Write an expression, using an exponent, that is equivalent to 9\times 9\times 9\times 9\times 9\times 9\times 99×9×9×9×9×9×9

Mathematics

2 answers:

jeka57 [31]3 years ago

7 0

Nine to the eighth power

Zigmanuir [339]3 years ago

7 0

9^88 would be the answer

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What is the value of a? <br> 14 – 2a = 4a – 16

VladimirAG [237]

14 - 2x = 4a - 16

First, add 2a to both sides. / Your problem should look like: $14 = 4a - 16 + 2a$
Second, simplify 4a - 16 + 2a to get 6a - 16. / Your problem should look like: $14 = 6a - 16$
Third, add 16 to both sides. / Your problem should look like: $14 + 16 = 6a$
Fourth, add 14 + 16 to get 30. / Your problem should look like: $30 = 6a$
Fifth, divide both sides by 6. / Your problem should look like: $\frac{30}{6} = a$
Sixth, 6 goes into 5 to get 30, so simplify $\frac{30}{6}$ to 5. / Your problem should look like: $5 = a$
Seventh, switch your sides. / Your problem should look like: $a = 5$

Answer: a = 5

3 0

3 years ago

Read 2 more answers

Integrate the following:<br><img src="https://tex.z-dn.net/?f=%20%5Cdisplaystyle%20%5Cint%20%5C%3A%20%20%5Ctan%28x%29%20%20%20%5

Korvikt [17]

Answer:

$\huge \boxed{\red{ \boxed{ - \cos(x) + C}}}$

Step-by-step explanation:

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

integration
PEMDAS

<h3>tips and formulas:</h3>

$\tan( \theta) = \dfrac{ \sin( \theta) }{ \cos( \theta) }$
$\sf \displaystyle \int \sin(x) \: dx = - \cos(x) + C$

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

$\sf \: rewrite \: \tan( \theta) \: as \: \dfrac{ \sin( \theta) }{ \cos( \theta) } : \\ = \displaystyle \int \: \frac{ \sin(x) }{ \cos(x) } \cos(x) \: dx \\ = \displaystyle \int \: \frac{ \sin(x) }{ \cancel{\cos(x) }} \: \cancel{ \cos(x)} \: dx \\ = \displaystyle \int \: \sin(x) \: dx$
$\sf \: use \: the \: formula : \\ \sf \displaystyle - \cos(x)$
$\sf add \: constant : \\ - \cos(x) + C$