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3 years ago

Find the least common multiple (LCM) of 6 and 10, O A. 60 O B. 20 O C. 40 O D. 30

Mathematics

1 answer:

kolezko [41]3 years ago

4 0

The answer is 30 I’m sure of it

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A smartphone costs $120. Sales tax is 5%. What is the total cost, including tax?

miv72 [106K]

Since 100% = $120,

105% = $126.

3 0

3 years ago

Solve by completing the square 3x2 + x - 2 = 0

DIA [1.3K]

Answer:

x = 2/3 or x = -1

Step-by-step explanation by completing the square:

Solve for x:

3 x^2 + x - 2 = 0

Divide both sides by 3:

x^2 + x/3 - 2/3 = 0

Add 2/3 to both sides:

x^2 + x/3 = 2/3

Add 1/36 to both sides:

x^2 + x/3 + 1/36 = 25/36

Write the left hand side as a square:

(x + 1/6)^2 = 25/36

Take the square root of both sides:

x + 1/6 = 5/6 or x + 1/6 = -5/6

Subtract 1/6 from both sides:

x = 2/3 or x + 1/6 = -5/6

Subtract 1/6 from both sides:

Answer: x = 2/3 or x = -1

3 0

3 years ago

-4x+7 x= -1 evaluate the expression

NeX [460]

Hello luv! So here is how I will evaluate this expression
-4x+7, x=-1 so you are using substitution
-4(-1)+7
=11

:)

3 0

3 years ago

Which inequality is represented by this graph

sertanlavr [38]

The right answer is of option D.

 $x \geqslant 4$ 

In the given graph, X is greater than 4 and X equals to 4.

Hope it helps.....

Good luck on your assignment

4 0

3 years ago

Write as a sum, difference or multiple of logarithms. In(8x) = [ ? ]8+ [ ]x

deff fn [24]

Answer:

In(8x)=[In]8 + [In]x

Step-by-step explanation:

By product rule:

$In(8x)=[In]8 + [In]x$

8 0

2 years ago