Find the slope of a line that has points (-2,6) and (4,-1)

Tim has to cover 3 tanks completley with paint.

bija089 [108]

answer:

<h3>Total surface area of 3 tanks=34.3 m^2</h3><h3>7 tins of paint are required.</h3>

Solution,

diameter of tank=1.4 m

Height of tank=1.9 m

Given tank has top and bottom 

Now, The total surface area of cylinder tank is given by:

 $tsa = 2\pi \: {r}^{2} + (2\pi \: r \: ) \times h$ 

r( radius of tank)=

 $\frac{diameter}{2} = \frac{1.4}{2} = 0.7 \: m$ 

h(height of tank)=1.9 m

TSA of 1 tank

=

 $2 \times 3.14 \times {(0.7)}^{2} + 2 \times 3.14 \times 0.7 \times 1.9 \\ = 11.435 \: {m}^{2}$ 

TSA Of 3 tanks

=

 $3 \times 11.435 \: {m}^{2} \\ = 34.3 \: {m}^{2}$ 

Given a tin of plate covers 5m^2 area.

No.of tins required:

1 tin 5m^2

x tin 34.3 m^2

 $5x = 34.3(cross \: multiplication) \\ or \: x = \frac{34.3}{5} \\ x = 6.86 \\ x = 7 \: tins$ 

therefore 7 tins are required.

Hope this helps...

Good luck on your assignment....

8 0

3 years ago

The Lakeside Marina charges a $35 rental fee for a boat in addition to charging $15 per hour. What is the rate of change for thi

IgorC [24]

Answer:

I think that it is y=15x+35

Step-by-step explanation:

15*x is how many hours and you have to pay $35 regardless to rent the boat

4 0

3 years ago

Which of the following algebraic expressions can be used to express the statement "three less than z squared?"

Citrus2011 [14]

"z˄2 − 3" because x squared is z^2, and 3 less of it would mean to subtract it from 3

6 0

3 years ago

If two points have the same __ or ____ coordinate, then they lie under same ____of the coordinate plane

Marina CMI [18]

Answer:
x, y, quadrant

7 0

3 years ago

you make a salad and share with friends your sister eats 1/3 of it before they arrive (it is a a and b question pls help)

bagirrra123 [75]

Answer:

Sister Is a PIG

Step-by-step explanation:

and Your Friends Gets her Scraps

3 0

3 years ago