All categories

2 years ago

Can you help me find the equation of the axis of symmetry for the parabola y=x^2-2x-9?

Mathematics

1 answer:

NNADVOKAT [17]2 years ago

4 0

Answer:1,-10

Step-by-step explanation:

You might be interested in

Radio waves travel at the speed of light, approximately 300,000,000 m/s. Part A How much time does it take for a radio message t

jenyasd209 [6]

Answer:

Step-by-step explanation:

First you want to understand that every time a radio wave goes 300,000,000 meters a second passes, literally what meter per second means. of course it doesn't go that far, it goes 384,000 one way and then the same distance back, which makes 768,000. Under a third of the distance to make 1 second, so it will be less than one second.

You also want to understand the formula for speed. speed = distance / time. Whch also means, to find time you can change it to be time = distance / speed. And hey, we have distance and speed. 768,000 / 300,000,000 = .00256, I'll leave the significant figures to you unless you need help with them. but that's .00256 of a second. or .00256 s

7 0

3 years ago

Read 2 more answers

If i= square root of -1, what is the value of i^3

Ber [7]

Answer:

$- i$

Step-by-step explanation:

Set up equation.

$i {}^{3} = y$

${i}^{2 } \times i = y$

$- 1 \times i = y$

$- i = y$

6 0

2 years ago

$1200 is invested at 3% compounded quarterly. What is the total amount, to the nearest dollar, after 5 years?

Mekhanik [1.2K]

The formula to calculate the amount is 1200(1+0.03/4)^5

8 0

3 years ago

0.34 + [9.8 - (5.4+ 1.4)<br> 0.3- + [9.8 -<br> Add.

stepan [7]

Answer:0.5(x+1.6)+1.4(3x+2.4)=9.8

Step-by-step explanation:

8 0

2 years ago

On a coordinate plane, a line is drawn from point C to point D. Point C is at (negative 1, 4) and point D is at (2, 0). Point C

skelet666 [1.2K]

Answer:

distance = 5 units

Step-by-step explanation:

In order to solve this problem we can start by plotting the two points you were provided with (see attached picture). This will help us visualize the problem better.

Now, we need to find the distance between those two points, so in order to do so we can use the distance formula:

$distance = \sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}}$

in this case the x's and y's are given by the given points, since they are written as ordere pairs. And ordered pairs are written in the form (x,y). So for Point C:

C=(-1,4)

$x_{1}=-1$