1)What are the first four terms of the sequence represented by the expression n(n-1)-5

Answers

Answer 1

Answer: $a_n=n(n-1)-5 \n \na_1=1(1-1)-5=1 * 0-5=0-5=-5 \na_2=2(2-1)-5=2 * 1-5=2-5=-3 \na_3=3(3-1)-5=3 * 2-5=6-5=1 \na_4=4(4-1)-5=4 * 3-5=12-5=7$

The first four terms are -5, -3, 1 and 7.

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Write a slope incercept equation passes through (-3, 2) and (-2, -1)

Answers

Answer:

y = - 3x - 7

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (- 3, 2) and (x₂, y₂ ) = (- 2, - 1)

m = $(-1-2)/(-2+3)$ = $(-3)/(1)$ = - 3, thus

y = - 3x + c ← is the partial equation

To find c substitute either of the 2 points into the partial equation

Using (- 2, - 1), then

- 1 = 6 + c ⇒ c = - 1 - 6 = - 7

y = - 3x - 7 ← equation in slope- intercept form

What are some numbers that equal pie

Answers

No number is equal π since it's a irrational number, but some that are close are 3.14, 3.141593, and $(22)/(7)$

As a decimal π = 3.141 159 265 36

What is 21/45 simplified?

Answers

21÷3=7
45÷3=15
this means that 21/45 simplified is 7/15

I have 30 ones, 2 thousands ,4hundred thousands 60 ten, and 100 hundreds. What number am I?

Answers

Answer:402593

Step-by-step explanation:

402,190? ( did you acually mean 60 tens like 60 x 10 or?)

-Appari

Write each number in the rational form
a) 0.03
b) 7
show your work

Answers

a) 0.03
b) 7

That is the answer because both numbers are already in rational form.

PLEASE ANSWER!

8a - 2b + 12a -2a + 4b

Answers

Answer:

18a + 2b

Step-by-step explanation:

8a - 2b + 12a -2a + 4b Add together like terms

(8a + 12a - 2a) + (-2b + 4b) Then add the A's and B's together to get your answer

18a +2b

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