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2 years ago

3(2x + 1) = -5x -5 + 3x solve by algebraic expressions

Mathematics

1 answer:

Svet_ta [14]2 years ago

8 0

Partial FOIL method for the first half
Then just add like terms
and put both half’s together
then have x on one side and numbers on the other
then you can work out X
X= -1

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Nesterboy [21]

Answer:

Step-by-step explanation:

1/2+1/3+1/4 - 0.9

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In ΔHIJ, the measure of ∠J=90°, the measure of ∠H=71°, and JH = 2 feet. Find the length of IJ to the nearest tenth of a foot.

Dmitrij [34]

Answer:

IJ is 5.8 ft

Step-by-step explanation:

Here, we want to calculate the length of IJ

to Find IJ, we need the appropriate trigonometric ratio

The trigonometric ratio to use in this case is the one that connects the opposite and the adjacent

from the question, IJ is the opposite

This is the side facing the given angle

HI is the hypotenuse which is the side facing the right-angle

HJ is the third side which is the adjacent

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That is the Tan

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2 years ago

What is -√12+3√3? I need to know.

Gelneren [198K]

Answer:

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Step-by-step explanation:

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2 years ago

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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: $\displaystyle x \approx 37.4^\circ$

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2 years ago

What is the area of the figure below? 40 mm2 80 mm2 88 mm2 96 mm2

Anvisha [2.4K]

The answer for this question is 88mm2

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3(2x + 1) = -5x -5 + 3x solve by algebraic expressions​

3(2x + 1) = -5x -5 + 3x solve by algebraic expressions