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4 years ago

The irregular figure on the left has been decomposed into the figures on the right.

Mathematics

1 answer:

shusha [124]4 years ago

7 0

Answer:

The density of the material must be at least 1.5 g/cm³.

Step-by-step explanation:

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Mary-Ann has $28, which is 2 1/3 as much money as Lona has. How much money dose Lona have?

pav-90 [236]

Answer:

12 dollars

Step-by-step explanation:

<h3>Lona should have 12 dollars because it says that it is <em>2 1/3</em> as much as Mary-Anns amount. You would divide 28➗2 1/3=12</h3><h3 /><h3>hope this helps</h3>

6 0

3 years ago

Write a word phrase for each algebraic expression? <br> 2(18+t)

Ahat [919]

Answer:

Step-by-step explanation:

I believe the word phrase would look like this:

2 times the sum of 18 and t.

5 0

3 years ago

Read 2 more answers

Solve -3x=2x^2-4 using quadratic formula

frozen [14]

Answer:

$x=-2.35078, 0.850781$

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

<u>Algebra I</u>

Standard Form: ax² + bx + c = 0
Quadratic Formula: $x=\frac{-b\pm\sqrt{b^2-4ac} }{2a}$

Step-by-step explanation:

<u>Step 1: Define equation</u>

-3x = 2x² - 4

<u>Step 2: Rewrite into Standard Form</u>

0 = 2x² + 3x - 4

<u>Step 3: Define variables</u>

a = 2

b = 3

c = -4

Substitute: $x=\frac{-3\pm\sqrt{3^2-4(2)(-4)} }{2(2)}$
Evaluate: $x=\frac{-3\pm\sqrt{9-4(2)(-4)} }{2(2)}$
Multiply: $x=\frac{-3\pm\sqrt{9+32} }{4}$
Add: $x=\frac{-3\pm\sqrt{41} }{4}$
Evaluate: $x=\frac{-3\pm6.40312}{4}$
Evaluate: $x=-2.35078, 0.850781$

And we have our final answer!

6 0

3 years ago

The height, h, of a falling object t seconds after it is dropped from a platform 300 feet above the ground is modeled by the fun

spayn [35]

C is the correct answer

7 0

3 years ago

What is 8/10 simplified and can you explain how you know ? tysm! :)

seropon [69]

8/10 simplified is 4/5 becase if you divide both numbers by 2 that is the simpliest form

3 0

3 years ago

Read 2 more answers