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Ad libitum [116K]

3 years ago

14

For flvs math 7th grade, there is and end of course segment 2 review video, and there is a phrase in it that we need to tell the

teacher does anyone know it?

1 answer:

alexandr402 [8]3 years ago

3 0

Answer:

whos ur math teacher

Step-by-step explanation:

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Use the quadratic formula to find the solutions for..<br> y = 2x^2 - 9x + 5.

Yakvenalex [24]

Answer: $x=\frac{9}{4}-\frac{\sqrt{41} }{4} \\x=\frac{9}{4}+\frac{\sqrt{41} }{4}$

Step-by-step explanation:

$2x^2-9x+5$

a=2

b=-9

c=5

$x=\frac{-b\frac{+}{}\sqrt{b^2-4ac} }{2a}$

$x=\frac{-(-9)\frac{+}{}\sqrt{(-9)^2-4(2)(5)} }{2(2)}$

$x=\frac{9\frac{+}{}\sqrt{81-40} }{4}$

$x=\frac{9\frac{+}{}\sqrt{41} }{4}$

$x=\frac{9}{4}-\frac{\sqrt{41} }{4} \\x=\frac{9}{4}+\frac{\sqrt{41} }{4}$

4 0

3 years ago

What is the axis of symmetry for f(x) = 2x − 8x + 8? (1 point) Select one: a. x = −2 b. x = −3 c. x = 3 d. x = 2

ExtremeBDS [4]

Answer:

x=2

Step-by-step explanation:

F(x) = 2x^2 - 8x +8

Axis of symmetry lies at the x coordinate of vertex

To find x coordinate of vertex use formula

$x=\frac{-b}{2a}$

from the given f(x) , a= 2 and b = -8

Plug in all the values

$x=\frac{-(-8)}{2(2)}$

$x=\frac{8}{4}=2$

x=2

So the axis of symmetry at x=2

6 0

3 years ago

Please Help Me! 50 points!

mariarad [96]

Move to the left 2 units would be a translation

Then Flip arms up and down is rotation.

Hope this helps.

7 0

3 years ago

Read 2 more answers

If y varies directly as x, and y is 20 when x is 4, what is the constant of variation for this relation?

yuradex [85]

Y
y=ax
where a is a constant of proportionality;
y=20, x=4
20=4a
a=20/4
a=5
y=5x
The constant of variation is 5

3 0

3 years ago

Pls help me on this.

Fiesta28 [93]

a) x=4

10+2x+6=24
-2x. -2x
10+6=-2x+24
-24. -24
10+6-24=-2x
simplify
-8=-2x
divide both sides by -2
4=x

2. x=7

14+3x+5=40
-3x. -3x
14+5=40-3x
-40. -40
14+5-40=-3x
-21=-3x
divide both side by -3
7=x

3 0

3 years ago