1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
zmey [24]
3 years ago
13

Can anyone please help,me with this?

Mathematics
1 answer:
jeyben [28]3 years ago
7 0

Remark

To find the location of the focus, you need to know something about what you are being told about the horizontal line cutting the parabola at y = 4

The general formula for this is v * y = x^2. You need to have a way of finding v

Solve

When x = 4, y = 4 (from the graph)

v * 4 = 4^2

4v = 16

v = 16/4

v = 4

Now what you have is x^2 = 4p * y

4p = 4  because the value in front of y (I called it v) = 4

p = 4/4 = 1

The focus is at h,k + p

The x value of the focus is 0

The y value of the focus is 0 + 1 = 1

The focus is located at (0,1)

The y value of the focus is 0 + 1

You might be interested in
Solve the rest for me plz
Luba_88 [7]
Lo haria si pudiera que pena contigo
5 0
2 years ago
Read 2 more answers
-2/3- (-3/4)<br><br> Simplify if needed <br> Brainliest <br><br> Also, 5/6+5/12
bazaltina [42]

Answer:

-\frac{2}{3} - (-\frac{3}{4}) = \frac{1}{12}

\frac{5}{6} + \frac{5}{12} = \frac{5}{3}

Step-by-step explanation:

Given

-\frac{2}{3} - (-\frac{3}{4})

Required

Solve:

-\frac{2}{3} - (-\frac{3}{4})

Open bracket

-\frac{2}{3} - (-\frac{3}{4}) = -\frac{2}{3} +\frac{3}{4}

Take LCM

-\frac{2}{3} - (-\frac{3}{4}) = \frac{-8+9}{12}

-\frac{2}{3} - (-\frac{3}{4}) = \frac{1}{12}

\frac{5}{6} + \frac{5}{12}

Take LCM

\frac{5}{6} + \frac{5}{12} = \frac{10+5}{12}

\frac{5}{6} + \frac{5}{12} = \frac{15}{12}

Divide by 3/3

\frac{5}{6} + \frac{5}{12} = \frac{5}{3}

4 0
3 years ago
What's the numerator for the following rational expression? 8/y+3/y=?/y
GuDViN [60]
Ur answer would be 11/y
3 0
3 years ago
Read 2 more answers
Find the longer leg of the triangle.
Paha777 [63]

Answer:

Choice A. 3.

Step-by-step explanation:

The triangle in question is a right triangle.

  • The length of the hypotenuse (the side opposite to the right angle) is given.
  • The measure of one of the acute angle is also given.

As a result, the length of both legs can be found directly using the sine function and the cosine function.

Let \text{Opposite} denotes the length of the side opposite to the 30^{\circ} acute angle, and \text{Adjacent} be the length of the side next to this 30^{\circ} acute angle.

\displaystyle \begin{aligned}\text{Opposite} &= \text{Hypotenuse} \times \sin{30^{\circ}}\\ &=2\sqrt{3}\times \frac{1}{2} \\&= \sqrt{3}\end{aligned}.

Similarly,

\displaystyle \begin{aligned}\text{Adjacent} &= \text{Hypotenuse} \times \cos{30^{\circ}}\\ &=2\sqrt{3}\times \frac{\sqrt{3}}{2} \\&= 3\end{aligned}.

The longer leg in this case is the one adjacent to the 30^{\circ} acute angle. The answer will be 3.

There's a shortcut to the answer. Notice that \sin{30^{\circ}} < \cos{30^{\circ}}. The cosine of an acute angle is directly related to the adjacent leg. In other words, the leg adjacent to the 30^{\circ} angle will be the longer leg. There will be no need to find the length of the opposite leg.

Does this relationship \sin{\theta} < \cos{\theta} holds for all acute angles? (That is, 0^{\circ} < \theta?) It turns out that:

  • \sin{\theta} < \cos{\theta} if 0^{\circ} < \theta;
  • \sin{\theta} > \cos{\theta} if 45^{\circ} < \theta;
  • \sin{\theta} = \cos{\theta} if \theta = 45^{\circ}.

4 0
3 years ago
Read 2 more answers
Your family is having a family reunion and you are in charge of the food, there are two great restaurants, but you must choose o
aleksklad [387]

Answer:

two chop chop

Step-by-step explanation:

because it's more cheaper and money saving

5 0
3 years ago
Read 2 more answers
Other questions:
  • Please help asap 50 pts
    5·2 answers
  • the length of a rectangle is more 3 more than the width. find the length of the rectangle if the perimeter is 98in​
    11·2 answers
  • You flip a nickel 100 times and record your results: 35 heads and 65 tails. From your experimental data, what is the probability
    5·2 answers
  • identify all of the central angles. please help me asap. i have to have this done soon! :( thann you so much!​
    15·1 answer
  • Jenna has bought a new hybrid car. Each week for a period of seven weeks, she has noted the fuel efficiency (in miles per gallon
    13·1 answer
  • Erik and Nita are playing a game with numbers. In the game, they each think of a random number from zero to 20. If the differenc
    11·2 answers
  • What are the coefficients of 4x -7 - 8x +17
    12·1 answer
  • Help<br> PLZZ right answers only with explanation ❤️
    10·1 answer
  • When we calculate the standard deviation, one of the intermediary steps is to subtract the mean from each data value. We do this
    14·1 answer
  • Devi rides the bus to her grandmother’s house every day. She tracked how many minutes the bus rides took for one week:
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!