Don't guess!
I will mark brainliest if its correct!
Don't answer if you don't know!
Also no links!

Answer:

l = 14

Step-by-step explanation:

The perimeter of a rectangle is

P =2(l+w)

The width is x-6

w = x-6

The length is 8 units longer than the width

l = w+8

l = x-6+8

l = x+2

We can substitute this into the equation for Perimeter, which is given as 40

40 = 2(x+2 + x-6)

Combine like terms

40 =2 (2x-4)

Divide by 2

40/2 = 2/2 (2x-4)

20 = 2x-4

Add 4 to each side

20+4 =2x-4+4

24 = 2x

Divide by 2

24/2 =2x/2

12=x

We want to know the length

l = x+2

l =12+2

l = 14

D

"What is a variable?

A variable is used in a Fair Test. A variable is any one of the elements of the test which could be changed. They can change the outcome of an experiment.

In a fair test, only one variable is allowed to be manipulated – all others have to be kept the same,or “controlled”."

Answer:

A- 75.4 millimeters cubed

Step-by-step explanation:

3mm to the 4th power estimates to A

Answer:

Step-by-step explanation:

Answer:

56.52

Step-by-step explanation:

Volume of a cylinder = π[tex]r^{2}[/tex]h

                                   = 3.14 x [tex]3^{2}[/tex] x 2

                                   = 3.14 x 9 x 2

                                   = 56.52

I know someone already answered this but this is what I thought was right, sorry if it's wrong.                   

Answer:

27 Degrees

Step-by-step explanation:

Since 63 and x make 90 degrees, 90-63 is 27 which gives you the answer. The equation is X=90-63.

Answer:

63 + x = 90

Step-by-step explanation:

The desired equation is 63 + x = 90, because the angles 63 and x are complementary (they add up to 90 degrees).

Answer:

Tiffany just got an aquarium for her rare turtle. She wants to fill it with water but it came without the volume measurement on it. She measures and finds aquarium's length is 30 inches, width is 12 inches, and height is 18 inches. How many cubic inches of water does she need?

Step-by-step explanation:

The formula for right rectangular prism is Length×Width×Height

30×12×18 = 6480

So she needs 6,480 in³ of water

Answer:

A. Surface Area

B. Surface Area

C. Volume

D. Volume

E. Surface Area

F. Surface Area

G. Volume

Step-by-step explanation:

Answer:

575

Step-by-step explanation:

If a sample of 50 is selected and ten out of that are infected, dividing you would get my answer. To get it, divide the sample amount that were infected by the whole amount. I am unsure if this is correct but fingers crossed this helps. Feel free to talk it through with me.

Answer:

D

Step-by-step explanation:

When iron reacts with air and water, it forms Iron (III) oxide, also known as rust, which is reddish-brown.

Answer: D

--

Hope this helps

Answer:

I know you said no guessing, but I'm assuming it's the first one, F.

Answer:

The second graph as per my best guess LOL

Step-by-step explanation:

LMK if I'm wrong please

Answer:

it is 3

Step-by-step explanation:

cause 3 is the highest exponent value

Answer:

The degree of this polynomial is 3.

Step-by-step explanation:

Hey!

==================================================================

When a polynomial has more than one variable, we need to look at each term to find out what the degree is. Terms are separated by + or - signs.

Find the degree by adding the exponents of each variable in it,

The largest such degree is the degree of the polynomial.

Let's start out by finding the degrees for each terms:

3x³ = The degree, or exponent, of x is 3.

5x² =  The degree, or exponent, of x is 2.

1 = Constant Terms do not have a degree.

So, since the largest degree of a term is the degree of the polynomial., The degree of this polynomial is 3, since that is the highest!

==================================================================

Hope I Helped, Feel free to ask any questions to clarify :)

Have a great day!

More Love, More Peace, Less Hate.

       -Aadi x

Answer:

that's strange I got 80 too

Step-by-step explanation:

 even the internet says its 80

Answer:

Step-by-step explanation:

Ok sooo I get 80 too I’m stuck

Answer:

For 6 its B

Step-by-step explanation:

For 7 its A

Answer:

for 6 is b and for 7 its a

Step-by-step explanation:

Answer:

80

Step-by-step explanation:

thank you so much for the points, have a great day.

Answer: Scalene

Step-by-step explanation:

None of the angles equals the other so no isosceles or equilateral and a right triangle had a right angle and all right angles equal 90 degrees.

The marked angle in 2 different ways will be ∠HLK or ∠KHL and ∠KHL = ∠HLJ - ∠KLJ.

The angle is the distance between the intersecting lines or surfaces. The angle is also expressed in degrees. The angle is 360 degrees for one complete spin.

The analysis of mathematical representations is algebra, and the handling of those symbols is logic.

The marked angle in 2 different ways will be given as,

The first way will be

∠HLK or ∠KHL

The second way will be

∠KHL = ∠HLJ - ∠KLJ

The marked angle in 2 different ways will be ∠HLK or ∠KHL and ∠KHL = ∠HLJ - ∠KLJ.

More about the angled link is given below.

https://brainly.com/question/15767203

#SPJ2

Answer:

Let me figure it out rq hold on

how to find the surface area:

The surface area of the triangular prism is the sum total of the areas of its bases and its lateral faces,

Answer:

217 = 217/100 = 2.17

Step-by-step explanation:

Answer:

18 1/12 ft = base length

Step-by-step explanation:

The area of a triangle of base b and height h is A = (1/2)(b)(h).

Since we want the measure of the base we solve this formula for b:

2A = (b)(h)

                                                                                                  2A

and then divide both sides to obtain a formula for b:  b = -----------

                                                                                                     h

Substituting 217 ft^2 for A and 24 ft for h, we get:

b = 2*217 ft^2 / 24 ft = 18.0833....  ft

If the answer must contain a fraction, take the 18 and hold it and convert the remaining 0.08333... to a fraction.  One way of doing this is to use a calculator.  On my old TI calculator, I would type in 0.0833333333..

and then press the MATH key and then select Option 1:  Decimal to fraction.

Doing this yields 1/12.  You can check this result by dividing:  1/12 = 0.08333...

Then the final answer, converted from 18.08333... ft, is

18 1/12 ft = base length

Answer:

144 ft^2

Step-by-step explanation:

Here we have a trapezoid with a triangle inside.

The legs of the trapezoid are 18 ft and 8 ft, and so the average length of the trapezoid is (18 + 8)/2 ft, o 13 ft.  The total area of the trapezoid is thus:

A = (13 ft)(16 ft) = 208 ft^2

Now we must find the area of the white triangle and subtract it from the area of the trapezoid already found.  The area formula for a triangle i

A = (1/2)(base)(height), which in this case is A = (1/2)(8 ft)(16 ft), or

A = 64 ft^2.

Subtracting the area of the triangle from that of the trapezoid yields

Area of figure = 144 ft^2

Answer:

1. 1 rectangle and 2 squares

2.lx_..._=w  area 12x9 which 108    triangle   1/2xbxh   1/2x12x2 which is 12 area of polygon would be 130

Step-by-step explanation:

Answer:

1. x=-13

2. x=2

Step-by-step explanation:

Answer:

1.  145-(3squared times 4)=109

2. 45 divided by 9 times 12-8= 52

3.  2 squared +3 times 4-12= 4

4.[155-(3 times 9) times 2] -12= 89

5. [(6 times 2) +(5 times 5)  times 3= 111

6. 2 times {15+[24-(1.5 times 2)]}= 72

Step-by-step explanation:

(BOMDAS) brackets, operations, multiplication, division, addition, subtraction

1. (deal with the brackets first)

3 squared=9 then times by 4 =9*4=36

so..

145-36=109

2. (start with division )

45 divided by 9 =5

so

5 times 12-8= 52

3. 2 squared = 4

4 times 3 =12

so

4+12-12 =4

4.  (deal with brackets first)

3 times 9 = 27

27 times 2=  54

155-54= 101

101-12=89

5. (deal with the brackets first)

6 times 2 =12    

5 times 5=25

so 12+25=  37 times 3 = 111

6.  (deal with the brackets first)

1.5 times 2= 3

24-3= 21

15+21=36

2 times 36= 72

hope this helps!!!

Answer:

#1) <KIH

#2) <HIK

Just make sure the I is in the middle since I is the middle and essentially the marked angle.

Answer:

HIK and KIH

Step-by-step explanation:

Answer:

The answer is "C"

Step-by-step explanation:

Answer:

Answer C.  This point lies between the two axes and its coordinates satisfy both equations

Step-by-step explanation:

Line A: y = x − 4

Line B: y = 3x + 4

Let's actually solve this system, using substitution:  Equate

Line A: y = x − 4   to   Line B: y = 3x + 4, obtaining:

                  x − 4  =     3x + 4

Subtract (x - 4) from both sides.  Doing so yields

                         0 = 2x + 8, and so x = -4.

From Line A let's find y:   Letting x = -4, we get:  y = -4 - 4 = -8

and so the solution is (-4, -8).  This matches Answer C.  This point lies between the two axes and its coordinates satisfy both equations.

Answer:

The average is 24 so her answer is reasonable cause it is not too far off.

Step-by-step explanation:

Average = sum/count

(16 + 18 + 18 + 24 + 25 + 27 + 28 + 31 + 31 + 32)/10

240/10

24

24 is close to 26