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3 years ago

Pls help fast !!!!!!!!!!!!!!!!!!!!!!!!

Mathematics

2 answers:

Sergeeva-Olga [200]3 years ago

4 0

Answer:

$\frac{2}{3}$

Step-by-step explanation:

⅓×2

When multiplied by 2 will be;

$\frac{1}{3} \times \frac{2}{1}$

So you 2×1=2

3×1 is equal to 3

So the final answer will be;

$\frac{2}{3}$

horsena [70]3 years ago

3 0

Answer:

2/3

Step-by-step explanation:

1/3 × 2/1

1 × 2/ 3× 1

= 2/3

hope it helps!

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PLs help me with this question!!!!!!!!

Julli [10]

Answer:

The answer is D - 382

Step-by-step explanation:

The volume of a sphere can be calculated using this simple formula:

V = 4/3 x 3.14(pi) x r cubed(to the third)

So, V = 4/3 x 3.14 x 4.5 cubed

V = approximately 382

7 0

3 years ago

Read 2 more answers

13 + 2k = 3k + 4(k - 3)

Trava [24]

Answer:

k=5

Step-by-step explanation:

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4 years ago

When three or more numbers are added, the sum is the same regardless of the grouping. Which property is this Associative, Commut

lakkis [162]

Associative property. Hope this helps!

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2 years ago

The lengths of 2 sides of a triangle are 26 and 48. What is the range of possible side lengths for the 3rd side of the triangle?

iVinArrow [24]

Answer:

Step-by-step explanation:

If you add the 26 and 48 you get 74 and then you subtract 74 from 90 since your total needs to be 90 and get your answer of 16

3 0

3 years ago

Hello everyone, could you please solve this problem step by step. I don't have the exact solution and there are no options for i

lara31 [8.8K]

Answer:

The area of the shaded part = 61.46

Step-by-step explanation:

Assume the hypotenuse of the triangle is c (c>0)

As the triangle inscribed in the semi circle is the right angle triangle, its hypotenuse is equal to the diameter of the circle.

The hypotenuse of the triangle can be calculated by Pythagoras theorem as following: $c^{2} =a^{2} +b^{2} =(2\sqrt{5}) ^{2} + (4\sqrt{5}) ^{2} = 20 + 80 = 100$

=> c = 10

So that the semi circle has the diameter = 10 => its radius = 5

The total area of 2 semi circles is equal to the area of the circle with radius =5

=> The total area of 2 semi circles is: $\pi$ x $5^{2}$ = 25 $\pi$

The area of a triangle inscribed in the semi circle is: 1/2 x a x b = 1/2 x $2\sqrt{5\\$ x $4\sqrt{5}$ = 20

=> The area of 2 triangles inscribed in 2 semi circles is: 2 x 20 = 40

The area of the square is: $c^{2}$ = $10^{2} =100$

It can be seen that:

The area of the shaded part = The area of the square - The total area of 2 semi circles + The total are of 2 triangles inscribed in semi circles

= 100 - 25 $\pi$ + 40 = 61.46

6 0

3 years ago