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marshall27 [118]
3 years ago
9

A person who studies and researches events, peoples, ideas, and issues in the past is known as.

SAT
1 answer:
Lemur [1.5K]3 years ago
4 0

Answer:

Archaeologist

Explanation:

They would be known as an archaeologist

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A car slows down from a velocity of 25 m/s to 5. 0 m/s in 8. 0 seconds. What is the acceleration of the car?
lana [24]

Answer:

a= v-u/t

= 25-5/8

= 20/8

=2.5m/s

5 0
2 years ago
A child who develops to be dependent and immature most likely had parents who followed which types of
sweet [91]
Authoritarian
Explanation: An authoritarian ruler is basically a dictator, not allowing any freedom of choice. Authoritative provides some parental control, but probably with limits. Permissive is lenient.
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3 years ago
At an ocean depth of 20 meters, a buoy bobs up and then down 2 meters from the ocean's depth. Four seconds pass from the time th
stiv31 [10]

The first and second coordinate points of the sine graph are;

(0, 20) and (2, 22)

<h3>Sine Graph expression</h3>

The general formula we will use to plot the graph is;

y = [Asin (2πx/t)] + ∅      (Note that sin is in radians)

where;

A is amplitude

t is period

∅ is phase shift

We are told that the buoy bobs up and then down 2 meters from the ocean's depth. This means that;

Amplitude; A = 2

Now, Four seconds pass from the time the buoy is at its highest point to when it is at its lowest point. Thus;

Period = 2 * 4 = 8 seconds

Assume at x = 0, the buoy is at normal ocean depth. Thus;

Phase shift; ∅ = 20

Thus, we have;

y = [2sin((2πx/8)] + 20  

At x = 0, we have;

y = [2sin((2π*0/8)] + 20  

y = 0 + 20

y = 20

Thus, first point is; (0, 20)

Since the second point must be a maximum or minimum value on the graph closest to the first point, then we put 2 for x to get the coordinate of the second point;

y = [2sin((2π*2/8)] + 20  

y = [2sin((2π*2/8)] + 20  

y = [2sin(π/2)] + 20  

In radians, sin(π/2) = 1. Thus;

y = (2 * 1) + 20

y = 22

Second point is (2, 22)

Using the first and second point coordinates, we will use sine tool to graph the function as attached below.

Read more about sine graph at; brainly.com/question/18055768

3 0
2 years ago
When dana found out her proposal was rejected, she stormed into her boss's office and yelled at him. Dana was experiencing emoti
Lisa [10]

Answer:

Emotional hijacking occurs when emotions take over the rational...

Explanation:

7 0
2 years ago
If we wanted to explore the idea that mother's smoking might explain the variation in birth weight, what visualization might be
Mila [183]

Answer:

If a mother is smoking and there are significant birth weights, a bar graph will be most effective. A bar graph can show how many children have similar weights, and you can tell which weights are most common.

Hope this helped.

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