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2 years ago

Write the explicit formula for the arithmetic sequence. 2, -2, -6, -10, -14, ...

Mathematics

1 answer:

melisa1 [442]2 years ago

4 0

2-6=4/8 but I’m not really sure though

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Determine if -8T- 20 = 4(-2T -5) has one solution, infinitely many solutions, or no solution

AnnZ [28]

Answer:

infinitely many solutions

Step-by-step explanation:

-8T- 20 = 4(-2T -5)

Distribute the 4

-8T- 20 = (-8T -20)

Add 8T to each side

-8T+8T- 20 = (-8T+8T -20)

-20 = -20

Since this is a true statement, there are infinitely many solutions

8 0

2 years ago

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Find sin(a+B)

diamong [38]

Answer:

Cos A=5/13

we have

Cos² A= $1-Sin ²A$

25/169=1-Sin²A

sin²A=1-25/169

sin²A=144/169

Sin A= $\sqrt{144/169}=12/13$

again

Tan B=4/3

P/b=4/3

p=4

b=3

h= $\sqrt{3²+4²}=5$

Now

Sin B=p/h=4/5

in IV quadrant sin angle is negative so

Sin B=-4/5

CosB=b/h=3/5

Now

Sin(A+B):sinAcosB+CosAsinB

now 

substitute value

Sin(A+B):12/13*3/5+5/13*(-4/5)=36/65-4/13

=16/65 is a required answer

6 0

2 years ago

Please help will mark brainliest! (random answers will be reported)

Sever21 [200]

Answer:

Step-by-step explanation:

Sorry if I am incorrect!

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2 years ago

Line x and line z are straight lines. which pair of angels are vertical.

Arlecino [84]

Angles c and e are vertical

7 0

3 years ago

Which one is the coldest AMD why

igor_vitrenko [27]

Answer:

Raleigh.

Step-by-step explanation:

Just look for the Fahrenheit with the smallest number.

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2 years ago

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