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White raven [17]
3 years ago
9

Find the unknown measures ​

Mathematics
1 answer:
Oliga [24]3 years ago
7 0

Answer:

60.

Step-by-step explanation:

because hg = gj = hj , also all three angles are the same and since a triangle has 180' , 180/3 is 60

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Jocelyn estimates that a piece of wood measures 5.5 cm. If it actually measures 5.62 cm, what is the percent error of Jocelyn’s
laiz [17]

Answer:

A

Step-by-step explanation:

|((experimental - theoretical) / theoretical)| x 100

5.5 - 5.62 / 5.62 = -.0213

|-.0213| = .0213

.0213 x 100 = 2.13


8 0
3 years ago
How to solve this elimination
aleksandrvk [35]
Firstly you have to reduce the 4 variables to a double system of equation with only 2 variables.

Let's say, first we have to eliminate Z:
Take 1st & 3rd equation & multiply each term of the 1st by (- 1). One done you add up the 1st & the 3rd & you will get:
5W - 4x + 2y = - 18
Follow the same methodology to find another equation without z. Once done you will have a system of 2 equation with 2 variable easy to solve,

At the end you will find:
w = -3
x = -2
y = -1
z = 3


4 0
2 years ago
Mr. Whittaker’s science class uses tide gauges to measure annual variations in water levels at different parts of a river, and t
strojnjashka [21]

Answer:

-1.05 mm/year

2.48 years

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
The Neolithic Revolution
Amanda [17]

The Neolithic Revolution allowed people to live in permanent settlements.

<u>Explanation:</u>

The Neolithic Revolution is the phase of transition in which many of the human cultures in the world shifted their lifestyle to permanent settlement and agriculture from hunting and gathering.

This era is also named as First Agricultural Revolution or Neolithic Demographic Transition. The agricultural practices led the cultures to develop the knowledge of domestication of animals and they began to observe and experiment with the plants (to learn or know how they grow and develop).

Neolithic period is named as revolution because this period changed the way of life of most of the communities. This first occurred in so-called "Fertile Crescent" or Mesopotamia (modern Iraq).

6 0
3 years ago
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This one is hard can some body help me
natali 33 [55]
First option because 3 x 10^9 is 3,000,000,000
5 0
2 years ago
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