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3 years ago

Using trig to find a side. help please !

Mathematics

1 answer:

Alex Ar [27]3 years ago

6 0

Answer:

The length of LM to the nearest tenth of a foot would be 11.7

Step-by-step explanation:

Using the law of sines (b = c·sin(B)/sin(C)) you would plug in your missing values

x=7*sin(59)/sin(31)

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Convert the fraction 1/3 into a repeating decimal

den301095 [7]

Answer:

0.33 with the bar on top

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

A curious patterns occurs in a group of people who all shake hands with one another. It turns out that you can predict the numbe

ycow [4]

Missing part of the question

Determine the number of handshakes, i, that will occur for each number of people, n, in a particular room. (people)

Answer:

$S_n = \frac{n}{2}(n - 1)$

Step-by-step explanation:

Given

For 5 people

$\begin{array}{cc}{People} & {Handshakes} & {5} & {4} & {4} & {3} & {3} & {2} & {2} & {1} & {1} & {0} &{Total} & {10} \ \end{array}$

Using the given instance of 5 people, the number of handshakes can be represented as:

$(n - 1) + (n - 2) + (n - 3) + ........ + 3 + 2 + 1 + 0$

The above sequence is an arithmetic sequence and the total number of handshakes is the sum of n terms of the sequence.

$S_n = \frac{n}{2}{(T_1 + T_n})$

Where

$T_1 = n - 1$ --- The first term

$T_n = 0$ --- The last term

So:

$S_n = \frac{n}{2}(n - 1 + 0)$

$S_n = \frac{n}{2}(n - 1)$

7 0

2 years ago

Hi help me please, I can't seem to figure this one out

Nastasia [14]

Answer:

x= 2.73cm

For the same angle we just work out 1cm first.

a^2+ b^2= c^2

0.82^2 + b^2 = 1^2 = changing to units 10

6.724 + b^2 = 10

10-6.724 = 2.276

Then x 3 and change units down by 10= 0.6828

Step-by-step explanation:

Below shows why we must convert to mm from cm

a^2+ b^2= c^2

0.82^2 + b^2 = 1^2 =

0.6724 + b^2 = 1

1 - 0.6724 = b = 0.2276

0.2276 x 3 = 0.6828 cm

7 0

3 years ago

Someone please help me! Consider the following data set: 3, 4, 6, 7, 9, 9, 11

Korolek [52]

The range is 11- 3 = 8 Adding 5 would not affect the range.

4 0

3 years ago

(4 + y = 19) what is y

Fiesta28 [93]

4 + y = 19

y = 19 - 4

y = 15

5 0

3 years ago