PLEASE HELP ASAP! BRAINLIEST! Find the missing variables of the triangles!

Several students measured a 25mm long nail and wrote the measurements shown in the table below. Whose measurement had the greate

Ksivusya [100]

Tenicia (she was the most off)

3 0

3 years ago

Allen opens a retirement savings account with an initial deposit of $5,000. He makes annual contributions to the account, and at

Lera25 [3.4K]

Answer:

He gained 3,650 dollars over 5 years of saving his retirement money

Step-by-step explanation:

Just subtract 5,00 from 8,000 and u get 3,000 so then just add 650 to the 3,000 and thats your answer 3,650!!

3 0

3 years ago

What is the factored form of this expression?<br> 9x^2-65y^2

Lesechka [4]

Answer:

Step-by-step explanation:

I suspect it is 64 not 65,

9x^2-64y^2

= (3x - 8y)(3x + 8y).

(If it is 65 there are no factors)

6 0

3 years ago

Read 2 more answers

A series of three? separate, adjacent tunnels is constructed through a mountain. Its length is approximately 25 kilometers. Each

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

3 years ago

A cyclist rides his bike at a speed of 18 miles per hour. What is this speed in kilometers per hour? How many kilometers will th

Sonja [21]

Well, if 1 mile = 1.6 kilometers and he's traveling at 18mph, then do 18 x 1.6 which = 28.8.

So, this is his current speed in kph

3 x 28.8 = 86.4‬

They will have traveled 86.4‬ kilometers

(I haven't worked with this kind of math in a while so correct me if I'm wrong!)

4 0

3 years ago