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3 years ago

wright down in terms of n, an expression for the nth term of the following sequences: a) 12,10,8,6,4 b) 25,20,15,10,5

Mathematics

1 answer:

Arturiano [62]3 years ago

3 0

Answer:

a) $a_{n}$ =−2n+14

b) $a_{n}$ = − 5 n + 30

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Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s). Consider the ex

irina1246 [14]

Answer:

-2, 6

Step-by-step explanation:

(x - 6)(x + 2) = 0

x - 6 = 0 x+ 2 = 0

x = 6 x = -2

The values of x that would result in the given expression being equal to 0, in order from least to greatest, are -2 and 6.

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3 years ago

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What is the expanded form of .039

Nikitich [7]

Answer:

0.039

Step-by-step explanation:

Expanded Notation Form:

0.039 =

+ 0.0

+ 0.03

+ 0.009

Expanded Factors Form:

0.039 =

0 × 1

+ 0 × 0.1

+ 3 × 0.01

+ 9 × 0.001

Expanded Exponential Form:

0.039 =

0 × 100

+ 0 × 10-1

+ 3 × 10-2

+ 9 × 10-3

Those are the way you can express .039 in different expanded forms

Hope this helps

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3 years ago

A radio station requires DJs to play 4 commercials for every 36 songs they play. What is the unit rate of songs to commercials?

elena55 [62]

Answer:

The correct answer for this question is that the unit rate is 5:1.

Step-by-step explanation:

We can work this out by simplifying down the 2 commercials to every 10 songs ration, so that 10:2 becomes 5:1. We can work this out by halving the original ratio to simplify it.

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4 years ago

Mia found the relationship between the quantities in the table. Her work is shown below. Multiply x by 5 to get y. A 2-column ta

balandron [24]

Answer:

Step-by-step explanation:

8 0

3 years ago

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PLEASE PLEASE HELP YA'LL 3RD TIME POSTING AND REALLY NEED HELP!!!! NO LINKS ALLOWED!!

Lilit [14]

Answer:

Step-by-step explanation:

Rotation 90 degrees counter clockwise rule (x,y) -----> ( -y , x )

In order to find the answer we must first find the coordinates of the pre image

The coordinates are...

x (1,-1)

y (4,-1)

z (4,-4)

Now we apply the rule stated previously

( The rule explanation: the x and y values swap and the y values sign changes. So if the y value was previously positive, after a 90° counter clockwise rotation, the y value will then be negative)

x (1,-1) -----> swap x and y values ( -1,1) ------> flip sign of new x value ( 1 , 1 )

y (4,-1) ------> swap x and y values ( -1,4) -----> flip sign of new x value ( 1 , 4 )

z (4,-4) -----> swap x and y values ( -4,4) ------> flip sign of new x value ( 4,4)

the new coordinates are X' (1,1) , Y' (1,4) , Z (4,4)

Hence the answer is C

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3 years ago

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