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3 years ago

Is 4.47 a rational number

Mathematics

1 answer:

bonufazy [111]3 years ago

6 0

I think 4.47 is a a rational number

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Heights of women have a bell-shaped distribution with a mean of 161 cm and a standard deviation of 7 cm. What percent of women f

harkovskaia [24]

Answer:b

Step-by-step explanation:d

504

5 0

2 years ago

A water storage tank is in the shape of a cone with the pointed end down. If the radius is 21 feet and the depth of the tank is

andre [41]

The volume of the water storage tank is the amount of space in it

The volume of the water storage tank is 6468 cubic feet

<h3>How to determine the volume?</h3>

The given parameters are:

Radius (r) = 21 feet

Height (h) = 14 feet

The shape of the water storage tank is a cone.

And the volume of a cone is:

V = 1/3πr^2h

So, we have:

V = 1/3 * 22/7 * 21^2 * 14

This gives

V = 6468

Hence, the volume of the water storage tank is 6468 cubic feet

Read more about volumes at:

brainly.com/question/1972490

4 0

3 years ago

Town A is 14 feet below sea level and town B is 489 feet above sea level what is the difference in elevation between town A and

amm1812

Answer:

Are there any answer choices?

Step-by-step explanation:

3 0

3 years ago

I need some help please!

kvv77 [185]

Answer:

See below

Step-by-step explanation:

Given :-

y || z

To Prove :-

m∠5 + m∠2 + m∠6 = 180°

Proof :-

Here we are required to prove that ,

$\rm\implies m\angle 5 + m\angle 6 + m\angle 2 = 180^o$

And here it's given that , y || z . Therefore ,

∠3 = ∠6 ( alternate interior angles )
∠1 = ∠5 ( alternate interior angles )

Now we know that the measure of a straight line is 180°. Therefore ,

$\rm\implies m\angle 1 + m\angle 2 + m\angle 3 = 180^o \\\\\implies\boxed{\rm m\angle 5 + m\angle 6 + m\angle 2 = 180^o}$

From 1 and 2 .

Hence Proved !

7 0

3 years ago

Please solve this question

Alchen [17]

Answer:

(3, 4 )

Step-by-step explanation:

3x - y = 5 → (1)

x + y = 7 → (2)

adding the 2 equations term by term will eliminate y

4x + 0 = 12

4x = 12 ( divide both sides by 4 )

x = 3

substitute x = 3 into either of the 2 equations and solve for y

substituting into (2)

3 + y = 7 ( subtract 3 from both sides )

y = 4

solution is (3, 4 )

4 0

2 years ago