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RSB [31]
2 years ago
5

Help guys I need this

Mathematics
1 answer:
velikii [3]2 years ago
4 0

Answer:

768 Square Inches

Step-by-step explanation:

10x18 = 180 (2 rectanlge faces)

12x8 = 96 (2 triangles)

12x18 = 216 (bottom face)

216 + 96(2) + 180(2) =

768

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EASY !! <br> Pls Answer!!<br> I’ll mark you as the brainiest!!
hoa [83]

Given:

The diameter of a sphere is 19 cm.

To find:

The volume of the sphere.

Solution:

We have,

Diameter=19\text{ cm}

Radius=\dfrac{19}{2}\text{ cm}

The volume of the sphere is

V=\dfrac{4}{3}\pi r^2

where, r is radius.

Putting \pi=\dfrac{22}{7}, r=\dfrac{19}{2} in the above formula.

V=\dfrac{4}{3}\times \dfrac{22}{7}\times (\dfrac{19}{2})^3

V=\dfrac{4}{3}\times \dfrac{22}{7}\times \dfrac{19}{2}\times \dfrac{19}{2}\times \dfrac{19}{2}

V=\dfrac{75449}{21}

V=3592.80952

V\approx 3592.8

Therefore, the volume of the sphere is 3592.8 sq. cm.

5 0
2 years ago
All sides of quadrilateral ABCD ABCD A, B, C, D are tangent to circle PPP. What is the perimeter of the quadrilateral below?
noname [10]

Answer:

The answer is below

Step-by-step explanation:

A tangent is a line which touches a circle at one point. The angle between a tangent and a circle is 90°.

The two tangent theorem states that tangent that meet at the same point are equal in length.

Therefore:

CD = c + d

but c = 5.1, hence:

CD = 5.1 + d

12.1 = 5.1 + d

d = 7

AD = a + d; but AD = 12.2, d = 7

12.2 = a + 7

a = 5.2

AB = a + b; but b = 3.3

AB = 5.2 + 3.3 = 8.5

BC = b + c = 3.3 + 5.1 = 8.4

Perimeter of ABCD = AB + BC + CD + AD = 8.5 + 8.4 + 12.1 + 12.2 = 41.2

4 0
3 years ago
Determine the factors of 4x2 5x − 6 a(4x − 2)(x 3) b(4x − 3)(x 2) c (4x − 6)(x 1) d(4x − 1)(x 6)
Lelu [443]
4x^2 + 5x - 6 = (4x - 3) (x + 2)

You can do it by using the quadratic function to solve 4x^2 + 5x - 6 = 0; the result will be x = 3/4 and x = -2

Then you have to make (x- 3/4) = 0 and (x +2 ) = 0

When you develop x - 3/4 = 0 you get 4x -3 = 0, which means that 4x - 3 is a factor. The other factor is directly x + 2.

Answer: option b: (4x -3)(x + 2)
8 0
3 years ago
Read 2 more answers
What is 2+2.8/2.45*5.654=
alekssr [168]
8.4617....

Hope this helped you :)
6 0
3 years ago
Read 2 more answers
-8x^2-3x+5+2x^2+7x-5
denis-greek [22]
-6x^2+4x

my reasoning:
eliminate the opposites (5 & -5)
collect the like terms (-8x^2 & + 2x^2)
collect the like terms again (-3x &+7x)
8 0
3 years ago
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