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3 years ago

If ∠2 and ∠3 are supplementary angles, then ∠2 and ∠3 form a linear pair true or false

Mathematics

1 answer:

Bezzdna [24]3 years ago

7 0

True. Two angles of a linear pair will always be supplementary

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Question attached! Please explain how you got them :)

zhannawk [14.2K]

A) Mean - add numbers of animals, and then divide by the number of students.

numbers of animals =1*20+2*11+3*18+4*10+5*3 +6*18 = 259
number of students = 20+20+11+18+10+3+18 = 100
mean=numbers of animals /number of students = 259 / 100=2.59

b) median
You can write 20 zeroes, 20 ones, 11 twos and so on. and the remove from left and right equal amount of number, when you get in the middle,it is going to be median
20 "0", 20 "1", 11 "2", 18 "3", 10 "4", 5 "3", 18 "6"
 51 place 51 place
From the left 20+20+11=51 places
18+5+10+18=51 places
We can see that no single middle number. In the middle is going to be two numbers 2 and 3, and divide them by 2.
(2+3)/2=2.5 median

3) (127/151)*100%≈ 84.11%

8 0

2 years ago

Lisa went to the hardware store and bought 12 pieces rope. Each rope was 34 of a meter long. If the rope cost $3.50 a meter, how

andrew11 [14]

One rope = 34m
12 ropes = 34 x 12 = 408m
Total cost = $3.50 x 408 = $1428

7 0

2 years ago

Given the linear equation 6x-2=2x+12, find x HELPPP PLEASEEE ASAP!!! Processss!

EleoNora [17]

Answer:

x=3.5

Step-by-step explanation:

add 2 to each side to cancel out the -2

6x=2x+14

subtract 2x from each side

4x=14

divide by 4

x=3.5

4 0

2 years ago

In a park,a sidewalk is built around the edge of a circular pond.The sidewalk is 7 feet wide,and the pond measure 15 feet across

densk [106]

Answer:

91.14 feet

Step-by-step explanation:

Given:

In a park,a sidewalk is built around the edge of a circular pond.

The sidewalk is 7 feet wide, and the pond measure 15 feet across.

Question asked:

What amount of railing would be needed to go completely around the outer edge of the sidewalk?

Solution:

From distance from one edge of the pond to the another = 15 feet

That means diameter of the pond = 15 feet

And width of the sidewalk = 7 feet all around

combined diameter = 15 + 7 + 7 = 29 feet

Radius,r = $\frac{Diameter}{2} =\frac{29}{2} ==14.5\ feet$

That means distance between outer edge of the sidewalk to the center of the circular pond = 14.5 feet

Now, we will have to find circumference of outer circular edge of sidewalk:

$Circumference\ of\ circle=2\pi r$

$=2\times\frac{22}{7} \times14.5\\ \\ =\frac{638}{7} \\ \\ =91.14\ feet$

Therefore, 91.14 feet would be needed to go around the outer edge of the sidewalk.

7 0

2 years ago

3x+5=12-7x solve? Help

horsena [70]

Answer:

3x + 5 = 12 - 7x

⇒ 3x = 12 - 5 - 7x

⇒ 3x = 7 - 7x

⇒ 3x + 7x = 7

⇒ 10x = 7

⇒ x= 7 ÷ 10

⇒ x = 0.7

8 0

2 years ago