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3 years ago

The number of parking tickets issued in a certain city on

Mathematics

1 answer:

Katyanochek1 [597]3 years ago

8 0

I am going to say it is probably ....B....

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A square has a diagonal length of 10 ft. Draw a diagram and determine the perimeter of the square.

denpristay [2]

The perimeter of the square is: $20\sqrt2$ ft

Step-by-step explanation:

The picture is attached with the answer.

the diagonal of a square divides it into two right angled-triangles.

We can use one of the triangle to find the length of side as the diagonal will be the hypotenuse of the triangle

Let a be the side of the square, then according to Pythagoras theorem

$d^2=a^2+a^2\\(10)^2 = 2a^2\\2a^2=100$

Dividing both sides by 2

$\frac{2a^2}{2}=\frac{100}{2}\\a^2=50$

Taking Square root on both sides

$\sqrt{a^2}=\sqrt{50}\\a=\sqrt{25*2}\\a=\sqrt{5^2 * 2}\\a=5\sqrt{2}\ ft$

Now,

$P = 4a\\P = 4 * 5\sqrt{2}\\=20\sqrt{2}\ ft$

Hence,

The perimeter of the square is: $20\sqrt2$ ft

Keywords: Perimeter, Pythagoras Theorem

Learn more about Square at:

#learnwithBrainly

5 0

3 years ago

Briana bought a lot of snacks from Dollar General last night for $193.84, not including tax. If the tax rate was 9%, how much wa

jeyben [28]

I believe the total is $211.27.

After doing multiple searches on the internet, I believe that tax rate is a percentage of the product that is added to the total cost.

9 percent of 193.84 is 17.4456, which rounds up to 17.44, and 17.44 added to 193.84 is 211.27.

Please, if something isn't correct here, don't refrain to tell me, and I will correct my mistake. Thank you.

6 0

3 years ago

Read 2 more answers

On a piece of paper, use a protractor and a ruler to construct triangle ABCABC with ABAB = 8 cm, m∠Am∠A = 90°90° , and m∠Bm∠B =

Lyrx [107]

∠B = 45°
∠A = 90°
so
∠C = 45° = ∠B
and
AB = AC = 8
answer
AC = 8 cm

6 0

3 years ago

Determine the area of the composite figure.

MaRussiya [10]

Answer:

$110\ in^2$

Step-by-step explanation:

$1)\ A_1 = b * h_1 = 10 * 8 = 80\ in^2$

$2)\ A_2 = \frac{b*h_2}{2} = \frac{10*(14-8)}{2} = \frac{10*6}{2} = \frac{60}{2} = 30\ in^2$

$3)\ A = A_1 + A_2 = 80 + 30\ in^2 = 110\ in^2$

6 0

2 years ago

Which of the following has six faces?

nadezda [96]

Answer:

Cube

Step-by-step explanation:

Im not sure what the option choices are but a cube has 6 faces. :)

7 0

3 years ago

Read 2 more answers