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dolphi86 [110]
3 years ago
11

Miles incorrectly gave the product

Mathematics
1 answer:
Ne4ueva [31]3 years ago
5 0
He multiplied 7 and 2 then got 14 then he multiplied 7 and 6 and got 42 and changed it to 0.42 then added 14+0.42 and got 14.42
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Volume and surface area are often compared by manufacturers in order to maximize how much of something can go inside of a packag
notka56 [123]
We have no dimensions to work with. I'll pick some and try and comply with the conditions of the problem. 

Suppose you have an object that is 14 by 22 by 27 cm. These three numbers have no common factor so they cannot be reduced any further, which is helpful for this problem.

Find the Volume
Volume

l = 27 cm
w = 14 cm
h = 22 cm

V = 27 *14 * 22
V = 8316 cm^3

Find the surface area
SA = 2*l*w + 2*l*h  + 2*w*h
SA = 2*27*14  +  2*27*22   +  2*14*22
SA = 756 + 1188 + 616
SA = 2558

Just looking at these numbers The surface area is about 1/3 of the volume. I don't think this is always true.


 \frac{SA}{V} =  \frac{2*L*W  + 2*L*H + 2*W*H}{L*W*H} 

Another way to do this is to consider a cube which might give you a more useful result. 

s = L = W = H all three dimensions are equal in a cube.
The volume of a cube is s*s*s = s^3
The surface area of a cube is 2*s*s + 2*s*s + 2s*s = 6s^2

\frac{SA_cube}{V_cube} =  \frac{6s*s}{s*s*s}
\frac{SA}{V} =  \frac{6}{s}

That means whatever the side length, the Surface Area to volume = 6/the side length which is kind of an interesting result.


4 0
3 years ago
2.<br>Remove the brackets and simplify <br>a) (x + 1) + (x + 2)?​
devlian [24]

Step-by-step explanation:

✲ \text{(x + 1) + (x + 2)}

Remove the unnecessary brackets :

⇢ \text{x + 1 + x + 2}

Combine like terms. Like terms are those which have the same base. Only coefficients of like terms can be added or subtracted.

⇢ \text{x + x + 1 + 2}

⇢ \text{2x + 3}

\red{ \boxed{ \boxed{ \text{Our \: final \: answer :  \boxed{ \underline{  \tt{2x + 3}}}}}}}

Hope I helped ! ♡

Have a wonderful day / night ! ツ

▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁

4 0
2 years ago
Read 2 more answers
Write the linear equation in slope-intercept form passing through the point (0, 3) and that has a slope of 2.
Yuri [45]

Answer:

y=2x+3

Step-by-step explanation:

5 0
2 years ago
Calculate the area of area of a rectangular with a base of 10cm and a height of 6cm​
nadya68 [22]

Answer:

<em>60cm²</em>

Step-by-step explanation:

Length = 6cm

Breadth = 10cm

Area of rectangle = l×b

=( 10 ×6)cm

= <u>60cm²</u>

Hope it helps.

8 0
3 years ago
Read 2 more answers
What is the range of the function graphed below?
PilotLPTM [1.2K]

Answer:

[-4,0) ∪ [2, ∞)

Step-by-step explanation:

For piecewise function domain and range, we need to understand the difference between "(" and "["  or  ")" and "]"

  • The parenthesis ( "(" and ")" ) are used for "open circles" in the graph.
  • The brackets ( "[" and "]" ) are use for "closed circles" in the graph.

Range is the set of y-values for which the function is defined.

Now,

The upper part of the function shows the graph going from y = 2 towards infinity (arrow). At y = 2 , there is closed circle, so this part range would be

[2, ∞)  (infinity is always with parenthesis)

Now, looking at bottom part, the function is defined from 0 (open circle) to -4 (closed). so we can write:

[-4,0)

This is the range, 2nd answer choice is correct.

[-4,0) ∪ [2, ∞)

3 0
3 years ago
Read 2 more answers
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