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2 years ago

I need help please and thank you

Mathematics

2 answers:

Andrej [43]2 years ago

8 0

Answer:

a=-7.275*967

Step-by-step explanation:

Ira Lisetskai [31]2 years ago

6 0

Answer: she is right a =-7.275*967

Step-by-step explanation:

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This robotic arm is made up of two cylinders with equal volume and two triangular prism hands. The volume of each hand is

BaLLatris [955]

Answer:

$\frac{r}{3\pi h+r}$

Step-by-step explanation:

Since the height isn't given, we assume it to be "h" (of cylinders). And the answer will be in terms of "r" and "h".

The area of 1 arm is given, so the area of 2 arms would be:

$A_{arm}=2*(\frac{1}{2}r*\frac{1}{3}r*2r)=\frac{2r^3}{3}$

Now, area of 2 cylinders would be the formula:

$A_{cyl}=2*(\pi r^2 h)=2\pi r^2 h$

So, total area is A_arm PLUS A_cyl. The fractional area the arms are would be gotten by taking expression A_arm divided by A_total.

Shown below:

$\frac{A_{arm}}{A_{total}}=\frac{\frac{2r^3}{3}}{2\pi r^2 h + \frac{2r^3}{3}}$

We simplify further:

$\frac{\frac{2r^3}{3}}{2\pi r^2 h + \frac{2r^3}{3}}\\=\frac{\frac{2r^3}{3}}{2r^2(\pi h + \frac{r}{3})}\\=\frac{r}{3(\pi h + \frac{r}{3})}\\=\frac{r}{3\pi h+r}$

THis is the answer.

6 0

2 years ago

Read 2 more answers

Frodo ran miles in of an hour. How many miles can Frodo run in one hour?

GaryK [48]

Frodo can run 1 miles in 1 hour

4 0

3 years ago

Help with question 4 please

Juliette [100K]

Answer: y=5 x=11

abc=def

ab=de <b=<e

17y-8=12+13y 11x-4=117

-13y -13y +4 +4

4y-8=12 11/11x=121/11

+8 +8 x=11

4/4y=20/4

y=5

7 0

2 years ago

This is hard........ help please?

anygoal [31]

Answer: C.

There are 215 total students in the band.

There are 27 seniors in the band.

The probability is found by dividing the number of seniors in the band by the TOTAL number of students in the band.

P(S|B) = 27/215 = 0.1255813953

You have to round off the answer too the nearest tenth.

P(S|B) = 0.13

6 0

2 years ago

What is 6x-36=216<br> What is x

stiks02 [169]

Answer:

x=42

Step-by-step explanation:

6x-36=216

+36 +36

6x = 252

x = 42

7 0

3 years ago

Read 2 more answers

I need help please and thank you​

I need help please and thank you