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umka2103 [35]
4 years ago
15

I need help with number 6.

Mathematics
1 answer:
Ugo [173]4 years ago
6 0
Circumference of a circle = 2πr
r being the radius
2πr = 4π
so r = 2
Surface area of a sphere = 4πr^2
Just plug 2 in for r and solve.
SA = 16π = 50.27
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Which triangle is possible?
guajiro [1.7K]

Answer:

  (a)  3 ft, 4 ft, 5 ft

Step-by-step explanation:

The triangle inequality requires the sum of the two short sides exceed the long side.

__

a) 3 ft + 4 ft = 7 ft > 5 ft . . . . . triangle is possible

b) 4 yd + 1 2/3 yd = 5 2/3 yd < 10 yd . . . . not a possible triangle

c) 3 ft + 3 ft = 6 ft < 7 ft . . . . not a possible triangle

d) 4 in + 4 in = 8 in . . . . not a possible triangle (not greater than 8 in)

__

The first set of side lengths can form a triangle: 3 ft, 4 ft, 5 ft.

7 0
2 years ago
Select the correct answer Which equation represents a line that is perpendicular to line MN?
taurus [48]

Answer:

D. y = 4x - 6

Step-by-step explanation:

The equation that is perpendicular to the line MN should have a slope that when multiplied by the slope of line MN will result to negative one. Therefore,

Therefore,

m₁ × m₂ = -1

Using the 2 coordinates of MN let's find the slope,

(-7, 6)(5, 3)

Therefore,

m₁ = 3 - 6 / 5 - (-7) = -3 / 12 = - 1 / 4

The equation that represent a line perpendicular to the line MN is

y = 4x - 6 because the slope slope(m₂) is 4.

From our formula,

4 × - 1 / 4 = - 1

So, option D meets the requirement.

6 0
3 years ago
If a study determines the difference in average salary for subpopulations of mechanical engineers and civil engineers is NOT sig
uysha [10]

Both are not earning different salaries.

If a study determines the difference in average salary for subpopulations of mechanical engineers and civil engineers is NOT significant, then the subpopulations of mechanical and civil engineers are not earning different salaries.
Study determines that there is not any significant study so thats why both are not earning.


Learn more about average median on:

brainly.com/question/14532771

#SPJ10

3 0
2 years ago
Which expression is equivalent to 5(2 + 7)?
bogdanovich [222]
By using distributive property we get
5(2)+5(7)
Therefore you answer is D. 5(2)+5(7)
3 0
3 years ago
Read 2 more answers
1. S = 10 mm<br> V= S×S×S<br> =___×___×___<br> =____ mm3<br><br>​
Minchanka [31]

Hi there!  

»»————- ★ ————-««

I believe your answer is:  

V=1000\text{mm}^3

»»————- ★ ————-««  

Here’s why:  

⸻⸻⸻⸻

I am assuming by the infomation given that the figure is a cube.

⸻⸻⸻⸻

\boxed{\text{Finding the volume of the cube...}}\\\\S = 10mm; V= s^3\\--------------\\\rightarrow V = 10^3\\\\\rightarrow V = 10 * 10 * 10\\\\\rightarrow \boxed{V=1000\text{mm}^3}

⸻⸻⸻⸻

»»————- ★ ————-««  

Hope this helps you. I apologize if it’s incorrect.  

3 0
3 years ago
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