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mel-nik [20]
3 years ago
13

The table below shows the temperatures, in degrees Celsius, for a week in Alaska.

Mathematics
1 answer:
Anika [276]3 years ago
8 0

Answer:

2.5°C

Step-by-step explanation:

You can find the average by adding together all of the numbers and dividing the sum by the amount of numbers. In this case the numbers are 10.4, 0, -2, -2.1, and 6.2. When you add these numbers together, you get 12.5. Since there are 5 numbers, you divide 12.5 by 5 and you get...

2.5°C

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What is (4×3)÷2+1+2×6
Olenka [21]

Answer:

(4×3)÷2+1+2×6

=12÷2+1+2×6

=6+1+2×6

=6+1+12

=19

is the answer

3 0
3 years ago
Read 2 more answers
Find the perimeter of the triangle with coordinates A(5,2), B(5,4), and C(1,1). Round to the nearest tenth.
faltersainse [42]

Answer:

11.1 units

Step-by-step explanation:

We solve for this using the formula when using coordinates (x1 , y1) and (x2, y2)

= √(x2 - x1)² + (y2 - y1)²

A(5,2), B(5,4), and C(1,1).

For AB = √(x2 - x1)² + (y2 - y1)²

= A(5,2), B(5,4)

= √(5 - 5)² +(4 - 2)²

= √ 0² + 2²

= √4

= 2 units

For BC = √(x2 - x1)² + (y2 - y1)²

= B(5,4), C(1,1)

= √(1 - 5)² +(1 - 4)²

= √ -4² + -3²

= √16 + 9

= √25

= 5 units

For AC = √(x2 - x1)² + (y2 - y1)²

A(5,2), C(1,1)

= √(1 - 5)² + (1 - 2)²

= √-4² + -1²

= √16 + 1

= √17

= 4.1231056256 units

The Formula for the Perimeter of Triangle = Side AB + Side BC + Side AC

= 2 units + 5 units + 4.1231056256 units

= 11.1231056256 units.

Approximately the Perimeter of a Triangle to the nearest tenth = 11.1units

4 0
3 years ago
A little boy mass 10kg is placed at a height of 2cm above the ground,what is the potential energy of the boy with reference to t
marin [14]
Potential gravitational energy:

mgh

10kg • 10m/s^2 • 0.02 =

2 Joules
3 0
3 years ago
K is the midpoint of JL JK=3x-1 and KL=2x+8 find JL
Masteriza [31]

Answer:

JL = 52

Step-by-step explanation:

It is given in the question that K is the midpoint of JL.

So, JK = KL ......... (1)

Now, given that, JK =3x - 1 and KL = 2x + 8  

Therefore, from equation (1), we can write  

3x - 1 = 2x + 8

⇒ x = 9

So, JK = 3x - 1 = 3(9) -1 = 26 and KL = 2x + 8 = 2(9) + 8 = 26

Hence, JL = JK + KL = 26 + 26 = 52. (Answer)

3 0
3 years ago
Sampson solves the inequality as shown below.
astraxan [27]

Answer:

subtract 3 from both sides

Step-by-step explanation:

7 0
3 years ago
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