3 years ago

What is the solution to the system of equations graphed below?

Mathematics

1 answer:

Marina CMI [18]3 years ago

7 0

the answer is a. 1,-2

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Please help grazie!!

Harlamova29_29 [7]

Answer:

v=-2

Step-by-step explanation:

2•v+2=-2

subtract 2 from both sides

2•v=-4

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so v=-2

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If A = 50 degrees, B = 62 degrees, and a = 4, find b. Round to the nearest tenth.

____ [38]

Answer:

$b \approx 4.6$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Pre-Calculus

Law of Sines: $\frac{sin(A)}{a} = \frac{sin(B)}{b}$

Step-by-step explanation:

Step 1: Define

A = 50°

B = 62°

a = 4

Step 2: Solve for b

Substitute [LOS]: $\frac{sin(50)}{4} = \frac{sin(62)}{b}$
Cross-multiply: $bsin(50) = 4sin(62)$
Isolate b: $b = \frac{4sin(62)}{sin(50)}$
Evaluate: $b = 4.61042$
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Step-by-step explanation:

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