Mathematics, 08.04.2021 07:50 rollercoasterbuddies

Solve for x. round your answer to the nearest tenth
Trigonometry

Solve for x. round your answer to the nearest tenthTrigonometry

Answers: 1

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Answer from: anonymous666s

$\displaystyle x \approx 11.1$

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 = 42°

Adjacent Leg = x

Hypotenuse = 15

Step 2: Solve for x

Substitute in variables [cosine]: $\displaystyle cos42^\circ = \frac{x}{15}$ [Multiplication Property of Equality] Isolate x: $\displaystyle 15cos42^\circ = x$ Rewrite: $\displaystyle x = 15cos42^\circ$ Evaluate: $\displaystyle x = 11.1472$ Round: $\displaystyle x \approx 11.1$

Answer from: Quest

Don’t know sorry about that

Answer from: Quest

hello from mrbilldoesmath!

answer: (7x + 6y) ( 49x^2 - 42xy + 36y^2)

discussion:

in general, the factorization of a^3 + b^3 is

a^3 + b^ 3 = (a + b) ( a^2 - ab + b^2)

in our case note that 343 = 7^3 and 216 = 6^3 so the equation becomes:

343x^3 + 216y^3 = (7x)^3 + (6y)^3

if you think of a (above) as 7x and b as 6y the factorization becomes

343x^3 + 216y^3 =

((7x + 6y) ( (7x)^2 - 7x*6y + (6y)^2) =

(7x + 6y) ( 49x^2 - 42xy + 36y^2)

you,

mrb

(a + b) (a^2 - a b + b^2)

Factor the expression given below. wrote each factor as a polynomial in descending order. enter expo

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Solve for x. round your answer to the nearest tenth
Trigonometry
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