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2 years ago

Factor completely 9x^4y − 6x^3y^2 + 3x^2y^3.

Mathematics

1 answer:

IRINA_888 [86]2 years ago

7 0

The answer is A because if you factor out 3x^2y, you get 3x^2 - 2xy + y^2 and you cannot factor that out anymore

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PQR is a right angled triangle calculate the size of angle marked x

romanna [79]

Answer:

$\displaystyle x \approx 37.4^\circ$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
Subtraction Property of Equality

Trigonometry

[Right Triangles Only] SOHCAHTOA
[Right Triangles Only] cosθ = adjacent over hypotenuse

Step-by-step explanation:

Step 1: Define

Angle θ = x

Adjacent Leg = 5.8

Hypotenuse = 7.3

Step 2: Solve for x

Substitute in variables [Cosine]: $\displaystyle cosx^\circ = \frac{5.8}{7.3}$
[Fraction] Divide: $\displaystyle cosx^\circ = 0.794521$
[Equality Property] Trig inverse: $\displaystyle x^\circ = cos^{-1}(0.794521)$
Evaluate trig inverse: $\displaystyle x = 37.39^\circ$
Round: $\displaystyle x \approx 37.4^\circ$

8 0

2 years ago

Find the area of the composite figure below.

daser333 [38]

Answer:

112

Step-by-step explanation:

srry. i meant to put 112 erlier

3 0

2 years ago

Question 3:

Olegator [25]

The answer is B because area it's length times width and 5 times 3 is 15

6 0

3 years ago

Read 2 more answers

A 30-60-90 right triangle has a hypotenuse of 4 inches, What is the length in inches of the short leg? (The one opposite the 30

Yuliya22 [10]

Answer:

Step-by-step explanation:

In 30-60-90

The hypotenuse is always the short leg multiplied by 2

So going backward, 4/2 = 2

7 0

2 years ago

I got the answer but I don't understand what the -1 does

Kazeer [188]

The -1 affects the coefficient of the entire term.

Without the -1,
the term has a positive coefficient.
(3a)² = 9a²

However, with the -1,
the term has a negative coefficient.
-(3a)² = -9a²

7 0

3 years ago

Read 2 more answers