Ask question

Ask question

All categories

3 years ago

8

Write y=-3x^2+12x-21 in vertex form

2 answers:

tensa zangetsu [6.8K]3 years ago

6 0

The vertex form of any function is : <span>f(x) = a(x-h)^2 + k
Hence the correct option would be: A): "</span><span>-3(x-2)^2-9</span>"

riadik2000 [5.3K]3 years ago

5 0

Complete the square:
<span>y = 3x^2 - 12x + 4 </span>
<span>y = 3(x^2 - 4x) + 4 </span>
<span>y = 3(x^2 - 4x + 4 - 4) + 4 </span>
<span>y = 3(x^2 - 4x + 4) - 12 + 4 </span>
<span>y = 3(x - 2)^2 - 8</span>

You might be interested in

Hi can someone please help i only have a few hours to do this please help

Sonja [21]

(4,1) because it is the ordered pair that passes through the line

5 0

2 years ago

Read 2 more answers

The number of bus riders was recorded on one route. The data have these values: minimum = 18, lower quartile = 22, median = 26,

Ber [7]

Answer: A

Step-by-step explanation: Because I got it wrong and it said it said it was A

4 0

3 years ago

Read 2 more answers

Consider the following pair of equations:

Aloiza [94]

Y = 3x + 3 this is equation 1
y = x -1 this is equation 2
since equation 1 and 2 already defined y in terms of x, we're just gonna substitute y into the other equation. as 2 is shorter I'm going with that today
x - 1 = 3x +3
-1 - 3 = 3x - x
-4 = 2x
x = -2
now we've got x just sub it in equation 2
y = -2 -1
y = -3
so the answer is (-2,-3)

5 0

2 years ago

Express secΦ in terms of tanΦ

Sunny_sXe [5.5K]

Answer:

$\sec\theta=\sqrt{1+\tan^2\theta}$

Step-by-step explanation:

The trigonometric identity is :

$\sec^2\theta-\tan^2\theta=1\\\\or\\\\\sec^2\theta=1+\tan^2\theta$

We need to express secθ in terms of tanθ.

The above equation becomes,

$\sec\theta=\sqrt{1+\tan^2\theta}$

Hence, this is the required solution.

5 0

3 years ago

15x5x3 find the volume with lxwxh

anygoal [31]

Answer:

225 units^3

Step-by-step explanation:

15x5x3 = 225

hope this helps, pls mark brainliest :D

6 0

3 years ago

Read 2 more answers