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3 years ago

I just need question 2, please help

Mathematics

2 answers:

Musya8 [376]3 years ago

6 0

There will be 13 sides in total, this answer was already on Brainly don’t waste ur points!

hoa [83]3 years ago

4 0

Answer: 13 sides

Explanation:

Sum of interior angles S=(n−2)×180∘, where n is the number of sides of the polygon. Given S=1980∘

⇒1980=(n−2)×180
⇒n−2=1980/180=11
⇒n=11+2=13
Hence, the polygon has 13 sides.

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What are the roots of the equation

ValentinkaMS [17]

To what? There is no context

7 0

4 years ago

Read 2 more answers

On her way home from school, Palama walked 5 blocks west to the grocery store, 2 blocks south to visit her aunt, then 5 blocks n

valentina_108 [34]

Answer:

the home is

5.83 blocks 31° North of west of the school

Step-by-step explanation:

Resolving the displacement to vertical and horizontal axis

Let north and south represent positive and negative vertical axis, also east and west represent positive and negative horizontal axis;

Vertical axis; , 2 blocks south to visit her aunt, then 5 blocks north to go home

Ry = -2 + 5

Ry = +3

Horizontal axis; 5 blocks west to the grocery store

Rx = -5

Resultant distance = R = √(Rx^2 + Ry^2)

R =√(-5^2 + 3^2)

R = √34

R = 5.83 blocks

For the direction;

∅ = arctan(Ry/Rx) = arctan(3/5)

∅ = 31°

Therefore, the home is

5.83 blocks 31° North of west of the school.

6 0

3 years ago

Help please!

larisa86 [58]

Answer:

The point at (-7, -5) = a

The point at (9, 3) = b

The point at (-3, 7) = c

The "a" point of the triangle is 12 units away from the center point.

So, 12 x 1/4

=> 12/4

=> 3

So, the "a" point of the dilated figure is 3 units left from the center.

=> So, the dilated "a" point is at (2, -5)

The "b" point is 8/4 (= rise/run = y-axis / x-axis) from the center point.

=> 8/4 = 2

So, the "b" point of the dilated figure is 1 unit right and 2 units up from the center point.

=> So, the dilated "b" point is at (6, -3)

The "c" point is 12/8 units away from the center point.

=> 12/8 x 1/4

=> 3/2

So, the "c" point of the dilated figure is 3 units up and 2 units left from the center point.

=> So, the dilated "c" point is at (3, -2)

7 0

3 years ago

Find the equation (in terms of x) of the line through the points (-2,4) and (2,0)<br> y =

solong [7]

Answer:

y = - x + 2

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = $\frac{y_{2}-y_{1} }{x_{2}-x_{1} }$

with (x₁, y₁ ) = (- 2, 4 ) and (x₂, y₂ ) = (2, 0 )

m = $\frac{0-4}{2-(-2)}$ = $\frac{-4}{2+2}$ = $\frac{-4}{4}$ = - 1 , then

y = - x + c ← is the partial equation

To find c substitute either of the 2 points into the partial equation

Using (2, 0 )

0 = - 2 + c ⇒ c = 0 + 2 = 2

y = - x + 2 ← equation of line

7 0

3 years ago

Read 2 more answers

29. Let X = {x | x is a whole number less than 10}, Y = {x|x is an even number} (1 point)

torisob [31]

Answer:

The abs wer to your question is: A

Step-by-step explanation:

A.{0, 2, 4, 6, 8} This answer is correct because we are looking for even numbers less than 10 and this group has both characteristics.

B.{1, 3, 5, 7, 9} This option is incorrect because it displays odd numbers and we are looking for even numbers.

C.{1, 2, 3, 4, 5, 6, 7, 8, 9, } This option is incorrect because we only need even numbers and this group displays both even and odd numbers.

D.{0, 1, 2, 3, 4, 5, 6, 7, 8, 9} This option is al so incorrect, the only difference with C in the zero.

3 0

3 years ago