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4 years ago

6

If i have a wall that ishe 13ft long (160in) and I want to evenly space 12, 12 in records across the top, How much space needshu

ttle to be between each record?

1 answer:

lorasvet [3.4K]4 years ago

4 0

How big are the records?

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Show how to add 2 + 1/2 + 4/5

klemol [59]

Answer:

The answer is 3 3/10

Step-by-step explanation:

2 + 1/2 + 4/5

= 2 + 5/10 + 8/10

= 2 + 13/10

=2 + 1 3/10

= 3 3/10

8 0

3 years ago

Find the number of vertices of a prism whose cross-section is a 60-sided polygon

pychu [463]

Answer:

A prism whose cross-section is a 60-sided polygon has 120 vertices.

Step-by-step explanation:

A polygon has the same quantity of sides and vertices, as a prism has two poligonal faces, the number of vertices is double the quantity of vertices of the 60-sided polygon. That is:

$x = 2 \cdot (60)$

$x = 120$

A prism whose cross-section is a 60-sided polygon has 120 vertices.

7 0

4 years ago

How to solve (-2-2i)(-4-3i)(7+8i)

Katarina [22]

Step 1-F.O.I.L.: (-2-2i)(-4-3i)
8+6i+8i+3i^2
We know i^2=-1, so...
8+14i-3
5+14i

Step 2-F.O.I.L. again: (5+14i)(7+8i)
35+40i+98i+112i^2
35+138i-112
-77+138i

Note: "F.O.I.L." stands for "First, Outer, Inner, Last". In other words, distribute the terms of the first binomial to the other, in that order. So, (5+14i)(7+8i) should be done as follows:

5*7=56
5*8i=40i
14i*7=98i
14i*8i=112i^2

8 0

3 years ago

12+2(4+2)*3rd power?

nikitadnepr [17]

Answer: 444

Step-by-step explanation:

your welcome have a good day! ^-^

7 0

3 years ago

Read 2 more answers

thank you for hurrying here is the very last one Explain how you would find the perimeter of this triangle.

Lena [83]

Step-by-step explanation:

Use the method of TOA CAH SOH.

$tan(51.3) = \frac{opp}{adj} \\ \tan(51.3) = \frac{u}{4} \\ u = 4 \tan(51.3)$

$cos(51.3) = \frac{adj}{hypo} \\ \cos(51.3) = \frac{4}{v} \\ v \cos(51.3) = 4 \\ v = \frac{4}{ \cos(51.3) }$

Perimeter of triangle = Sum of all sides =

$u \: + \: v + 4$

5 0

3 years ago

Read 2 more answers