3 years ago

A rule of thumb refers to ____

1 answer:

8 0

Answer: C) a general rule most people follow

The english phrase "rule of thumb" referes to an approximate method for doing something, based on practical experience rather than theory. An example of a rule of thumb would be: changing the oil of a car every certain number of milles traveled. "<em>To start with, change the oil every 5000 or 6000 miles". </em>In the example you can notice that is not strictly accurate or reliable for every situation.

You might be interested in

When a number x is multiplied by 8, the result is 35. What is the value of x? *

kap26 [50]

The formula would be:
8x=35

To find x, you need to divide both sides by 8:

x=35/8=4.375

So the answer is C

6 0

3 years ago

Read 2 more answers

Factorise:b+√b-12<br>An easy one.

aalyn [17]

Answer:

Step-by-step explanation:

If you let b = x^2 the problem becomes a whole lot easier. Note that x = √b

x^2 + x - 12

Now factor this trinomial.

(x + 4)(x - 3)

Now put b back into the equation

(√b + 4)(√b - 3)

7 0

3 years ago

Lines a and b are perpendicular. If the slope of line a is 3, what is the slope of line b?

erma4kov [3.2K]

Answer:

$\large\boxed{D.\ -\dfrac{1}{3}}$

Step-by-step explanation:

$\text{Let}\ k:y=m_1x+b_1\ \text{and}\ l:y=m_2x+b_2,\ \text{then}\\\\l\ ||\ k\iff m_2=m_1\\\\l\ \perp\ k\iff m_1m_2=-1\to m_2=-\dfrac{1}{m_1}\\-------------------\\\\\text{We have the slope of given line a:}\ m_1=3.\ \text{Therefore the slope of a line b}\\\text{perpendicular to a is: }\\\\m_2=-\dfrac{1}{m_1}\to m_2=-\dfrac{1}{3}$