All categories

3 years ago

What is the internal angle sum of a quadrilateral? (Hint: A quadirlateral has 4 sides.) OA) 90 OB) 180 OC) 360 OD 540

Mathematics

2 answers:

shtirl [24]3 years ago

5 0

The internal angle sum of a quadrilateral is :

C. 360°

The sum of internal angles of a polygon is determined by a formula :

$\longmapsto (n - 2) × 180°$

where n represents number of sides.

In a quadrilateral there are four sides,

So, plugging 4 in the formula :

$(4 - 2) \times 180°$

$2 \times 180°$

$360°$

_____________________________

$\mathrm{ \#TeeNForeveR}$

andrezito [222]3 years ago

3 0

Answer:

C. 360

Step-by-step explanation:

You might be interested in

If you can do all three questions I’ll mark you brainlest!! Thanks <3

Verdich [7]

Answer:

1. Rate needed 9/6; Unit rate is 1.5/1; 1.5 cans of white paint are needed for each can of blue.

2. rate needed = 12/6; unit rate = 2/1; Need 2 cups of water for every scoop of fruit mix.

3. 70 minutes

Step-by-step explanation:

1. Set up a ratio

3white/2blue = xwhite/6blue

3/2 = x/6

cross multiply 2x = 18; x = 9

rate needed = 9/6

Unit rate is 1.5/1 (divide 3 by 2 or 9 by 6 to get unit rate_

2. 3/1.5 = x/6

1.5x = 18; x = 12

rate needed = 12/6

unit rate = 2/1

3. Set up a ratio.

3.5/.25 ( 1/4=.25)

3.5/.25 = x/5

.25x = 3.5(5)

.25x = 17.5

x = 70 minutes

5 0

2 years ago

Read 2 more answers

If you are reading this please help!!!!

Soloha48 [4]

Given:

$1. -3 x^{2}\left(4 x^{3}-7\right)\\$2. $(6 x-5)(2 x+3)$\\3. $(3 x-1)\left(x^{2}+5 x-2\right)$$

To find:

The product of the polynomials.

Solution:

1. $-3 x^{2}\left(4 x^{3}-7\right)$ $=-3 x^{2}(4 x^{3}) -3 x^{2}(-7)$

Multiply the numerical coefficient and add the powers of x.

$=-12 x^{5}+21 x^{2}$

2. $(6 x-5)(2 x+3)=6 x(2 x+3)-5(2x+3)$

Multiply each term of first polynomial with each term of 2nd polynomial.

Multiply the numerical coefficient and add the powers of x.

$=12 x^2+18x-10 x-15$

$=12 x^2+8x-15$

3. $(3 x-1)\left(x^{2}+5 x-2\right)=3 x(x^{2}+5 x-2)-1(x^{2}+5 x-2)$

Multiply each term of first polynomial with each term of 2nd polynomial.

Multiply the numerical coefficient and add the powers of x.

$=3x^{3}+15 x^2-6x-x^{2}-5 x+2$

Add or subtract like terms together.

$=3x^{3}+14 x^2-11x+2$

The answer for multiplying polynomials:

$1. -12 x^{5}+21 x^{2}$

$2. \ 12 x^2+8x-15$

$3. \ 3x^{3}+14 x^2-11x+2$

3 0

3 years ago

What is the y-coordinate of the solution for the system of equations?

enot [183]

Y= 12 - x

27 + 3( 12 - x ) = 2x

7 0

3 years ago

Read 2 more answers

I need a lot of help plz helps plz

zavuch27 [327]

You need to add 5d with 5d then add the d to it for it to get the length and the width

7 0

3 years ago

What is the volume of a rectangular prism whose dimensions are 2 feet, 2.5 feet and 4 feet?

IrinaK [193]

Answer:

It’s B, 20 cubic feet

Step-by-step explanation:

Volume is length x width x height so
2 x 2.5 x 4 is 20

4 0

3 years ago