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Ainat [17]
3 years ago
9

Which of the following is an arithmetic sequence?

Mathematics
2 answers:
Zigmanuir [339]3 years ago
6 0
The arithmetic sequence is the first one.
Anon25 [30]3 years ago
6 0

Answer:

a)-8;-6;-4;-2....

Step-by-step explanation:

Arithmetic sequence is a sequence of numbers such that the difference between the consecutive terms is constant.

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PLZ HELP ASAP!!!!!!!! Simplify. 3/5+(−1/4)/7/10 Enter your answer, in simplest form, in the boxes.
Sedbober [7]

To add fractions, find the LCD and then combine.

Exact Form:

17/70

Decimal Form:

0.2428571


5 0
3 years ago
Write the expression as the sine, cosine, or tangent of an angle.
natali 33 [55]
\bf \textit{Sum and Difference Identities}
\\ \quad \\
sin({{ \alpha}} + {{ \beta}})=sin({{ \alpha}})cos({{ \beta}}) + cos({{ \alpha}})sin({{ \beta}})
\\ \quad \\
\boxed{sin({{ \alpha}} - {{ \beta}})=sin({{ \alpha}})cos({{ \beta}})- cos({{ \alpha}})sin({{ \beta}})}

\bf cos({{ \alpha}} + {{ \beta}})= cos({{ \alpha}})cos({{ \beta}})- sin({{ \alpha}})sin({{ \beta}})
\\ \quad \\
cos({{ \alpha}} - {{ \beta}})= cos({{ \alpha}})cos({{ \beta}}) + sin({{ \alpha}})sin({{ \beta}})\\\\
-------------------------------\\\\
sin(48^o)cos(15^o)-cos(48^o)sin(15^o)\implies sin(48^o+15^o)
\\\\\\
sin(63^o)
3 0
3 years ago
Read 2 more answers
Which of these examples is an error of addition by one?
boyakko [2]

Answer:

A 43,724+ 54,263= 97,987

6 0
3 years ago
What is the distance between points a and b
nikitadnepr [17]

Answer:

6

Step-by-step explanation:

I counted

8 0
3 years ago
Read 2 more answers
Tobeg says the equation 3x + 2y= 270 and y=4/5x + 20 intersect at the point (50,60) is this true how do you know
il63 [147K]

ANSWER

Yes it is very true


<u>EXPLANATION</u>

If the two equations intersect at (50,60) then this point must satisfy the two equations.


3x+2y=270---(1)

We substitute  (50,60)  in to erquation (1)


3(50)+2(60)=270


150+120=270

270=270




y=\frac{4}{5}x+20 ---(2)


We now substitute  (50,60)  in to erquation (2) also


60=\frac{4}{5}(50)+20


60=40+20


60=60


Since the point satisfy all the two equations, it is true that they intersect at (60,50)




3 0
3 years ago
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