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2 years ago

What is the surface area of this design?

Mathematics

1 answer:

fomenos2 years ago

6 0

Answer:

$392\:in^2$

Step-by-step explanation:

Hey there!

Surface area:

$2(10)(6)+2(6)(6)+2(6)(4)+2[(10)(10)-(4)(6)]$

$= 392\:in^2$

Hope this helps!

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I need help asap please

rjkz [21]

Answer:

$x = -\frac{3}{2}$ or $x = 1$

Step-by-step explanation:

Using the zero product property, first step is to set the given equation, $2x^2 + x - 1 = 2$ , to zero. Then factorise the left side.

Thus,

$2x^2 + x - 1 = 2$

Subtract 2 from both sides

$2x^2 + x - 1 - 2 = 2 - 2$

$2x^2 + x - 3 = 0$

Factorise the left side

$2x^2 + 3x - 2x - 3 = 0$

$x(2x + 3) - 1(2x + 3) = 0$

$(x - 1)(2x + 3) = 0$

Find the solution

$x - 1 = 0$

$2x + 3 = 0$

$x = 1$

$2x + 3 = 0$

$2x = -3$

$x = -\frac{3}{2}$

The answer is: $x = 1$ or $x = -\frac{3}{2}$

3 0

3 years ago

What are the volume formulas for the listed shapes: Cylinder, Cone and Sphere.

sesenic [268]

Cylinder: V = $\pi r^{2} h$

Cone: V = $\pi r^{2} h /3$

Sphere: V = $4 \pi r^{3} /3$

8 0

2 years ago

Read 2 more answers

the coordinates of a pentagon ABCDE are A(-5,4),B (1,4),C(1,-1), D(-2,-5) and E(-5,-1) what is the perimeter of the pentagon

kogti [31]

Perimeter is a continuous line forming the boundary of a closed geometrical figure. perimeter of a pentagon = AB+BC+CD+DE+EA (that is 5 sided figure)
so my plan is easy but effective, calculate all those distances using those coordinates with the aid of distance formular. then you add those distances algebraically .

7 0

3 years ago

Read 2 more answers

The center of rotation is point P. Which describes the rotation of ΔABC to form ΔA'B'C'?

MrRissso [65]

It's easy what do you think

7 0

3 years ago

2: Write out a system of equations that has infinite solutions. Explain why it has infinite

Rasek [7]

Answer:

Below!

Explanation:

A system of equations with infinite solutions defines that both the equations are identical and are overlapping when the lines are graphed. An example could be y = 5x + 9 and y = 5x + 9. These sets of equations have infinite solutions because they are the same and when graphed, they overlap.

Hoped this helped!

4 0

2 years ago