1 year ago

Which of the following is an arithmetic sequence?

1 answer:

6 0

$-8~~,~~\stackrel{-8+2}{-6}~~,~~\stackrel{-6+2}{-4}~~,~~\stackrel{-4+2}{-2}\qquad \begin{cases} a_1=-8\\ d = +2 \end{cases}$

You might be interested in

I need help with the number line part a is done already

algol [13]

Hi! Going from equation one, you should put your starting point at negative 10. Then make an over-arrow over to negative five showing where you added five. After this, make another arrow from negative five to seven. Then you’re done! Hope this helps!

6 0

2 years ago

Given the following formula, solve for t. V = ut at OA. ย + 1 t 1 B. いま O C. t a(v – u) OD. t = a(v + a) Re

gizmo_the_mogwai [7]

Answer:

$\frac{v - u}{a} = t$

Step-by-step explanation:

Given

$v = u + at$

Required

Solve for t

$v = u + at$

Subtract u from both sides

$v - u = u - u + at$

$v - u = at$

Divide both sides by 1

$\frac{v - u}{a} = \frac{at}{a}$

$\frac{v - u}{a} = t$

$t = \frac{v - u}{a}$

3 0

2 years ago

Find the coordinate of the vertex of the following parabola algebraically!<br> y=-4x² – 20

tester [92]

Answer:

The vertex of a parabola is found by

'h' position = -b / (2 * a) = 0 / 2 * -4 = 0

'y' position = ah^2 + bh + c = -4*0 + 0 -20

vertex = (0, -20)

Step-by-step explanation:

5 0

2 years ago

The inverse of the function f(x) = x + 10 is shown.

IgorLugansk [536]

Answer:

So, the answer is 20

Step-by-step explanation:

$f(x) = \frac{1}{2} x + 10 = = = > \\ f(x) - 10 = \frac{1}{2} x = = = > \\ 2f(x) - 20 = x = = = > \\ {f}^{ - 1} (y) = 2y - 20 = = = > {f}^{ - 1} (x) = 2x - 20$

7 0

1 year ago

Simplify. assume that all variables represent positive real numbers.

m_a_m_a [10]

Prime factor 396
2*2*3*3*11 = 396
So then 2*3 = 6 can be factored out of the sqrt from 396 leaving 11. half of the even exponent can also be factored out. since y has odd exponent one y will be left in sqrt.
= - 6 x^4 y^9 sqrt(11y)

6 0

2 years ago