Simplify the expression that you wrote in part D, and explain what the number means with regard to the problem.

Mathematics

2 answers:

klasskru [66]3 years ago

8 0

Answer:

<em>When two negatives are put together, it makes a positive. Something subtracted by a negative number, will then have that negative number added to it. </em>

<em>Step-by-step explanation: hope it helps! i know its late but other people can use the answer. <3</em>

Aleonysh [2.5K]3 years ago

4 0

Answer:

12.3 + 9.6 = 21.9

The number 21.9 means Vivian's elevation increased by 21.9 feet as she rode the Ferris wheel from the bottom to the top.

Step-by-step explanation:

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Need help with this trigonometry word problem

fenix001 [56]

Answer:

$\huge \boxed{ \boxed{ \sf 6\sqrt{3} \: or \: 10.4}}$

Step-by-step explanation:

<h3>to understand this</h3><h3>you need to know about:</h3>

trigonometry
PEMDAS

<h3>let's solve:</h3>

to find <u>how far the ladder is from the foot of the </u><u>wall </u>

we will use tan function because we are given opposite and angle

we need to find adjacent

$\quad \tan( \theta) = \dfrac{opp} {adj}$

let adjacent be BC

$\boxed{ \red{ \boxed{accoding \: to \: the \: question : }}}$

$\quad \: \tan( {60}^{ \circ} ) = \dfrac{6}{BC}$

we will use a little bit algebra to figure out BC

$\sf substitute \: the \: value \: of \: \tan( {60}^{ \circ} ) \: i.e \: \sqrt{3} : \\ \sqrt{3} = \frac{BC}{6}$
$\sf cross \: multiplication : \\ \therefore \: BC = 6\sqrt{3} \: or \: 10.4$