All categories

3 years ago

Which of the following options have the same value as 30%, percent of 81? Choose 3 answers:

Mathematics

1 answer:

Mila [183]3 years ago

5 0

30% is a way to express the fraction 30/100 = 3/10

So, 30% of 80 is

$80\cdot \dfrac{3}{10}=8\cdot 3 = 24$

You might be interested in

Which of the following types of graphs is best for plotting the mean, median, and mode of data?

frutty [35]

Answer:

Stem-and-leaf. You can use a stem-and-leaf plot to find the mean, median and mode of a set of data.

5 0

3 years ago

Please help with these math questions part 2

NikAS [45]

5).
and
6).
The volume of a sphere is

   (4/3) (pi) (radius)³ .

In #5, the 'pi' is already there next to the answer window.
You just have to come up with the (4/3)(radius³).

Remember that the radius = 1/2 of the diameter.

7). The volume of a cylinder is

   (pi) (radius²) (height) .

Divide the juice in the container by the volume of one can,
to get the number of cans he can fill.

8). The volume of a cone is

   (1/3) (pi) (radius of the round bottom)² (height) .

He starts with a small cone, he then adds clay to it to make it higher.
The question is: How much clay does he ADD to the short one,
to make the bigger one ?

Use the formula to find the volume of the short one.
Use the formula again to find the volume of the bigger one.
Then SUBTRACT the smaller volume from the bigger volume.
THAT's how much clay he has to ADD.

Notice that the new built-up cone has the same radius
but more height than the first cone.
_______________________________________

Don't worry if you don't understand this.

The answer will be this number:

(1/3) (pi) (radius²) (height of the big one minus height of the small one).

6 0

3 years ago

Which of the following is true about an isosceles trapezoid?

mixas84 [53]

<span>The diagonals are congruent.

</span>

6 0

3 years ago

express 121,200 in exponential (powers of 10) notation. express the earth sun distance in kilometers in powers of 10 notation.

Mashutka [201]

The exponential form of given number 121200 is 1.212 × $10^5$

And the earth sun distance in kilometers in powers of 10 notation is 1.5 × $10^8$

For given question,

We need to express 121,200 in exponential (powers of 10) notation.

To use scientific notation, pick a value between 1 and 10, then multiply it by 10ˣ.

The number between 1 and 10 in 121200 is 1.212 with 5 decimal points.

So, the exponential notation of given number would be,

121,200 = 1.212 × $10^5$

Earth's average distance from the Sun is around 93 million miles (150 million kilometers). That's one AU.

So the number between 1 and 10 in 150,000,000 is 1.5, with 8 decimal points.

So, the distance between he Earth and the Sun is:

150,000,000 = 1.5 × 10⁸

Therefore, the exponential form of given number 121200 is 1.212 × $10^5$

And the earth sun distance in kilometers in powers of 10 notation is 1.5 × $10^8$

Learn more about the powers of 10 here:

brainly.com/question/13303295

#SPJ4

4 0

1 year ago

Enter an equation in slope-intercept form for the line that passes through (0, 0) and is parallel to the line described by y = −

GREYUIT [131]

Answer:

Step-by-step explanation:

7 0

3 years ago