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2 years ago

The universal set is the set that contains no elements. True False

Mathematics

1 answer:

scoray [572]2 years ago

6 0

Step-by-step explanation:

False.

it is the set of everything in the observed system.

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Select the number that would make this statement true: 361.2 ÷ ________ = 036.12 (3 points)

S_A_V [24]

Answer: c

Step-by-step explanation:

You can take the blank as x

so 361.2 / x = 36.12

multiply by x

361.2 = 36.12x

divide

x = 10

thank me and mark me as brainlies

7 0

3 years ago

Read 2 more answers

Bill went to the movies with some of his friends. tickets cost $8.50 each . they spent $18.00 total for food . their total was $

Marina86 [1]

18.00 + 8.50 + 8.50 + 8.50 + 8.50 = 52.00

So that's 4 Friends

4 0

3 years ago

How can 1% of 300 be used to determine 64% of 300? Enter your answers in the boxes to correctly complete the statement. 1% of 30

Ratling [72]

Answer:

1% of 300 is 3 so if you multiply that 3 by 64, you get 192 which is also 64% of 300

Step-by-step explanation:

.01 x 300 = 3

3 x 64 = 192

.64 x 300 = 192

4 0

2 years ago

Read 2 more answers

If w = 12 units, x = 7 units, and y = 8 units, what is the surface area of the figure? Figure is composed of a right square pyra

bearhunter [10]

Answer:

720 sq units.

Step-by-step explanation:

Length and width of square prism, w = 12 units

Height of square prism, x = 7 units

Height of square pyramid, y = 8 units

Please have a look at the attached image.

Here 2 Surfaces will not be exposed which are base of the square pyramid and the top of the square prism i.e. 2 square surfaces will not be exposed.

Here, surface area of the composite figure will be:

<em>Surface Area of Composite Figure = Lateral surface area of Square Pyramid + Surface Area of 5 surfaces of the square prism</em>

For finding the lateral surface area of pyramid, we need to find the slant height of the pyramid.

Let slant height be $l$ units.

Using pythagoras theorem, we can find out the value of $l$ .

As per theorem:

$Hypotenuse^{2} = Base^{2} + Height^{2}\\$

$\Rightarrow l^{2} = (\dfrac{w}{2})^{2} + y^{2}\\\Rightarrow l^{2} = (\dfrac{12}{2})^{2} + 8^{2}\\\Rightarrow l^{2} = {6}^{2} + 8^{2}\\\Rightarrow l^{2} = 36+64 = 100\\\Rightarrow l = 10\ units$

Lateral surface area of square prism = 4 $\times$ Area of triangular surface

$\Rightarrow 4 \times \dfrac{1}{2}\times Base \times Slant\ Height\\\Rightarrow 4 \times \dfrac{1}{2} \times 10 \times 12\\\Rightarrow 240\ sq\ units$

Surface Area of 5 surfaces of the square prism =

$4 \times x \times w + w^2\\\Rightarrow 4 \times 12 \times 7 + 12^2\\\Rightarrow 336 +144\\\Rightarrow 480\ sq\ units$

So, total surface area of composite figure:

240 + 480 = 720 sq units.

7 0

3 years ago

Given the circle below with secants BCD and FED, find the length of BC.

Stells [14]

It is 7.3 please give brainliest

8 0

3 years ago