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2 years ago

Draw or write to show that the number 18 is even

Mathematics

2 answers:

AveGali [126]2 years ago

8 0

Even numbers are always divisible by 2. 18 is divisible by 2, and is thus an even number.

Katyanochek1 [597]2 years ago

6 0

18 is even

You can divide 18 by 2

18/2 = 9

Anything that can be divided by two that equal a whole number is even.

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Helpppppp pleaseeee me helpppp

Readme [11.4K]

Answer:

$10 + $10 + $1 + 25¢ + 5¢

$20 + $1 + 25¢ + 5¢

Step-by-step explanation:

Each one must pay $21.30

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3 years ago

A cylinder and cone have the same height and radius. The height of each is 5 cm, and the radius is 2 cm. Calculate the volume of

never [62]

Answer:

The volume of a cylinder is 62.8 cm and the volume of a cone is 20.9 cm³ .

Step-by-step explanation:

Formula

$Volume\ of\ a\ cylinder = \pi r^{2} h$

$Volume\ of\ a\ cone = \pi r^{2} \frac{h}{3}$

Where r is the radius and h is the height .

As given

A cylinder and cone have the same height and radius. The height of each is 5 cm, and the radius is 2 cm.

$\pi = 3.14$

Thus

$Volume\ of\ a\ cylinder =3.14\times 5\times 2\times 2$

= 62.8 cm³

Thus the volume of a cylinder is 62.8 cm³ .

$Volume\ of\ a\ cone = 3.14\times 2\times 2\times frac{5}{3}$

$Volume\ of\ a\ cone =\frac{5\times 3.14\times 2\times 2}{3}$

$Volume\ of\ a\ cone =\frac{62.8}{3}$

= 20.9 (Approx) cm³

Thus the volume of a cone is 20.9 cm³ .

Therefore the volume of a cylinder is 62.8 cm and the volume of a cone is 20.9 cm³ .

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3 years ago

Solve the system by substitution.<br> 10x + 5y = -50<br> y = -x

Pie

Answer:

(1,-12)

Step-by-step explanation:

-10+5y=-50

5y=-60

y=-12

10x-60=-50

10x=10

x=1

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2 years ago

Solve for x

Ulleksa [173]

Answer:

C. x = 1

Step-by-step explanation:

To solve this problem the best way is to use the quadratic formula. First make everything equal to 0 by adding 3 to both sides.

3x^2 - 6x + 3 = 0

The quadratic formula is: $\frac{-b\pm\sqrt{b^2-4ac} }{2a}$ . Substitute the values of a, b, and c into the formula. Keep in mind:

a = 3
b = -6
c = 3

$\frac{-(-6)\pm\sqrt{(-6)^2-4(3)(3)} }{2(3)} \rightarrow \frac{6\pm\sqrt{36-4(9)} }{6} \rightarrow \frac{6\pm\sqrt{0} }{6} \rightarrow \frac{1\pm0}{1} \rightarrow 1$

Therefore, x = 1.

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3 years ago

Aubree wanted to see if there is a connection between the time a given exam takes place and the average score of this exam. She

Andrews [41]

Answer:

you can divide the answers by the time duration of the exam and get your answer

Step-by-step explanation:

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2 years ago

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