All categories

2 years ago

Which represents the explicit formula for the arithmetic sequence an=7-3(n-1)

Mathematics

1 answer:

yKpoI14uk [10]2 years ago

3 0

Answer:

Hi how are you doing today Jasmine

You might be interested in

Joey, Chloe and Haddie are driving go-carts around a track. Joey takes 14 minutes, Chloe takes 12 minutes and Haddie takes 10 mi

tino4ka555 [31]

3:15PM

The LCM of 10 12 and 14 is 420

420÷60=7

7 Hours after 8:15AM is 3:15PM

The LCM (Least Common Multiple) of two numbers is the smallest number that is a multiple of both.

4 0

2 years ago

The GOAL of any equation is to get the?................

marin [14]

The goal of any equation is to get the VARIABLE by itself on one side of the equation.

6 0

2 years ago

A right-angle triangle, with two sides adjacent to the right angle labeled x and y respectively, and the hypotenuse is labeled 1

Romashka [77]

Answer:

y = 6(sq rt 3)

x = 18

Step-by-step explanation:

y = (0.5)(12)(sq rt 3) = 6(sq rt 3)

x = (0.866)(12)(sq rt 3) = (10.392)(sq rt 3) = sq rt 324

reduced

x = 18

4 0

2 years ago

Select the two values of x that are roots of this equation.<br>x + 2x - 6 = 0

VLD [36.1K]

For this case we must solve the following quadratic equation:

$x ^ 2 + 2x-6 = 0$

Where:

$a = 1\\b = 2\\c = -6$

The solution is given by:

$x = \frac {-b \pm \sqrt {b ^ 2-4 (a) (c)}} {2a}$

Substituting:

$x = \frac {-2 \pm \sqrt {2 ^ 2-4 (1) (- 6)}} {2 (1)}\\x = \frac {-2 \pm \sqrt {4 + 24}} {2}\\x = \frac {-2 \pm \sqrt {28}} {2}\\x = \frac {-2 \pm \sqrt {2 ^ 2 * 7}} {2}\\x = \frac {-2 \pm2 \sqrt {7}} {2}\\x = -1 \pm \sqrt {7}$

Thus, we have two roots:

$x_ {1} = - 1+ \sqrt {7}\\x_ {2} = - 1- \sqrt {7}$

ANswer:

$x_ {1} = - 1+ \sqrt {7}\\x_ {2} = - 1- \sqrt {7}$

8 0

3 years ago

Help any one? Pls you’ve been so helpful pls don’t let it end

Leona [35]

You missed one final step, no worries! When finding the percent off, subtract the value you got after dividing the price after discount by the initial price from 100.
So: 100 - 65 = 35

35% off

Hope this helps!

5 0

3 years ago