Find the missing length indicated

Mathematics

2 answers:

faltersainse [42]3 years ago

6 0

Answer:

D) 20

Step-by-step explanation:

Len [333]3 years ago

4 0

Answer:

D) 20

Step-by-step explanation:

they are asking for the longest length of the triangle. as you can see, 20 is just over 15, and from the diagram, the missing length is just over 15 so we can apply our knowledge to come to the answer of 20.

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The weight of Jacobâ€™s backpack is made up of the weight of the contents of the backpack as well as the weight of the backpack

ryzh [129]

The equation can be used to determine t, the weight of the textbooks is t = 0.7w

Given:

let

Total weight = w

Weight of notebook = n

Weight of backpack = b

Weight of textbook = t

w = n + b + t

where

n = 4 pounds

b = 2 pounds

t = 0.7w

w = 4 + 2 + 0.7w

w - 0.7w = 4 + 2

0.3w = 6

w = 6/0.3

w = 20

Recall,

t = 0.7w

= 0.7(20)

= 14 pounds

Therefore, the weight of the textbook is 14 pounds

Learn more about equation:

brainly.com/question/4916384

5 0

3 years ago

Answer this too, the BRAINIEST!

-Dominant- [34]

Check out the attached image below for the steps on how to do this derivation.

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Some notes:

For line 2, I used the identity $\sec^2\theta = \tan^2\theta+1$
For line 7, I applied the reciprocal to both sides.
For line 8, I used the identity $\cot\theta = \frac{1}{\tan\theta}$
For line 9, I used the identty $\cot^2\theta = \csc^2\theta - 1$ which is a rearrangement of $\cot^2\theta + 1 = \csc^2\theta$
For lines 1 through 6, I'm isolating tan^2, so that I can later transform that into cot^2, which leads to csc^2. All of this is done through the identities mentioned above.