3 years ago

Rewrite the function by completing the square f(x)=x^2-4x-26

Mathematics

1 answer:

leonid [27]3 years ago

8 0

Answer:

(x - 2)² - 30

Step-by-step explanation:

To complete the square

add/subtract ( half the coefficient of the x- term )² to x² - 4x

f(x) = x² + 2(- 2)x + 4 - 4 - 26 = (x - 2)² - 30

You might be interested in

WILL MARK BRAINLIST!!!!

Lesechka [4]

Answer:

Step-by-step explanation:

I had this answer

8 0

3 years ago

Read 2 more answers

Solve for a 2.5+5a=3a+10.5

Oksi-84 [34.3K]

Answer:

a = 4

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Ben can type 2/5 of a page of an essay in 1/2 minute. How much time would

DiKsa [7]

Answer:

1.25 minutes, or 1 minute 15 seconds

Step-by-step explanation:

We know that is speed is 0.4 pages per 0.5 minutes. This is 0.8 pages per 1 minute. If we divide 1/0.8, we get 1.25 or 1 minute 15 seconds.

4 0

2 years ago

Read 2 more answers

Write an equation in point-slope form of the line that passes through the point (9,0) and has a slope of m=-3 .

aksik [14]

Answer:

$y = - 3x + 27$

Step-by-step explanation:

The standard form for the equation of the line is

$y = mx + c$

Recall that:

$y = 0 \: \: \: x = 9 \: \: \: m = - 3 \\ y = mx + c \\ 0 = - 3(9) + c \\ 0 = - 27+ c \\ 27 = c$

Therefore the equation of the line is:

$y = mx + c \\ y = - 3x + 27$

5 0

2 years ago

45.Erica Glaser deposits a check for $20,005.00 and $1.234.00 in cash. What is het total

Gwar [14]

Her total is $21,239

5 0

2 years ago