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3 years ago

8x - 3(2x - 4) = 3(x-6)

Mathematics

1 answer:

solong [7]3 years ago

5 0

Answer:

X=30

Step-by-step explanation:

...

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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

Triangle TRI has a base of m centimeters and a height of n centimeters. Rectangle RECT has a length of n centimeters and a width

hram777 [196]

The area of the triangle is
a=( m x n) /2 in cm² , implies 2xa = m xn
the area of the rectanglle
A= n x m in cm²
but we know 2xa = m xn = A, 
that means the surface of the rectangle is 2 times of the area of the triangle

7 0

3 years ago

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List the first 10 multiples for each number 3,4,7

notka56 [123]

Answer:

Step-by-step explanation:

3- 3, 6, 9, 12, 15, 18, 21, 24, 27, 30

4- 4, 8, 12, 16, 20, 24, 28, 32, 36, 40

7- 7, 14, 21, 28, 35, 42, 49, 56, 63, 70

HOPE IT HELPED

3 0

2 years ago

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HELP PLEASE????!!!! ASAP!!!!!!

Salsk061 [2.6K]

The slope is the amount it will cost you per mile, in addition to the flat fee represented by the y-intercept. (The cost before driving any miles.)

So b. is the correct answer as;

$25 is the cost per day to rent the car and $0.15 is the cost per mile.

8 0

2 years ago

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What is the expression 44 degrees equal to?

bekas [8.4K]

Sin44 is the same as Cos46. Hope this helped.

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3 years ago

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