 unit and right 2 units. The next point on the line is (2,-8).

Answer:

A triangle has nagle 35, 120 degrees, and 35 degrees

Step-by-step explanation:

Answer:

The Triangle that has 115 32 33 or B

Step-by-step explanation:

115+32+33=180 All triangle angles measure 180.

Answer:

Step-by-step explanation:

y=4+5,50x y=money

x=fabric

Answer:

-3

Step-by-step explanation:

Nickels: 22

Dimes: 24

Quarters: 27

2 more dimes than nickels, we already know that there are 22 nickles so...

Dimes= 24

3 less dimes that quarters ^(we already know how many dimes).

All we have to do is add 3 to the amount of dimes!

Quarters 27

____________________________________________________________

Now to find the amount of money you have to find out what each coin equals and multiply the number of coins by the cost of each coin, and then by 100 because there are 100 cents in 1 dollar.

22 nickels*5/100= $1.10

24 dimes*10/100= $2.40

27 quarters*25/100= $6.75

1.10+2.40+6.75= $10.25

The amount of money he has in $10.25

Step-by-step explanation:

2.5kg=£1.40

4.25kg= x

do cross multiplication

2.5x = 5.95

x=£2.38

Answer= £2.38

Answer: domain: [2,3,5,9] . range [5,11,13,20]

Step-by-step explanation: also possible, depending on how the instructor defines the parameters

For domain, find the lowest and highest x values  [2,9]

for range, tale the lowest and highest y values [5,20]

Answer:

I'm confused you did not provide the graph that is referenced on this question...

Answer:

[tex]d = 5[/tex]

General Formulas and Concepts:

Order of Operations: BPEMDAS

Distance Formula: [tex]d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

Step-by-step explanation:

Step 1: Define points

(2, -3)

(5, 1)

Step 2: Solve for d

Answer:

20

Step-by-step explanation:

x - 9 = 11

+9         +9

x = 20

Answer:

900,000

Step-by-step explanation:

Round 500 and above so round up to 900,000.

Hope this helps plz hit the crown :D

Answer:

900,00

899,765   →   900,000

Answer:

20

Step-by-step explanation:

apply BODMAS

10*2+3+2-5

20

Answer:

no

Step-by-step explanation:

i think its not proportional because 12 and 5 dont have nothing in common they are not divisble by each other

Answer:

a

Step-by-step explanation:

Answer:

B, 6.8

Step-by-step explanation:

Let's first find how many feet it is per 1 inch. We can do this by dividing 5 by 2

5/2= 2.5

Now it is 1 inch : 2.5 feet

17/2.5 = 6.8

1 x 6.8 = 6.8

6.8 inches : 17 feet

You could also solve this by doing

17/5 =3.4

3.4 x 2 = 6.8

6.8 inches : 17 feet

22. l = 12m

b = 10m

Perimeter = 2(l + b)

= 2(12 + 10)

= 24 + 20

= 44m

Area = l×b

= 12 × 10

= 120m²

(a) Fencing required = 44m

Cost per metre = $12

Cost for the fencing of 44m = 12 × 44

= $528

(b) Levelling required = 120m²

Cost per metre² = $50

Cost for the levelling of 120m² = 120 × 50

= $6000