Please help!!! It is very hard!!!!!!!!!!!¡!!!!!!!!!!!!!!!!!!

sergiy2304 [10]

I’m pretty sure the equation would be

2x + 13 < 3x - 2

4 0

2 years ago

aalyn [17]

Answer:

6bikes

Step-by-step explanation:

Simple

........ ..........

4 0

2 years ago

Nadya [2.5K]

Answer:

$312.5\pi \text{ km}^3\approx 981.75\text{ km}^3$

Step-by-step explanation:

We have been given that a series of 3 separate, adjacent tunnels is constructed through a mountain. Its length is approximately 25 kilometers.

Each of the three tunnels is shaped like a half-cylinder with a radius of 5 meters.

Since we know that volume of a semicircular or a half cylinder is half the volume of a circular cylinder.

$\text{Volume of a semicircular cylinder}=\frac{\pi r^2h}{2}$ , where,

r = Radius of cylinder,

h = height of the cylinder.

Upon substituting our given values in volume formula we will get,

$\text{Volume of a semicircular cylinder}=\frac{\pi (5\text{ km})^2*25\text{ km}}{2}$

$\text{Volume of a semicircular cylinder}=\frac{\pi*25\text{ km}^2*25\text{ km}}{2}$

$\text{Volume of a semicircular cylinder}=\frac{\pi*625\text{ km}^3}{2}$

$\text{Volume of a semicircular cylinder}=\pi*312.5\text{ km}^3$

$\text{Volume of a semicircular cylinder}=981.74770\text{ km}^3$

Therefore, the volume of earth removed to build the three tunnels is $312.5\pi \text{ km}^3\approx 981.75\text{ km}^3$ .

4 0

2 years ago

andriy [413]

Answer:

Per how many days?

Step-by-step explanation:

5 0

2 years ago

MArishka [77]

8z +3 - 2z < 51
6z + 3 < 51
-3. -3
6z < 48
-- ---
6. 6

z<8

8 0

3 years ago