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3 years ago

What is 0.5×(-0.6) ×0.4= and pls show how

Mathematics

1 answer:

blondinia [14]3 years ago

5 0

Answer:

$- 0.12$

Step-by-step explanation:

1) Solve inside the parentheses.

$(0.5 \times - 0.6)$

2) Simplify (0.5 × - 0.6 ) to -0.3.

$- 0.3 \times 0.4$

3) Simplify -0.3 × 0.4 to -0.12.

$- 0.12$

Therefor, the answer is -0.12 .

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The object below was made by placing a cone on top of a cylinder. The base of the cone is congruent to the base of the cylinder.

Ber [7]

Answer:

Part 1) The volume of the object is $32\pi\ cm^{3}$ or $100.48\ cm^{3}$

Part 2) see the procedure

Step-by-step explanation:

The picture of the question in the attached figure

Part 1) What is the volume, in cubic centimeters, of the object?

we know that

The volume of the object is equal to the volume of the cylinder plus the volume of the cone

Find the volume of the cone

The volume of the cone is equal to

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

we have

$r=4/2=2\ cm$ -----> the radius is half the diameter

$h=3\ cm$

substitute the values

$V=\frac{1}{3}\pi (2^{2})(3)=4\pi\ cm^{3}$

Find the volume of the cylinder

The volume of the cylinder is equal to

$V=\pi r^{2} h$

we have

$r=4/2=2\ cm$ -----> the radius is half the diameter

$h=(10-3)=7\ cm$

substitute the values

$V=\pi (2^{2})(7)=28\pi\ cm^{3}$

Part 2) Then explain how you found the volume of the total shape

The volume of the total shape is equal to the volume of the cylinder plus the volume of the cone

$4\pi\ cm^{3}+28\pi\ cm^{3}=32\pi\ cm^{3}$ ------> exact value

Find the approximate value of the volume

assume

$\pi=3.14$

$32(3.14)=100.48\ cm^{3}$

7 0

3 years ago

Read 2 more answers

Can someone help with this question

IrinaK [193]

210 - ( 30 * x )

**I assume the question asks for total minutes.

6 0

3 years ago

Please please help I really need it today please show work

Cerrena [4.2K]

Answer:

x=9.

perimeter=68

area=168

Step-by-step explanation:

First find the side that has a exact number which would be the bottom 28cm then look at the opposite side (2x+10) in order to find x subtract 10 from 28 which gives you 18, now 2x means x multiplied by 2 so what multiplied by 2 = 18? 9 meaning x=9. Now you are going to want to plug 9 in to your short side (x-3) once you plug it in it should look like this 9-3 and 9-3=6 meaning the short side is 6cm. In order for you to find the perimeter you have to add the sides together so 28+28+6+6 wich =68 and in order for you to find the area you have to multiply the length and the width so 28x6 which is 168.

hope that helped :)

4 0

3 years ago

Read 2 more answers

Question 15 of 20

grandymaker [24]

Answer: 3 inches

Step-by-step explanation:

4 0

2 years ago

12. (2v^3 - v + 8) + (-v^3 + v - 3) 14. (4h^3 + 3h + 1) - (-5h^3 + 6h - 2)

Lana71 [14]

12. On addition, you can just combine like terms.
2v^3+(-v^3)=v^3
-v+v cancels each other out
8+(-3)=5
So you have v^3+5

14 On subtraction, you have to remember to distribute the negative sign so after you do that you have:
4h^3+3h+1+5h^3-6h+2
Then you can combine like terms
4h^3+5h^3=9h^3
3h-6h=-3h
1+2=3
So you end up with:
9h^3-3h+3

Hope that helps and feel free to ask any questions.

7 0

3 years ago

What is 0.5×(-0.6) ×0.4= and pls show how​

What is 0.5×(-0.6) ×0.4= and pls show how