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sleet_krkn [62]
3 years ago
5

PLEASE PLEASE PLEASE PLEASE SHOW YOUR WORK

Mathematics
1 answer:
stellarik [79]3 years ago
6 0

Answer:

9.11x10^-28

Step-by-step explanation:

1.67x10^-24 would be .000000000000000000000000167 and 9.11x10^-28 would be .0000000000000000000000000000911 and because it has more zeros in front of it, 9.11x10^-28 would be the smaller mass

I'm 99.99999999999999999% sure this is correct.

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Determine whether quadrilateral ABCD is a rhombus, a rectangle, a square, a parallelogram, or none. List all that apply. Explain
svlad2 [7]

Answer:

  • ABCD is a rhombus, and a parallelogram

==================================

<h3>Given </h3>

  • Points A(-6, - 1), B(4, - 6), C(2, 5), D(- 8, 10)

First, plot the points (see attached picture).

Then, connect all the points.

<h3>We see that:</h3>

  • Opposite sides are parallel,
  • Diagonals are perpendicular.

From our observation the figure is rhombus.

Let's confirm it with the following.

1) Find midpoints of diagonals and compare.

  • AC → x = (- 6 + 2)/2 = - 2, y = (- 1 + 5)/2 = 2
  • BD → x = (4 - 8)/2 = - 2, y = (- 6 + 10)/2 = 2

The midpoint of both diagonals is same (- 2, 2).

2) Find slopes of diagonals and check if their product is -1, this will confirm they are perpendicular.

  • m(AC) = (5 - (-1))/(2 - (-6)) = 6/8 = 3/4
  • m(BD) = (10 - (-6))/(-8 - 4) = - 16/12 = - 4/3

  • m(AC) × m(BD) = 3/4 * (- 4/3) = - 1

<u>Confirmed.</u>

So this is a rhombus and also a parallelogram but <u>not</u> rectangle or square, since opposite angles are not right angles.

5 0
1 year ago
Find the value of x for both.
Ronch [10]
1) 180-(44+45)=91
2) 180-(53+37)=180-90=90

6 0
3 years ago
Mrs. Davis bought 6 pounds of grades for $18. At this rate, how much would 72 ounces of grapes have cost?
saveliy_v [14]
This the problem we are looking at: 6 pounds/18 = 72 ounces /?
To solve this, we have to make the unit of measurement the same. There are 16 ounces in 1 pound. So, there are 72 ounces in 4.5. To find that you just do 72 divided by 16. This is the new problem we are looking at: 6 pounds/18 = 4.5 pounds/?
To find ?, you must divided 6 divided by 4.5 to find the difference between the two to keep the same rate. That equals 1.33333333. 
What is done to the numerator, you must do to the denominator to keep the same rate so now you divide 18 divided by 1.33333333 which equals 13.5

So for 72 ounces (4.5 pounds) it will cost $13.50

I hope this helps:)
4 0
3 years ago
What is the range of the relation below?<br> {(-4,1), (-2,0), (8, -1)}
anyanavicka [17]

Answer:

Range: {-1, 0, 1}

General Formulas and Concepts:

<u>Math</u>

  • Number Line

<u>Algebra I</u>

  • Range is the set of y-values that are outputted by function f(x)
  • {Set Builder Notation}

Step-by-step explanation:

<u>Step 1: Define</u>

[Relation] {(-4, 1), (-2, 0), (8, -1)}

<u>Step 2: Identify</u>

According to the relation, our y-values are 1, 0, and -1. These values would encompass our range.

5 0
3 years ago
-1/2(7z+4) + 1/5(5z - 15)
saw5 [17]

Step-by-step explanation:

-3.5z - 2 + 1z - 3

Solving like terms

-2.5z - 5

8 0
3 years ago
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