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Lana71 [14]
4 years ago
10

Simplify -3(v+5)+2(2v+2)

Mathematics
1 answer:
marshall27 [118]4 years ago
3 0

Answer:

v-11

Step-by-step explanation:

Distribute:

-3 x v = -3v    -3 x 5 =-15    2 x 2v = 4v  2 x 2 = 4

Simplify:

-3v-15+4v=4

-3v+4v=v

4-15=-11

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How do I find the surface area and volume of any shape?
ipn [44]

Answer:

Step-by-step explanation:For any shape it’s always true that for volume

V

the surface area is:      =2‾‾‾√3

for some constant   depending on the shape. So to work out the surface area from the volume we just need to know the value of   for the shape in the question.

For a cube for example we have that  =6, assuming consistent units i.e.: unit 2 for area and unit 3

3

 for volume.

More generally if we have formula for both volume and surface area in terms of a particular one dimensional measurement  

d

 of the shape then we can always write these formula in the form:

 

=13

=12

for constants  constants   1  and  1

. Then we have:

=1‾‾‾√3

=1(1)2‾‾‾‾‾‾√3

=121‾‾‾√32‾‾‾√3

and therefore:

=121‾‾‾√3

For example for a sphere we have that   that  =42  and  =433 and therefore:

=4(43)2‾‾‾‾‾‾√3

=36‾‾‾‾√3

So if a particular sphere has volume   =8  then we can calculate its surface area to be:

=36‾‾‾‾√382‾‾√3=436‾‾‾‾√3 m2

 

7 0
4 years ago
How do I get the answer for this?
Rzqust [24]

1. Given: Note that on the top, it is shown right next to "given"

2. Vertical angles theorem: Angles vertically opposite of each other are congruent

3. Transitive Property: If ∠3 ≅ ∠2 (Given), and ∠2 ≅ ∠6, then ∠3 ≅ ∠6

hope this helps

5 0
3 years ago
The energy released by metabolism of 1 average candy bar is 1 x 10^6 joules.
Elis [28]

Answer: 32

Step-by-step explanation:

Given: The energy needed for 1 hour of running for an adult =4.5\times10^6\ joules.

Therefore. the energy needed for seven hours of running==7\times4.5\times10^6\ joules.=31.5\times10^6\ joules

Since, he energy released by metabolism of 1 average candy bar =1\times10^6\ joules.

Therefore, the number of candy bars an adult need to eat  to supply the energy needed for seven hours of running.=\frac{31.5\times10^6}{1\times10^6}=31.5\approx32

Hence, the adult need to eat 32 candies to supply the energy needed for seven hours of running.

3 0
3 years ago
#24 Help needed :P thanks
alukav5142 [94]
Have you got your answer yet?

7 0
3 years ago
The diagram shows a partly filled oil tank
Llana [10]
Wheres the digram? its not there
5 0
3 years ago
Read 2 more answers
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