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3 years ago

PLEASE Answer asap!!!!

Mathematics

1 answer:

Zina [86]3 years ago

6 0

Answer:

x=0

Step-by-step explanation:

The axis of symmetry: $x=\frac{-b}{2a}$ when the equation is $y=ax^2+bx+c$

The given equation is:

$y=x^2-6$

To make the a and b values more easily identifiable, we can rewrite it like this:

$y=1x^2+0-6$

Now, we can tell that a=1 and b=0. Plug these into the equation $x=\frac{-b}{2a}$ :

$x=\frac{-(0)}{2(1)}\\x=0$

Therefore, the equation for the axis of symmetry for the parabola is x=0.

I hope this helps!

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Help!!!!!!!!!!!!!!!!!<br> Plz help me :)

user100 [1]

Answer:

a) 121,000

b)8.35 x 10^-6

Step-by-step explanation:

7 0

2 years ago

How to find the number of sides of a polygon when given the interior angle sum

wariber [46]

Given:

Sum of interior angle

To find:

Number of sides of a polygon

Solution:

Using sum of interior angles formula:

$$S=(n-2) \times 180^{\circ}$

where "S" is the sum of interior angels and "n" is the number of sides of a polygon.

Divide by 180° on both sides.

$$\frac{S}{180^{\circ}}=\frac{(n-2) \times 180^{\circ}}{180^{\circ}}$

Cancel common factor 180°.

$$\frac{S}{180^{\circ}}=n-2$

Add 2 on both sides.

$$\frac{S}{180^{\circ}}+2=n-2+2$

$$\frac{S}{180^{\circ}}+2=n$

Switch the sides.

$$n=\frac{sum}{180^{\circ}}+2$

Therefore number of sides of a polygon is $n=\frac{sum}{180^{\circ}}+2$ .

3 0

3 years ago

Help!!!!!! Please I have no idea what this is!!!

Semmy [17]

Answer:

33.49 cubic units

Step-by-step explanation:

$V_{sphere} = \frac{4}{3} \times \pi {r}^{3} \\ \\ V_{sphere} = \frac{4}{3} \times \pi {(2)}^{3} \\ \\ V_{sphere} = \frac{4}{3} \times \pi \times 8 \\ \\ V_{sphere} = \frac{32 \times 3.14}{3} \\ \\ V_{sphere} = \frac{100.48}{3} \\ \\ V_{sphere} = 33.4933333\\ \\ V_{sphere} \approx 33.49\: units^3$