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cupoosta [38]
3 years ago
13

Which primary source document would give you insight into how the Great Chicago Fire affected working-class families? A.) a lett

er B.) a newspaper account C.) an essay D.) an immigrant newspaper
Mathematics
2 answers:
Natali5045456 [20]3 years ago
7 0
The primary source document that would give you an insight or insights into how the Great Chicago Fire affected working-class families is through a letter. Primary sources are physical documents that were presented during the event or experience and gives you an overview of what happened.

The answer would be letter A.
Aleonysh [2.5K]3 years ago
7 0

A: A letter

This is your answer! Hope that helps!


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Describe the given set with a single equation or with a pair of equations. The plane through the point (7 comma 6 comma negative
devlian [24]

Answer:

(a) Along the xy-plane,

7x + 6y = 0

(b) Along the yz-plan,

2y - 3z = 0

(c) Along the xz-plane,

7x - 3z = 0

Step-by-step explanation:

To describe the given set.

Given the plane (7, 6, -3),

We have the equation as

7x + 6y - 3z = 0

(a) Along the xy-plane, z = 0, and we have

7x + 6y = 0

(b) Along the yz-plan, x = 0, and we have

6y - 3z = 0

Or

2y - 3z = 0

(c) Along the xz-plane, y = 0, and we have

7x - 3z = 0

8 0
3 years ago
Which expression is equivalent to the given expression?
marishachu [46]

Answer:

The third option.

Step-by-step explanation:

(\frac{4xy^3}{x^2})^2\\\\=(\frac{4y^3}{x})^2\\\\=\frac{16y^6}{x^2}

Hence the 3rd option.

4 0
2 years ago
If 0° ≤ θ ≤ 90° and cosθ = 11/15 , what is the value of sin (90° - θ)?
igor_vitrenko [27]
11/15=0.7333
cos^{-1}(0.7333) =42.83342
sin(90-47.166572) = 0.7333

first, find the numeric value for 11/15
second to find theta, simply do the <em>inverse</em> cos (which is cos^-1) of the first answer.
now you know theta, just do the sin of 90 - theta and that's it!

since you know whatr cos(theta) is, you just take the inverse cos of that number to get theta and 'reverse' cos, essentially. you are just solving for theta, by reversing the cos function with cos^-1
please mark as brainliest!
7 0
3 years ago
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Simplify the expression using the distributive property 2x (x- 9)​
Scrat [10]

Answer:

2x^2-18x

Step-by-step explanation:

4 0
3 years ago
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What would be the answer to this question?
sergejj [24]

Answer: the answer would be 66

Step-by-step explanation:

5 0
3 years ago
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