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3 years ago

A pattern is describe by an= 3n -5 what are the first four ters of the sequence?

Mathematics

1 answer:

Allisa [31]3 years ago

8 0

9514 1404 393

Answer:

-2, 1, 4, 7

Step-by-step explanation:

Start with n=1. Put the value where n is in the expression and do the arithmetic.

a1 = 3·1 -5 = -2

a2 = 3·2 -5 = 1

a3 = 3·3 -5 = 4

a4 = 3·4 -5 = 7

You may notice that each term is 3 more than the previous one.

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A store sells used DVDs for 8$ each and used videotapes for $6 each. the function rule 8d+6v can be used to represent the total

Nesterboy [21]

If you were to buy 5 DVDs and 3 videotapes, For 5 DVDs, it would be $40 for 5 DVDs, and $18 for 3 videotapes. I hope this helps :)

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3 years ago

Please help! Thank you if you do :)

Kruka [31]

Step-by-step explanation:

A(-5,1) and B(0,4)

$m \: = \: \frac{y2 - y1}{x2 - x1}$

X1=0 , Y1=4 X2= -5 , Y2=1

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2 years ago

The intersection of two planes can be a line true or false

Gennadij [26K]

True.

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8 0

3 years ago

What is the coefficient of q in the sum of these two expressions?<br><br> (23q – 34) and (–16q – r)

Zigmanuir [339]

Answer:

The coefficient of q is 7

Step-by-step explanation:

The two expressions are

(23q – 34) and (–16q – r)

and .

(–16q – r)

The sum of the two expressions is

23q - 34 + -16q - r

When we group like terms the expression will be,

=23q - 16q - r - 34

When we simplify the expression will now be

=7q - r - 34

The coefficient of q is the constant behind q in the expression.

The coefficient of q is therefore 7.

5 0

2 years ago

Find the value of a. A. 52 B. 26 C. 104 D. 93.5

Shtirlitz [24]

Answer:

Option (A)

Step-by-step explanation:

To find the value of 'a' we will use the tangent-chord theorem,

"Angle formed by the chord and a tangent to the circle measure the half of the intercepted minor arc"

Angle 'a' is formed between the chord and the tangent.

Measure of the intercepted arc = (2 × 52)°

Therefore, measure of the angle 'a' = $\frac{104}{2}$

a = 52°

Therefore, Option (A) will be the correct option.

8 0

3 years ago

Read 2 more answers