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3 years ago

What is the lcm of 3 and 13

Mathematics

1 answer:

Amanda [17]3 years ago

4 0

Answer: 39

Step-by-step explanation:(3, 6, 9, 12, 15, 18, . . . ) and (13, 26, 39, 52, 65, 78, 91, . . . ) respectively.

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2x+3y=-12<br> 2x+t=-16<br> X=. Y=<br> Help plz

8090 [49]

<u>To make this problem solvable, I have replaced the 't' in the second equation for a 'y'.</u>

Answer:

Step-by-step explanation:

<u>Solve the system:</u>

2x + 3y = -12 [1]

2x + y = -16 [2]

Subtracting [1] and [2]:

3y - y = -12 + 16

2y = 4

y = 4/2 = 2

From [1]:

2x + 3(2) = -12

2x + 6 = -12

2x = -18

x = -18/2 = -9

Solution:

x = -9

y = 2

8 0

3 years ago

Please someone help me...

laiz [17]

Step-by-step explanation:

First factor out the negative sign from the expression and reorder the terms

That's

$\frac{1}{ - (( \tan(2A) - \tan(6A) )} - \frac{1}{ \cot(6A) - \cot(2A) }$

<u>Using trigonometric </u><u>identities</u>

That's

<u>Rewrite the expression</u>

That's

$\frac{1}{ - (( \tan(2A) - \tan(6A) )} - \frac{1}{ \frac{1}{ \tan(6A) } } - \frac{1}{ \frac{1}{ \tan(2A) } }$

We have

<u>Rewrite the second fraction</u>

That's

Since they have the same denominator we can write the fraction as

$- \frac{1 + \tan(6A) \tan(2A) }{ \tan(2A) - \tan(6A) }$

Using the identity

<u>Rewrite the expression</u>

We have

<u>Using the trigonometric identity</u>

<u>Rewrite the expression</u>

That's

Which is

<u>Using the trigonometric identity</u>

Rewrite the expression

That's

<u>Simplify the expression using symmetry of trigonometric functions</u>

That's

<u>Remove the parenthesis </u>

We have the final answer as

As proven

Hope this helps you

6 0

3 years ago

Read 2 more answers

A group of friends on a camping trip has 3 2/5 lb of trail mix. They devide it up evenly among themselves. Each person gets 1/5

olga_2 [115]

Answer: 17 people

3/(1/5) + (2/5)/(1/5) = 3*5+2=17

6 0

3 years ago

A recipe for a blueberry dessert requires 5 cups of fresh blueberries for every 312cups of whipped cream. At this rate, how much

lozanna [386]

Answer:

A 5:3

Step-by-step explanation:

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3 years ago

Read 2 more answers

Pls help!!!! I will give brainilist

Jet001 [13]

Answer:

I dont know bhai mara majo gonna be roky

Step-by-step explanation:

no only I did u lolamavo

4 0

2 years ago