Evaluate the discriminant for x2-5x+4=0

I need help on this ASAP!!! (Feel free to explain your work! :)

AlladinOne [14]

Answer:

9/25 i think

Step-by-step explanation:

i got 9 from the tally marks, there was 9 tally marks,

and 25 is how much a quarter is

8 0

3 years ago

Read 2 more answers

(-2)³ + 4 ÷ (-15 + 9)(3) - 4?

dsp73

Answer:

$-\frac{110}{9}$

Step-by-step explanation:

Given expression is $(-2)^{3} +4/(-15+9)(3)-4$

Let us perform the operations inside the parentheses first.

$-8 +4/(-6)(3)-4$

$-8 +4/(-18)-4$

$-8-\frac{4}{18} -4$

$=-12-\frac{4}{18}$

$=-12-\frac{2}{9}$

$=-\frac{110}{9}$

4 0

4 years ago

3. Consider the functions f(x) = x2 + 10x – 5, g(x) = 8x + 1, and h(x) = 3x – 4. List the functions from least to greatest value

weeeeeb [17]

x = 3
f(x) = x²+ 10x - 5
f(3) = (3)² + 10(3) - 5
f(3) = 9 + 30 - 5
f(3) = 39 - 5
f(3) = 34

g(x) = 8x + 1
g(3) = 8(3) + 1
g(3) = 25

h(x) = 3x - 4
h(3) = 3(3) - 4
h(3) = 9 - 4
h(3) = 5

x = 6
f(x) = x² + 10x - 5
f(6) = (6)² + 10(6) - 5
f(6) = 36 + 60 - 5
f(6) = 96 - 5
f(6) = 91

g(x) = 8x + 1
g(6) = 8(6) + 1
g(6) = 48 + 1
g(6) = 49

h(x) = 3x - 4
h(6) = 3(6) - 4
h(6) = 18 - 4
h(6) = 14

I would explain to someone that you don't need to do any calculations to know the order of the functions when x is equal to 15 by knowing that f(x) is equal to 370, g(x) is equal to 121, and h(x) is equal to 41 to know that it is easy finding the function of x without calculating the answer.

4 0

4 years ago

Help pls pls pls pls pls pls

Licemer1 [7]

Answer Q=(9,-7). R=(9,-1). S=(5,-4)

4 0

3 years ago

9. The ticket at right has a perimeter of 42 cm.

Liula [17]

Perimeter simply represents the sum of all side lengths of a shape. The length of the missing side of the ticket is 5 cm; the length of gold line on each ticket is 20 cm, and 2 bottles of gold ink are required to draw gold lines on 200 tickets.