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2 years ago

WILL GIVE BRAINLIEST find the equation of the axis of symmetry for the parabola y= -x^2-5x

Mathematics

1 answer:

timama [110]2 years ago

6 0

Answer:

The axis of symmetry is $-\frac{5}{2}$ .

Check the degree of your polynomial
Plug your numbers into the axis of symmetry formula
Write down the equation of the axis of symmetry

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Find the rectangular coordinates of the point with the polar coordinates (3, 3 divided by 2 pi ). (1 point)

kifflom [539]

Answer:

The correct choice is (0,-3)

Step-by-step explanation:

To convert from polar coordinates to rectangular coordinates, we use the parametric equations:

$x=r\cos \theta$ and $y=r\sin \theta$

The point given to us in polar coordinates is $(3,\frac{3}{2}\pi)$ .

where $r=3,\theta=\frac{3\pi}{2}$

$x=3\cos (\frac{3\pi}{2})$ and $y=3\sin( \frac{3\pi}{2})$

$x=3(0)$ and $y=3(-1)$

$x=0$ and $y=-3$

The correct choice is (0,-3)

5 0

3 years ago

There are 2125 seats in a stadium the stadium is divided into 25 sections how many seats are in each section

Fofino [41]

There are 85 seats in each section. 2125 divided by 25 is 85.

4 0

3 years ago

-7x - 2y = 19<br> 4x + y = -12<br> Solve the system

nalin [4]

-7x - 2y = 19

4x + y = -12

Set y equal to each other (opposite signs are fine and you could also set x equal instead of y)

-7x - 2y = 19

8x + 2y = -76

Add equations together

x = -52

Plug x value into an equation

4(-52) + y = -12

Solve for y

-208 + y = -12

y = 196

Hope this helps! ;)

4 0

3 years ago

If 350$ is placed in a savings account that earns 3.5% interest once a year, how much money will be in the account after 10 year

Anestetic [448]

472.50 because big maths

5 0

2 years ago

6t - 5 + 5t = 105 (t = 4; t = 7;t = 10)

mart [117]

Answer:

$t = 10$

Step-by-step explanation:

$6[10] - 5 + 5[10] = 105 \\ \\ 60 - 5 + 50 = 105 \\ \\ 105 = 105$

I am joyous to assist you anytime.

7 0

3 years ago