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3 years ago

Solve |x|>3 A.{-3,3} B.{x|x<-3 u x>3} C.{x|x<-3Ωx>3}

Mathematics

1 answer:

Talja [164]3 years ago

6 0

$|x| > 3\iff x > 3\ \vee\ x < -3\\\\Answer:B.\ \{x|\ x < -3\ \vee\ x > 3\}$

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Who can help me out with this question???

GaryK [48]

Answer:

x = 13

Step-by-step explanation:

$a^{2} +b^2 = c^2\\12^2 + 5^2 = c^2\\144 + 25 = c^2\\169 = c^2\\$

Take the square root of both sides

$\sqrt{169} = \sqrt{c^2} \\13 = c$

8 0

2 years ago

Indicate the method you would use

FinnZ [79.3K]

Answer:

correct choice is 1st option

Step-by-step explanation:

Two given triangles have two pairs of congruent sides: one pair of length 7 units and second pair of length 8 units. The third side is common, i.e the lengths of third sides are equal too.

Use SSS theorem that states that if three sides of one triangle are congruent to three sides of another triangle, then these two triangles are congruent.

Thus, given triangles are congruent by SSS theorem.

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3 years ago

The fastest race horse ran 1/4 mile in 1/3 of a minute. What was the horse's running speed?

bagirrra123 [75]

Answer:

3/4 miles per minute

Step-by-step explanation:

To get speed in miles per minute, just divide distance/time

1/4 mile / 1/3 minute = 3/4 miles per minute

If you want miles per hour, you'll have to convert minutes to hours.

3/4 miles/minute * 60 minutes/hour = 45 miles/hour

6 0

2 years ago

Can someone please help me

zmey [24]

Answer:

Step-by-step explanation:

8 0

2 years ago

B. f(x) = -1x - 4; Find f(-3)

Margaret [11]

Answer:

f(-3) = -1

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Functions
Function Notation

Step-by-step explanation:

Step 1: Define

Identify

f(x) = -1x - 4

Step 2: Evaluate

Substitute in x [Function f(x)]: f(-3) = -1(-3) - 4
Multiply: f(-3) = 3 - 4
Subtract: f(-3) = -1

4 0

2 years ago