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tensa zangetsu [6.8K]
3 years ago
14

I need the answer ASAP

Mathematics
2 answers:
Karo-lina-s [1.5K]3 years ago
8 0

Answer:

Just less than 3.11

Step-by-step explanation:

Actually, this problem doesn't have a single answer.  Rather, you are asked to use estimation and educated guesses to determine the length of one side of the middle cube.  

Note that the volume of the first cube is 3^3 = 27, and that the vol. of the third cube is 4^3 = 64.  So we can see right away that all sides of the middle cube have a length which is between 3 and 4.

Suppose I picked s = 3.5 out of the blue and then cubed it:  3.5^3 = 42.875 cubic units.  Much too big!  So try s = 3.25:  3.25^3 = 34.33.  Better, but still too big.  We want a side length that gives us the volume 30 for this middle cube.

Try 3.2^3:  volume is 32.8 (too big)

Try 3.1^3:  vol. is 29.8 (too small)          Try a value slightly larger than 3.1:

Try 3.12^3:  vol. is 30.37 (slightly too large)

Try 3.115^3:  vol. is 30.3 (better, but still slightly too large)

Try 3.113^3:  vol. is 30.2 (better still, but keep on going!)

You'll find that the correct side length is between 3.113 and 3.106.


Orlov [11]3 years ago
3 0
And that’s what you do

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How do I work this out and what's the answer?​
rodikova [14]

Answer:

66 degrees! Hope it Helps!!!!

Step-by-step explanation:

So the total angle amount of a square is 360

lets first figure out what x is...

angle B and angle D is equal, forming a equation.

6x-96=3x

simplify that...

x=32

Now pluggin x into the equation (6x-96)&(3x)

96 and 96

Now add all the angles forming this equation: (?+102+96+96=360)

?=66

4 0
2 years ago
The rectangle below is dilated by a scale factor of 1/3. Find the perimeter and area of the rectangle below.
Dmitrij [34]
For perimeter you add up the two sides so 15 + 21 equals 36
4 0
2 years ago
The sum of Two numbers is 9. The<br> sum of the squares of the numbers is<br> 41. Find the numbers.
Tju [1.3M]

Answer:

4 and 5

Step-by-step explanation:

Assuming your 2nd sentence should be: "The sum of the squares of the two numbers is 41"

X + Y = 9   {equation 1}

X² + Y² = 41  {equation 2}

from equation 1:  y = 9-x

Substitute that into equation 2

x² + (9-x)² = 41

x² + 81 - 18x + x²= 41

2x² - 18x + 40 = 0

We can factor out a 2

x² - 9x + 20 = 0

(x-5)(x-4) = 0

x = 5 or 4

checking

Your two numbers are 4 and 5

4² + 5² 

= 16 + 25

= 41

3 0
2 years ago
Please help with maths!!!
zimovet [89]
It is the angle where it says "A".

8 0
2 years ago
Which points in the figure below are coplanar with points A and B
OleMash [197]
<h3>Answer: A) D and H</h3>

These two points are on the front panel along with points A and B

Choice B is not the answer since points A,B,F are on the floor panel, but point I is not on the floor panel (instead its on the right wall panel)

Choice C is not the answer as points G and C are in the ceiling panel, while A and B are in the floor panel and front wall panel.

Choice D is not the answer for similar reasoning as choice B not being the answer.

Points are considered coplanar if they are in the same plane. A plane can be thought of as a flat piece of paper that does not bend or curve.

8 0
2 years ago
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