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3 years ago

HELP !!!!!!!!!!!!!!!!!!!!!!!!! i just to lazy

Mathematics

1 answer:

MariettaO [177]3 years ago

6 0

Answer:

Step-by-step explanation:

you multiply 4 times 8 and 1.5 times 4 and 1.5 times 2

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The equation above can be used to calculate the volume V, of a cone with a height h and radius r. If the volume of a cone is 243

WARRIOR [948]

Answer:

The height of the cone is $h=9\ ft$

Step-by-step explanation:

we know that

The volume of a cone is equal to

$V=\frac{1}{3}\pi r^{2}h$

In this problem we have

$V=243\pi\ ft^{3}$

$r=h\ ft$

substitute

$243\pi=\frac{1}{3}\pi (h^{2})h$

simplify

$729=(h^{3})$

$h=\sqrt[3]{729}\ ft$

$h=9\ ft$

5 0

3 years ago

Write the equation of a line that passes through the point (-8,2) and is parallel to the line 3x-2y=12

arlik [135]

Answer:

Step-by-step explanation:

-2y = -3x + 12

2y = 3x - 12

y = 3/2x - 6

y - 2 = 3/2(x + 8)

y - 2 = 3/2x + 12

y = 3/2x + 14

7 0

3 years ago

The center on a target has a diameter of 5 inches. The whole target has a diameter of 25 inches. The center of the target takes

Komok [63]

4%

To find the percentage, first find the area of both circles. The area formula is $\pi r^{2}$ . After finding the area of the center of the target (19.625) and the area of the large target (490.625), set up a percent proportion to determine the percentage that the center takes up:

$\frac{is}{of} = \frac{percent}{100}$

$\frac{19.625}{490.625} = \frac{percent}{100}$

Cross multiplying and dividing by 490.625 will give a total of 4%.

4 0

3 years ago

How to calculate angle which is 25 degree?

jekas [21]

For calculate a angle we use Protactor .
First place the protractor at 0 and starting point of angle .
Now count the angle where it meets .

7 0

3 years ago

ANYONE up???????????????????????????and can i get help with this

Mashcka [7]

Answer:

here's the solution : -

=》2x - 3y = -29

=》x + 6y = 23

=》x = 23 - 6y

now, plugging the value of x in equation 1, we get : -

=》2x - 3y = -29

=》2 (23 - 6y) - 3y = - 29

=》46 - 12y - 3y = -29

=》-15y = -29 - 46

=》y = -75 ÷ -15

=》y = 5

now, plugging the value of y as 5 in equation 2

=》x + 6y = 23

=》x + (6 × 5.2) = 23

=》x = 23 - 30

=》x = - 7

8 0

3 years ago