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
postnew [5]
3 years ago
15

5 over 8 subtract by 7 over 8

Mathematics
2 answers:
expeople1 [14]3 years ago
8 0
Since it’s 5/8 minus negative 7/8, the answer is 12/8, you just add them together because the two negative signs cancel each other out.
iren2701 [21]3 years ago
4 0
That would give you 5/8 + 7/8
=12/8
=3/2
You might be interested in
Given that f(x) = 9x2 − 180, find x
timurjin [86]
-162
Because 9 x 2 = 18
18 - 180 = -162
7 0
3 years ago
Read 2 more answers
Part 4: Identify the vertex, focus and directrix of each. Then sketch the graph.
Nezavi [6.7K]

Answer: 1) Vertex: (6, -2)    Focus: (6, -7/4)     Directrix: y = -9/4

              2) Vertex: (-2, -1)   Focus: (-7/4, -1)     Directrix: x = -9/4

<u>Step-by-step explanation:</u>

Rewrite the equation in vertex format y = a(x - h)² + k   or   x = a(y - k)² + h by completing the square. Divide the b-value by 2 and square it - add that value to both sides of the equation.

  • (h, k) is the vertex
  • p is the distance from the vertex to the focus
  • -p is the distance from the vertex to the directrix

    \bullet\quad a=\dfrac{1}{4p}

1) y = x² - 12x + 34

y-34=x^2-12x\\\\y-34+\bigg(\dfrac{-12}{2}\bigg)^2=x^2-12x+\bigg(\dfrac{-12}{2}\bigg)^2\\\\\\y-34+36=(x-6)^2\\\\y+2=(x-6)^2\\\\y=(x-6)^2-2\qquad \rightarrow \qquad a=1\quad (h,k)=(6,-2)\\

a=\dfrac{1}{4p}\quad \rightarrow \quad 1=\dfrac{1}{4p}\quad \rightarrow \quad p=\dfrac{1}{4}\\\\\\\text{Focus = Vertex + p}\\.\qquad \quad =\dfrac{-8}{4}+\dfrac{1}{4}\\\\.\qquad \quad =-\dfrac{7}{4}\quad \rightarrow \quad\text{Focus}=\bigg(6,-\dfrac{7}{4}\bigg)\\\\\\\text{Directrix: y= Vertex - p}\\.\qquad \qquad y=\dfrac{-8}{4}-\dfrac{1}{4}\\\\.\qquad \qquad y=-\dfrac{9}{4}

*******************************************************************************************

2) x = y² + 2y - 1

x+1=y^2+2y\\\\x+1+\bigg(\dfrac{2}{2}\bigg)^2=y^2+2y+\bigg(\dfrac{2}{2}\bigg)^2\\\\\\x+1+1=(y+1)^2\\\\x+2=(y+1)^2\\\\x=(y+1)^2-2\qquad \rightarrow \qquad a=1\quad (h,k)=(-2,-1)\\

a=\dfrac{1}{4p}\quad \rightarrow \quad 1=\dfrac{1}{4p}\quad \rightarrow \quad p=\dfrac{1}{4}\\\\\\\text{Focus = Vertex + p}\\.\qquad \quad =\dfrac{-8}{4}+\dfrac{1}{4}\\\\.\qquad \quad =-\dfrac{7}{4}\quad \rightarrow \quad\text{Focus}=\bigg(-\dfrac{7}{4},-1\bigg)\\\\\\\text{Directrix: x= Vertex - p}\\.\qquad \qquad y=\dfrac{-8}{4}-\dfrac{1}{4}\\\\.\qquad \qquad x=-\dfrac{9}{4}

4 0
3 years ago
Is number square root of 2,500 rational or irrational
ddd [48]
Rational

\sqrt{2500 }  = 50
4 0
3 years ago
I REALLY NEED HELP QUICK!
Leni [432]

Answer:

y=1/2x-5

Step-by-step explanation:

From the picture you can see that (0, -5) is a point on the function and that (2, -4) is another point. Using these you can find the slope of the function with the equation

(y_{2} -y_{1})/(x_{2}-x_{1} )

We can substitute in the points so it looks like

(-4--5)/(2-0)  or  1/2 which is the slope of the function

Now, since the y-intercept is (0, -5) on the graph, the b part in the slope-intercept form of the equation would be -5, leaving us with the equation y=1/2x-5

4 0
3 years ago
PLEASE HELPPP!!! I will mark brainlist​
Maslowich

Answer:

d

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • What is the area of the region?
    5·1 answer
  • What are the domain and range of f(x) = |x – 3 | + 6?
    6·2 answers
  • 1. The shape of the top surface of a table is a trapezium. Find its area
    8·1 answer
  • The graph shows the number of miles traveled by a train over a 5 hour trip.
    8·1 answer
  • What is the area of the irregular polygon shown below?
    9·1 answer
  • What is the area of the right triangle below?
    14·1 answer
  • 10) Cheryl made a scale drawing of a square
    5·1 answer
  • One month Maya rented 2 movies and 3 video games for a total of $20. The next month she rented 6 movies and 5 video games for a
    7·1 answer
  • Jamie can jog miles in 20 minutes. What is her average speed in miles per hour?
    5·2 answers
  • Nearest ten thousand 384400
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!