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emmainna [20.7K]
3 years ago
9

Help pls !! what is the value of K ?

Mathematics
1 answer:
Fofino [41]3 years ago
6 0
The values of K is 10
Hope this helps:)
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I need help please.
IgorLugansk [536]

Answer:

13 - 17\sqrt{11}

Step-by-step explanation:

Using the rule

\sqrt{a} × \sqrt{a} = a

Each term in the second factor is multiplied by each term in the first factor, that is

2\sqrt{11} (\sqrt{11} - 9 ) + 1 (\sqrt{11} - 9 )

Distribute both parenthesis

= (2 × 11) - 18\sqrt{11} + \sqrt{11} - 9

= 22 - 17\sqrt{11} - 9

= 13 - 17\sqrt{11}

7 0
3 years ago
The two spheres above have the same center. One has a radius of 4 cm, and the other has a radius of 5 cm. Approximately how much
frozen [14]
Volume a sphere: [4/3]π(r^3)

Space between the spheres = Volume of the larger sphere - Volume of the smaller sphere

= [4/3]π (R^3) - [4/3π](r^3) = [4/3]π(R^3 - r^3) = [4/3]π {(5cm)^3 - (4cm)^3} =

= 255.5 cm^3

Answer: 255.5 cm^3
8 0
3 years ago
Help (this for a friend)<br> a 62.1<br> b 117.4<br> c 122.1<br> d 164.5
kramer

Answer:

c. 122.1 cm

Step-by-step explanation:

so l * w + \frac{\pi r^2}{2}

since 6 cm is the diameter

6/2 = 3

the radius (or r) is 3

so 18 * 6 + \frac{3.14 * 3*3}{y}

108 + \frac{3.14*9}{y}

108 + \frac{28.26}{2}

108 + 14.13 = 122.13

simplified: 122.1 cm

hope this helps:)

4 0
2 years ago
Read 2 more answers
If x = 3 cm and y = 2cm, what is the perimeter of the polygon
Virty [35]
Do you have a picture?? Maybe? I’m not good at these
4 0
3 years ago
What is the inverse of the following statement? If it is night, the street lights will come on. Select the best answer from the
marshall27 [118]

ANSWER

C. If it is not night, then the street lights will not come on.

EXPLANATION

The given statement is

"If it is night, then the street lights will come on"

Given the statement,

"If p, then q",

then the inverse of this statement is

"If it is not night,then the street lights will not come on"

"If not p, then not q"

The correct choice is C.

3 0
3 years ago
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