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3 years ago

Part 1: Identify key features and graph a parabola from standard form.

Mathematics

1 answer:

astraxan [27]3 years ago

4 0

Wait i will tell you soon dont worry, im out now sorryy ^.^

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Please help with this question, thank you

Semmy [17]

Remark
The key step is just to subtract 5 from both sides. The pointed of the inequality still points away from the variable and towards the number. As long as that remains true, the correct answer can be found.

Solution
2.7 ≤ b + 5 Subtract 5 from both sides.
2.7 - 5 ≤ b
- 2.3 ≤ b Write with the variable on the left.
b ≥ - 2.3 <<<< answer

6 0

3 years ago

Read 2 more answers

F(3)= 5x^2 - 4x + 9<br> evaluate this quadratic function

Neporo4naja [7]

Answer:

$f(3) = 38$

Step-by-step explanation:

Given the quadratic function

$f\left(x\right)=\:5x^2\:-\:4x\:+\:9$

Evaluating the quadratic function

$f\left(x\right)=\:5x^2\:-\:4x\:+\:9$

substitute x = 3

$f\left(3\right)=\:5\left(3\right)^2\:-\:4\left(4\right)\:+\:9$

$f(3) = 45-16+9$

$f(3) = 38$

Therefore,

$f(3) = 38$

6 0

2 years ago

Complete the square and write in function form f(x)=x^2+5x+3

Over [174]

F(x) = x^2 +5x + 3

= (x + 2.5)^2 - 6.25 + 3

= (x + 2.5)^2 - 3.25

That is vertex form. I am not sure what you mean by function form

6 0

3 years ago

Please see attachment!!! The formula for finding the area of a rectangle is

pychu [463]

Answer:

36cm^2

Step-by-step explanation:

4cm×9cm=36cm^2

5 0

3 years ago

Read 2 more answers

What equation can I use to find the side of a cube whose area is 729?

Tom [10]

#1 There is no area of a cube. There is only a volume.
#2 The formula is $V = s^{3}$ where s is the side.

Substitute 729 in V since that is the volume.
$729 = s^{3}$

Take the cube root and you will get 9.

So the formula is $V = s^{3}$ and the side is 9.

8 0

4 years ago