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2 years ago

9

An arithmetic sequence is defined by its 1st term a1 = 7 and the sum of the first 10 terms s10 = 25. Find the difference d of th

e sequence.

1 answer:

VARVARA [1.3K]2 years ago

3 0

Step-by-step explanation:

difference is 1.8

hope it is correct

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The library has DVDs on crime, adventure and science fiction.

kozerog [31]

Answer:

The library has 1,056 crime DVDs.

Step-by-step explanatiion:

Crime : Adventure : Science

11x : 6x : 10x

6x+384=10x

384=4x

x=96

The number of crime DVDs is 11x.

We found that x=96.

So, the number of crime DVDs the library has is equal to 11*96.

11*96=1,056.

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6 0

2 years ago

( HELP FAST PLEASE!!!!!!!!!) During her morning workout, Brennaugh does a circuit of sit-ups followed by burpees. She does four

Deffense [45]

Answer:

1 round = 4 burpees 10 sit ups

Step-by-step explanation:

1 round = 4 burpees 10 sit ups

2 round = 8 burpees 20 sit ups

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5 0

2 years ago

Read 2 more answers

PLEASE HELP ME SLOVE <br> Answers <br> A.72<br> B.6<br> C.12<br> D.4/41

Makovka662 [10]

${ \sf{ \red{using \: pythagoras \: theorem}}} \\ \\ { \sf {(20)}^{2} - {(16)}^{2} = {x}^{2} } \\ \\ { \sf{400 - 256 = {x}^{2} }} \\ \\ { \sf{144 = {x}^{2} }}$

${ \sf{x = \sqrt{144} }} \\ \\ { \boxed{ \boxed{ \green{x = 12}}}}$

option (C)

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frosja888 [35]

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marusya05 [52]

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