Which equation matches the sentence?

1 answer:

4 0

Hello,

1: 9n-3=21 ==>B

2: 3n+9=21 ==>A

3: 9n-3=21 ==>B

4: 3n-9=21 ==>C

I wish to have understood all those sentences.

You might be interested in

Round to the nearest ten and hundred.363

Brut [27]

The nearest ten is 400 and the hundred is 300

6 0

3 years ago

Read 2 more answers

A linear function is represented below.

Alex777 [14]

Answer:

y intercept = -5 & x slope = 4

Step-by-step explanation:

To find the x-intercept of a given linear equation, plug in 0 for 'y' and solve for 'x'. To find the y-intercept, plug 0 in for 'x' and solve for 'y'. In this tutorial, you'll see how to find the x-intercept and the y-intercept for a given linear equation.

there i hopes it helps

8 0

3 years ago

Read 2 more answers

Given f(x) = x2 - 10x + 22, what is the domain of f

Lesechka [4]

<h2><u>Answer:</u></h2><h2>Polynomials have the domain of all Reals. Plugging any Real number into the equation will give you a value. </h2><h2>Domain = {x|x∈R}</h2><h2><u></u></h2><h2><u> Step-by-step explanation:</u></h2><h2>The range is dependent on the curve itself. The axis of symmetry for this function is</h2><h2>x = -b/2a = -1(-10)/2(1) = 10/2 = 5 </h2><h2>The vertex is F(5) = (5)2 + (-10)(5) + 21 = 21 -50 + 21 = -8</h2><h2>Since the leading coefficient is positive, the parabola opens up and the vertex (5,-8) is a local minimum. It turns out to be an absolute minimum too so the Range = {x|x∈R, x≥-8}</h2>

<h2><u>Thank you</u></h2><h2><u>sunshinemadison101</u></h2>

4 0

3 years ago

N a soccer game, Sally kicks the ball to a teammate who is on the other side of the field. The ball's height h (in feet above th

tresset_1 [31]

Answer:

At the time that it is kicked, the ball is on the ground, that is, it's height is 0 feet.

Step-by-step explanation:

The height of the ball after t seconds is given by the following equation:

$h(t) = -2t^{2} + 10t$

What is the height of the ball at the time it is kicked?

The ball is kicked at t = 0.

So we have to find h(0)

$h(0) = -2*0^{2} + 10*0 = 0$

At the time that it is kicked, the ball is on the ground, that is, it's height is 0 feet.

8 0

4 years ago

Martina purchased a prepaid phone card for $20. Long distance calls cost 24 cents a minute using this card. Martina used her car

VladimirAG [237]

Find amount used:
Amount in the card = $20
Amount left = $13.28
Amount used = $20 - $13.28 = $6.72

Find duration of the call:
24 cents = 1 min
672 cents = 1/24 x 672 = 28 mins

Answer: The call was 28 minutes long.

5 0

4 years ago

Read 2 more answers