All categories

3 years ago

Given the parabola whose equation is y^2=-2/7x, Find the focus and determine if the parabola opens left or right.

Mathematics

2 answers:

Kitty [74]3 years ago

7 0

Answer:

the answer is d it opens to the left and is p=(0,-1/14)

Law Incorporation [45]3 years ago

5 0

Answer:

B. p=(-8/7,0)

Opens right Make sure to brain me if i'm right xoxo

You might be interested in

In a particular region there is a uniform current density of 18 a/m2 in the positive z direction. what is the value of line inte

Ugo [173]

By Stokes' theorem, the integral is 0. If $R$ is the triangular region bounded by the given line segments composing the curve $C$ , then

$\displaystyle\int_{\partial R}\mathbf b\cdot\mathrm d\mathbf s=\iint_R\nabla\times\mathrm d\mathbf r$

where $\nabla\times F=\mathrm{curl}(0,0,18)=0$ .

Just to verify this, we can parameterize the path by

$C=C_1\cup C_2\cup C_3$
$\begin{cases}C_1:=\{(4d,3dt,0)~|~0\le t\le1\}\\C_2:=\{(4d(1-t),3d(1-t),0)~|~0\le t\le1\}\\C_3:=\{(4dt,0,0)~|~0\le t\le1\}\end{cases}$

$\displaystyle\int_C\mathbf b\cdot\mathrm d\mathbf s$
$=\displaystyle\int_0^1(0,0,18)\cdot(0,3d,0)\,\mathrm dt+\int_0^1(0,0,18)\cdot(-4d,-3d,0)\,\mathrm dt+\int_0^1(0,0,18)\cdot(4d,0,0)\,\mathrm dt$
$=0+0+0=0$

7 0

3 years ago

Lucy graphed the relationship between the temperature and the change in the number of people sledding at a park. The xxx-coordin

Shalnov [3]

Answer: quadrant 1

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

What is the average rate of change for the function f(x)=3(0.25)^x over the interval -2 ≤ x ≤ 0

diamong [38]

Answer:
-22.5

Explanation:
Use the average rate of change equation
f(b)-f(a) / b-a
f(b) = f(0) = 3(.25)^0 = 3
f(a) = f(-2) = 3(.25)^-2 = 48

(3-48)/ 0-(-2)
(-45) / 2
-22.5

8 0

3 years ago

What is the volume of the right prism?

Tasya [4]

Volume=legnth times widht times height
since this is a rectangle and multiplication is commutative

doesn't matter what order wr multiply
V=5*5*12
V=300 in^3

4 0

3 years ago

⇒15 points not rlly that hard of a question just im confused

Sauron [17]

19 people take the elevator. it’s just asking for the total of people who take the elevator.

5 0

3 years ago

Read 2 more answers