What are the rock name and map symbol used to

Geography

1 answer:

Hoochie [10]4 years ago

6 0

4, The grain size would be sand, and the rock name would be sand stone.

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The primary distinction between historic archaeologists and prehistoric archaeologists is that the former have access to

Inga [223]

The primary distinction between historic archeologist and prehistoric archeologist is that the former have access to written records.

Historic archeologist deals with the archeology if the recent past, with a short period of time. While the prehistoric archeologist deals with the time period prior to written records, it deals with a longer span of time.

3 0

3 years ago

What type of angle is it? <br>What is the measurement?

romanna [79]

Below I have included an image that has the measure of all of the angles on it.

We can find the measures of the angles here due to the laws about complimentary angles. A pair of complimentary angles can be formed when 2 lines are perpendicular, and when added together, will always equal 90. The pair are the angles that are not directly adjacent from each other. In this figure, "x" and "(4x-10)" are a pair. According to another law, opposite angles, or adjacent angles, will always be equal to each other. Using the logic above is how we can find the measure of all angles.

Since one angle has a box, we know the lines are perpendicular, and that the laws of complimentary angles apply. We can also use that to see that the angle diagonal from it is equal to 90.

To solve for the other measures, we need to add the 2 equations together and set them equal to 90 (because of that law we talked about before).

x+(4x-10)=90
5x-10=90
+10+10
5x=100
/5 /5
x=20

Now that we know x equals 20, we can substitute that value in and solve.

x=20

=(4x-10)
=(4*20-10)
=(80-10)
=70

We also know this is correct because 20 and 70 equal 90.