If the length of a side of a square is increased from 4 to 8, which of the following statements is true?

A.) Both area and perimeter are doubled.
B.) Both the area and perimeter are quadrupled.
C.) The perimeter is doubled and the area is quadrupled.
D.) The perimeter is quadrupled and the area is doubled.

Answer:

hi

Step-by-step explanation:

We see a set of linear equations. Hence, a system of linear equations. So we solve them by process of elimination, multiplying the top equation by 5 to eliminate first such that  

(2x+y=20)*5

6x-5y=12

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

10x+5y=100

6x-5y=12  

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

16x = 112 .............After dividing 16 we get  

x = 7

Now we plug x  = 7 back into the original first equation to obtain the y value such that  

2(7) + y = 20  

12 + y = 20

-12         -12

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

y = 8  

I hope this helped!

Answer:

Option A.

Length 16 feet

Width 12 feet

Step-by-step explanation:

2 cm=4 feet to scale

so you have this fraction:

2/4

or:

1/2

so for every cm, it's 2 feet.

6x2=12

8x2=16

so the width is 12 ft, the length is 16 ft. Option A

Answer: I believe it's A

Hope this helped love<3

9514 1404 393

Answer:

  6 18/25 = 6.72

Step-by-step explanation:

The right triangles are similar, so corresponding sides are proportional.

  ∆XZY ~ ∆ZWY

  XZ/XY = ZW/ZY

  24/25 = x/7

  x = 7(24/25) = 168/25

  x = 6 18/25 = 6.72

Answer:

11. G (6,4)

12. H (4,9)

13. I (0,7)

14. J (9,5)

15. K (3,3)

16. L (5,2)

Step-by-step explanation:

eh you know

Answer:

11-(6,4) 12-(4,9) 13(0,7) 14-(9,5) 15(3,3) 16-(5,2)

Step-by-step explanation:

remember first you take the X Axis number that is horizontal, then Y on the Vertical Axis

Answer:

7)

to work it out:

180-110= 70

because there are two unknown angle we're gonna assume they're both the same amount. So if they are both the same and equal then we need to half 70 which will be equal to the two sided. So. 70/2= 35

So the 2 x's = 35 each

8)

you need to put this all into an equation so:

7x-11 + 5x-2 + 2x-3 = 180 degrees

12x - 9 + 2x-3

10x + 6

Actual answer:

14x-16

Step-by-step explanation:

Answer:

false

Step-by-step explanation:

Answer:

36

Step-by-step explanation:

9 x 4  =46

Answer:

9999 is largest four digit name

Answer:

He is not correct.

Step-by-step explanation:

This is because when you subtract -11 and 10.75, you get the answer of -21.75 instead of -0.25. He added the expression instead of subtracting it. Hope it helps

Answer:

Greg

Step-by-step explanation:

Greg is selling games for $10 each, while Martin is selling games for $12 each.

120 divided by 10 is 12, 60 divided by 6 is 10

Answer:12

Step-by-step explanation:

Answer:

it's not showings the "following" part

Answer:

12

Step-by-step explanation:

Answer:

0.02941176...

— Used a calculator for this, so it is guarantied correct! Hope this helps. Brainliest appreciated (and very much needed)

Answer:  4/5 (first choice)

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

Work Shown:

sin(angle) = opposite/hypotenuse

sin(A) = BC/AC

sin(A) = 24/30

sin(A) = (6*4)/(6*5)

sin(A) = 4/5

Answer:

87.92 in

Step-by-step explanation:

The formula for the circumference of a circle is C=2πr.

C = 2(3.14)(14) = 87.92

Answer:

990 cm²

Step-by-step explanation:

Given ratio of radii = a : b , then

ratio of areas = a² : b²

Here

ratio of radii = 50 : 30 = 5 : 3 , then

ratio of areas = 5² : 3² = 25 : 9

let x be the area of sector DEF , then using proportion

[tex]\frac{25}{2750}[/tex] = [tex]\frac{9}{x}[/tex] ← [tex]\frac{ratio}{area}[/tex]

cross- multiply

25x = 24750 ( divide both sides by 25 )

x = 990

Area of sector DEF = 990 cm²

Answer:

13.73 sq mm

Step-by-step explanation:

Area of Square - Area of Circle = Area of Shaded Region

if radius of circle is 4 then diameter is 8

the diameter is the same as the length of each side of the square

so area of square = 8² or 64

Area of Circle = 16π

64 - 16π ≈ 13.73

Answer:

[tex]x=2.\ y=1[/tex]

Step-by-step explanation:

[tex]We\ are\ given\ the\ following\ pair\ of\ equations:\\5x+7y=17\\7x+5y=19\\Now,\\As\ the\ co-efficients\ of\ none\ of\ the\ algebraic\ terms\ match,\\We\ can\ take\ the\ LCM\ of\ their\ co-efficients;\\As\ the\ co-efficients\ of\ the\ x-terms\ are\ 5,7\ respectively;\\Their\ LCM\ is\ 35.[/tex]

[tex]Hence,\\7(5x+7y)=7(17)\\-5(7x+5y)=-5(19)\\Hence,\\35x+49y=119\\-35x-25y=-95\\Hence,\\Adding\ the\ two\ equations\ we\ have:\\(35x+49y)+(-35x-25y)=(119)+(-95)\\(35x-35x)+(49y-25y)=119-95\\24y=24\\y=\frac{24}{24}=1[/tex]

[tex]Now,\\Lets\ consider\ the\ First\ Equation:\\5x+7y=17\\Substituting\ y=1,\\5x+7*1=17\\5x+7=17\\5x=17-7\\5x=10\\x=\frac{10}{5}=2\\\\Together,\\x=2.\ y=1[/tex]

Answer:

G and E

Step-by-step explanation:

Answer:

[tex]4 \\ \: is \: your \: answer \: mate[/tex]

enjoy your day

#Captainpower|~

Answer and Step-by-step explanation:

The second option (5d = 55)

This works because Arianna wants to divide the amount of dominos to her 5 friends. We do this by dividing 55 by 5.

d will then equal 11 (d = 11).

#teamtrees #WAP (Water And Plant)

Answer:

need more context

Step-by-step explanation:

Trapezoid area formula:

A=(base¹+base²/2)×height

Answer:

A. 31

Step-by-step explanation:

26 + 29 + 31 + 33 + 36 = 155

Average = 155/5 = 31

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

Explanation:

Place point F on line AB such that it is to the left of point A. In other words, point A is between points F and B.

Angle CAB is 105 degrees, so this makes angle CAF to be 75 degrees. This is because 105+75 = 180. The two angles are a linear pair.

Angle CAF is the angle formed between the tangent line AB and the chord segment AC.

Due to the tangent-chord theorem, inscribed angle CEA is also 75 degrees. Note how this inscribed angle subtends the arc cut off by the chord.

The inscribed angle theorem says we can double that inscribed angle to get 2*75 = 150, which is the measure of minor arc AC.

Arc CEA is therefore 360-(minor arc AC) = 360-150 = 210 degrees

Answer:

D. 12.0    i believe

Step-by-step explanation:

Slant height of a cone:

s = √(r2 + h2)

Answer:

r, a, t, i, o

Step-by-step explanation:

Looking back at the question before this, Among these points, circle the points where x<y (the first coordinate, x, is smaller than the second coordinate, y.) the points were a, t, o, i, r. Those are the circled numbers.

Looking at this problem now, we will count those letters up from the y axis, in an increasing order. (also it spells out ratio)

Answer:

a) When x = 2, y = 0

and when x = 3, y = 4

b) curve C

c) 2 and -1

Step-by-step explanation:

Answer:

12

Step-by-step explanation:

64 teebags divided by 16 teebags is 4 containers and 3 suger cups is 12