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
fiasKO [112]
3 years ago
9

an isosceles triangle has an angle that measures 70 which other angles could be In the that isosceles triangle?choose all that a

pply. 70 85 40 or 55​
Mathematics
2 answers:
BARSIC [14]3 years ago
6 0

Answer:

70, 70 , 40 or 70,55,55

Step-by-step explanation:

In isosceles triangle , two angle are equal.  

70+70+x = 180

140 + x = 180

x =180 - 140 =40

or

x +x + 70 =180

2x = 180 - 70

2x = 110

x =110/2

x = 55

Papessa [141]3 years ago
3 0

Answer:

idk

Step-by-step explanation:

idk

You might be interested in
Part 4: Use the information provided to write the vertex formula of each parabola.
sergey [27]

Answer:  1. x = (y - 2)² + 8

              \bold{2.\quad x=-\dfrac{1}{2}(y-10)^2}+1

               3. y = 2(x +9)² + 7

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

Notes: Vertex form is: y =a(x - h)² + k    or      x =a(y - k)² + h

  • (h, k) is the vertex
  • point of vertex is midpoint of focus and directrix:   \dfrac{focus+directrix}{2}

     \bullet\quad a=\dfrac{1}{4p}

  • p is the distance from the vertex to the focus

1)

focus = \bigg(\dfrac{-31}{4},2\bigg)\qquad directrix: x=\dfrac{-33}{4}\\\\\text{Since directrix is x, then the x-value of the vertex is:}\\\\\dfrac{focus+directrix}{2}=\dfrac{\frac{-31}{4}+\frac{-33}{4}}{2}=\dfrac{\frac{-64}{4}}{2}=\dfrac{-16}{2}=-8\\\\\text{The y-value of the vertex is given by the focus as: 2}\\\\\text{vertex (h, k)}=(-8,2)

Now let's find the a-value:

p=focus-vertex\\\\p=\dfrac{-31}{4}-\dfrac{-32}{4}=\dfrac{1}{4}\\\\\\a=\dfrac{1}{4p}=\dfrac{1}{4(\frac{1}{4})}=\dfrac{1}{1}=1

Now, plug in a = 1   and    (h, k) = (-8, 2) into the equation x =a(y - k)² + h

x = (y - 2)² + 8

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

2)

focus = \bigg(\dfrac{1}{2},10\bigg)\qquad directrix: x=\dfrac{3}{2}\\\\\text{Since directrix is x, then the x-value of the vertex is:}\\\\\dfrac{focus+directrix}{2}=\dfrac{\frac{1}{2}+\frac{3}{2}}{2}=\dfrac{\frac{4}{2}}{2}=\dfrac{2}{2}=1\\\\\text{The y-value of the vertex is given by the focus as: 10}\\\\\text{vertex (h, k)}=(1,10)

Now let's find the a-value:

p=focus-vertex\\\\p=\dfrac{1}{2}-\dfrac{2}{2}=\dfrac{-1}{2}\\\\\\a=\dfrac{1}{4p}=\dfrac{1}{4(\frac{-1}{2})}=\dfrac{1}{-2}=-\dfrac{1}{2}

Now, plug in a = -1/2   and    (h, k) = (1, 10) into the equation x =a(y - k)² + h

\bold{x=-\dfrac{1}{2}(y-10)^2}+1

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

3)

focus = \bigg(-9,\dfrac{57}{8}\bigg)\qquad directrix: y=\dfrac{55}{8}\\\\\text{Since directrix is y, then the y-value of the vertex is:}\\\\\dfrac{focus+directrix}{2}=\dfrac{\frac{57}{8}+\frac{55}{8}}{2}=\dfrac{\frac{112}{8}}{2}=\dfrac{14}{2}=7\\\\\text{The x-value of the vertex is given by the focus as: -9}\\\\\text{vertex (h, k)}=(-9,7)

Now let's find the a-value:

p=focus-vertex\\\\p=\dfrac{57}{8}-\dfrac{56}{8}=\dfrac{1}{8}\\\\\\a=\dfrac{1}{4p}=\dfrac{1}{4(\frac{1}{8})}=\dfrac{1}{\frac{1}{2}}=2

Now, plug in a = 2   and    (h, k) = (-9, 7) into the equation y =a(x - h)² + k

y = 2(x +9)² + 7

4 0
3 years ago
What is the answer please help me
Flura [38]

9 and 1/2 is the answer. We can find this by simply subtract 1 1/2 from 12.

7 0
3 years ago
Read 2 more answers
What percent is equivalent to 8/40 ? 8% 20% 25% 40%
Nikitich [7]
First you have to get the number on the right 40 to equal 100 so do 40x2=80- +40x1.5= 100

Then do the same thing to the first number 8 so 8x2=16+8x1.5=20

then you have 20/100 right so then that number over 100 is the percent that you get ^-^ 20%
7 0
3 years ago
Read 2 more answers
Please help 35 points!
AleksAgata [21]

Answer:

life changes over time?

Step-by-step explanation:

sorry if it is wrong. I havent done this yet

3 0
3 years ago
What is the value of x?​
Assoli18 [71]
It’s 35 degrees since you do 180-125 to get 35. :)
5 0
3 years ago
Other questions:
  • Sarah bought a shirt on sale for $35 the original price of the shirt was 3 times that amount sarah also bought a pair of shoes o
    8·1 answer
  • Zarina is scuba diving. She will not give below -30 meters relative to the surface of the water. Write an inequality that repres
    13·1 answer
  • Sarah wants to spend $50 or less on a backpack. The following are prices for different backpack meets her spending limit
    9·1 answer
  • You preform an experiment to determine how many breaths a fish takes per minute. Your experiment yields the following data: minu
    6·2 answers
  • In order to solve x 2 + 12 x = 2 by completing the square, what value must be added to both sides?
    5·1 answer
  • Which statement is correct
    10·2 answers
  • Suppose you are making a sail in the shape of a right triangle for a sailboat. The length of the longest side of the sail is 65
    12·1 answer
  • This object is made with five identical cubes. Each cube is 4 centimeters long. What is the surface area of the object in square
    8·1 answer
  • The 3 one is 2x-1 please help​
    14·1 answer
  • How do u find this?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!