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3 years ago

Which of the following statements are correct select all that apply

Mathematics

2 answers:

Anastaziya [24]3 years ago

6 0

Answer:

231

Step-by-step explanation:

Dmitrij [34]3 years ago

3 0

The Correct statements are

B.⇒The circumcenter of triangle is the point where perpendicular bisector of sides meet.

Because three sides of triangle acts as a chord of the circle,and perpendicular bisector of chords intersects at the center of the circle.

C:⇒ Give any three non collinear points , there exist only one circle that passes through all the three points.

Join these points you will get two line segment .Draw perpendicular bisector of these segments.The point where these perpendicular bisectors meet is center of the circle.

E:⇒ The incenter of triangle is the point where internal bisector of angles meet.

Internal bisector of angle divide angle into two equal parts.The three line segements which is bisector of three angles meet at a point called Incenter of triangle.

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Dmitri wants to cover the top and sides of this box with glass tiles that are 1 cm square. How many tiles will he need? Dmitri w

marta [7]

The number of tiles needed to cover the surface area of the box excluding the bottom is: 1,046 tiles.

<h3>What is the Surface Area of a Box?</h3>

The surface area of a box is the area surrounding all its faces. A box has 6 rectangular faces. Therefore, the total surface area of the box equals the sum of all 6 rectangular faces.

<h3>What is the Surface Area of a Box?</h3>

SA = 2(lw + lh + hw), where:

l = length
w = width
h = height of the box

The image attached below shows the box Dmitri wants to cover. Since the bottom of the box would be excluded, therefore:

The surface area to be covered = surface area of the box - area of the bottom rectangular face

The surface area to be covered = 2(lw + lh + hw) - (l)(w)

l = 26

w = 15

h = 8

Substitute

The surface area to be covered = 2(l×w + lh + hw) - (l)(w) = 2·(15·26+8·26+8·15) - (26)(15) =

The surface area to be covered = 1436 - 390 = 1,046 cm

Area of one tile = 1 cm square

Number of tiles needed = 1,046/1

Number of tiles needed = 1,046 tiles.

Learn more about Surface Area of a Box on:

brainly.com/question/26161002

#SPJ1

7 0

2 years ago

This need to be correct plzzzzzzzzzzzz I got this answer wrong so send the new one

Novosadov [1.4K]

Answer:

$215,892.50

Step-by-step explanation:

This is a problem of compound interest.

In compound interest Amount A for principal p charged at interest r% per annum is given by

A = p(1+r/100)^n

where n is the time period in years.

_____________________________

given

p = $100,000

r = 8%

t = 10 years

A= 100,000( 1+ 8/100)^10

A= 100,000( 1.08)^10

A = $215,892.50

So , you need to pay $215,892.50 in total to debt cleared of debt.

4 0

3 years ago

Pleaseeeeeeee help me

Juli2301 [7.4K]

Answer:

The answer is "The discriminant is positive"

Step-by-step explanation:

When the discriminant is positive there is two real solutions.

When the discriminant is equal to 0, there is one real solution.

When the discriminant is negative, there is no real number solutions.

8 0

3 years ago

A 180 ft long board is cut into 3 pieces. The second piece of

blagie [28]

Answer:

20 feet

Step-by-step explanation:

1st piece = x

2nd piece = 2x

3rd piece = 6x

x+2x+6x=180

9x=180

x=20

so the first piece is 20 feet, the second is 40, and the third is 120.

6 0

3 years ago

Read 2 more answers

Given that a = -1, b=2 and c= -3 ,find the value of a(b2+c2)

KiRa [710]

Answer:

a( $b^{2}$ + $c^{2}$ ) = = -13

Step-by-step explanation:

Given that a = -1, b=2 and c= -3

find the value of a( $b^{2}$ + $c^{2}$ )

Just substitute the values given for each variable

a( $b^{2}$ + $c^{2}$ ) = (-1)( $2^{2}$ + $(-3)^{2}$ ) ; do the exponents first

a( $b^{2}$ + $c^{2}$ ) = (-1)(4+9)=(-1)(13) ; now add inside the parenthesis;

a( $b^{2}$ + $c^{2}$ ) = -13 ; and multiply by -1

7 0

3 years ago