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3 years ago

What is the measure of each interior angle of an equiangular decagon?

Mathematics

1 answer:

nadya68 [22]3 years ago

7 0

Answer:

The measure of each interior angle of a regular decagon is 144. The measure of each interior angle of a regular nonagon is 140. Step-by-step explanation:

Sorry if am wrong.

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Tracy measured the weight of her hamster. Her first measurement was 13 ounces. Her second measurement was 1 pound. Which measure

pickupchik [31]

Answer:

13 ounces

Step-by-step explanation:

5 0

3 years ago

Please help. BRAINLIEST TO BEST ANSWER

shepuryov [24]

It’s B
I’m sure of it

3 0

3 years ago

Read 2 more answers

In quadratic drag problem, the deceleration is proportional to the square of velocity

Mars2501 [29]

Part A

Given that $a= \frac{dv}{dt} =-kv^2$

Then,

$\int dv= -kv^2\int dt \\ \\ \Rightarrow v(t)=-kv^2t+c$

For $v(0)=v_0$ , then

$v(0)=-kv^2(0)+c=v_0 \\ \\ \Rightarrow c=v_0$

Thus, $v(t)=-kv(t)^2t+v_0$

For $v(t)= \frac{1}{2} v_0$ , we have

$\frac{1}{2} v_0=-k\left( \frac{1}{2} v_0\right)^2t+v_0 \\ \\ \Rightarrow \frac{1}{4} kv_0^2t=v_0- \frac{1}{2} v_0= \frac{1}{2} v_0 \\ \\ \Rightarrow kv_0t=2 \\ \\ \Rightarrow t= \frac{2}{kv_0}$

Part B

Recall that from part A,

$v(t)= \frac{dx}{dt} =-kv^2t+v_0 \\ \\ \Rightarrow dx=-kv^2tdt+v_0dt \\ \\ \Rightarrow\int dx=-kv^2\int tdt+v_0\int dt+a \\ \\ \Rightarrow x=- \frac{1}{2} kv^2t^2+v_0t+a$

Now, at initial position, t = 0 and $v=v_0$ , thus we have

$x=a$

and when the velocity drops to half its value, $v= \frac{1}{2} v_0$ and $t= \frac{2}{kv_0}$

Thus,

$x=- \frac{1}{2} k\left( \frac{1}{2} v_0\right)^2\left( \frac{2}{kv_0} \right)^2+v_0\left( \frac{2}{kv_0} \right)+a \\ \\ =- \frac{1}{2k} + \frac{2}{k} +a$

Thus, the distance the particle moved from its initial position to when its velocity drops to half its initial value is given by

$- \frac{1}{2k} + \frac{2}{k} +a-a \\ \\ = \frac{2}{k} - \frac{1}{2k} = \frac{3}{2k}$

7 0

3 years ago

Solve for x. Round to the nearest tenth, if necessary.

Nina [5.8K]

Answer:

15.4 (rounded to 1dp)

Step-by-step explanation:

5 0

3 years ago

For 4 days, you give a patient 1 1/2 oz of medication 5 times per day. How much medication did you give the patient over the 4 d

Lelu [443]

You multiply 1 1/2 by 5 (because you give it to them 5 times a day) and you get 7 1/2 then you have to multiply that by 4 (because you’re calculating how much over 4 days) and you get 30oz .

3 0

3 years ago