# Determine r′(8) to the nearest tenth when r(x)=90x5 / 2x (Do not include "r′(8)=" in your answer.)

Question
3 views

Determine r′(8) to the nearest tenth when r(x)=90x5 / 2x (Do not include "r′(8)=" in your answer.)

check_circle

Step 1

We have to find derivative of r(x) at given point.

r(x) is given by:

Step 2

We will use following rules to find derivative .

Rules are given below:

Step 3

Now with the help of above rules we will find derivative...

### Want to see the full answer?

See Solution

#### Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in

### Calculus
{"ft_lang_label":"__label__en","ft_lang_prob":0.8672131,"math_prob":0.65303516,"size":1474,"snap":"2019-51-2020-05","text_gpt3_token_len":407,"char_repetition_ratio":0.11904762,"word_repetition_ratio":0.0,"special_character_ratio":0.30325645,"punctuation_ratio":0.20263158,"nsfw_num_words":0,"has_unicode_error":false,"math_prob_llama3":0.9872646,"pos_list":[0,1,2],"im_url_duplicate_count":[null,null,null],"WARC_HEADER":"{\"WARC-Type\":\"response\",\"WARC-Date\":\"2020-01-20T05:52:04Z\",\"WARC-Record-ID\":\"<urn:uuid:0b819eba-26bd-4977-8206-b63dfc3519b3>\",\"Content-Length\":\"106923\",\"Content-Type\":\"application/http; msgtype=response\",\"WARC-Warcinfo-ID\":\"<urn:uuid:5e866f00-408e-46da-b394-8bc2033e7c86>\",\"WARC-Concurrent-To\":\"<urn:uuid:2f6c36bb-4d96-4d41-a389-8869c50fb750>\",\"WARC-IP-Address\":\"54.192.30.72\",\"WARC-Target-URI\":\"https://www.bartleby.com/questions-and-answers/determine-r8-to-the-nearest-tenth-when-rx90x-5-2-x-do-not-include-r8-in-your-answer./8cc8a888-89ef-4287-a6d7-74c6016f431c\",\"WARC-Payload-Digest\":\"sha1:2AN67VQ7WXOKQZ5W2XXNSELS67Q3XEZQ\",\"WARC-Block-Digest\":\"sha1:A2AWTBNBB6FDYYQ6T6XDD7SSTD5BDPIP\",\"WARC-Identified-Payload-Type\":\"text/html\",\"warc_filename\":\"/cc_download/warc_2020/CC-MAIN-2020-05/CC-MAIN-2020-05_segments_1579250597458.22_warc_CC-MAIN-20200120052454-20200120080454-00400.warc.gz\"}"}