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arlik [135]
3 years ago
5

Let f (x) = x^2 - 6x - 27

Mathematics
1 answer:
aniked [119]3 years ago
4 0

Answer:

x = 9

x = 3

Step-by-step explanation:

find the roots of x² - 6x - 27 = 0

by factorization (or use any of your favorite methods for solving quadratic equations):

x² - 6x - 27 = 0

(x-9)(x+3) = 0

Hence,

(x-9) = 0  --------> x = 9

or

(x+3) = 0  --------> x = -3

You might be interested in
How do you solve 192 divided by 3/4
Basile [38]

Answer:

256

Step-by-step explanation:

so the basic problem is 192 divided by 3/4, so you flip the second fraction around. So the problem is now 192*4/3.

SIMPLIFY

192/3 is 64, and then you times 64 to 4, which equals 256

Hope it helped!

6 0
3 years ago
Please help i will give brainliest to the first person that answers correctly
timurjin [86]

Answer:

From what i know your answer will be a.

6 0
3 years ago
The sum of an infinite geometric series is 450, while the common ratio of the series is 4/ 5 . What is the first term of the ser
pogonyaev

Answer:

answer is 90 for first term

Step-by-step explanation:

Let the terms be  

First term x

We will use the formula s∞=x/1−r to find the sum of an infinite geometric series, where −1<r<1.  

We know the sum and the common ratio, so we'll be solving for x where r =4/5

s∞=x/1−r

450=x/1−4/5

450=x/1/5

450=5x

x=90

this is the first term x1 = 90

we know that common ratio is 4/5, so multiplying the first term by factor 4/5 to get the second term  

90 x 4/5=   72 second term  

7 0
3 years ago
Read 2 more answers
40 POINTS!!!!!!!! NEED HELP
aniked [119]
Where is the grid are u gonna take a pic?
6 0
3 years ago
I can’t really understand this can someone help<br> Me?
topjm [15]
The answer is 4/5 because there are 20 in total squared and circles but the total shapes is 25 so simplify the fraction 20/25=4/5
6 0
3 years ago
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