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3 years ago

Use a graphing calculator or online application to find the solutions to x^2-9 =6sqrt3/x to the nearest tenth.

Mathematics

1 answer:

Olegator [25]3 years ago

4 0

Answer:

{-1.7, 3.5}

Step-by-step explanation:

I find it convenient to graph the difference of the two sides of the equation. That difference is zero when the equation is satisfied. This equation has two solutions, near x = -1.7 and x = 3.5.

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Which equation represents a line which is perpendicular to the line 5x + 2y = 12?

o-na [289]

Answer:

Step-by-step explanation:

Changing to slope-intercept form:

5x + 2y = 12 {subtract 5x from both sides}

2y = -5x + 12 {divide both sides by 2}

y = -⁵/₂ x + 6

y=m₁x+b₁ ⊥ y=m₂x+b₂ ⇔ m₁×m₂ = -1

{Two lines are perpendicular if the product of theirs slopes is equal -1}

y =-⁵/₂ x + 1 ⇒ m₁ = -⁵/₂

-⁵/₂× m₂ = -1 ⇒ m₂ = ²/₅

So, any line perpendicular to 5x + 2y = 12 must have slope m =²/₅

7 0

2 years ago

Adozen of notebooks cost Rs 480. How Much will 7 note book cost?

Savatey [412]

Answer: Rs 280

A dozen = 12

12 notebooks --> Rs 480

1 notebooks --> 480/12 =Rs 40

7 notebooks --> 40 * 7 = Rs 280

8 0

2 years ago

Read 2 more answers

Tim buys a torch and battery the torch costs 11 times as much as the battery Tim pays with a ?10 note and he gets ?4.84 change h

KengaRu [80]

The cost of 1 battery is 0.43

Step-by-step explanation:

Let the cost of 1 battery be x

We are given that the torch costs 11 times as much as the battery

Cost of torch = 11x

Total cost of 1 battery and torch = 11x+x=12x

Tim pays $10

He receives change of $4.84

Total cost of 1 torch and battery = 10 - 4.84 =$5.16

So, $12x= 5.16$

$x= \frac{5.16}{12}$

$x=0.43$

Hence the cost of 1 battery is 0.43

6 0

3 years ago

What is the decimal for 7/11

kherson [118]

Answer:

.6363 repeating

Step-by-step explanation:

5 0

3 years ago

Which expressions are equal to the expression _2.7 _ 16.4?

Genrish500 [490]

This is just to easy the correct answer is A

8 0

3 years ago

Read 2 more answers