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
Nataliya [291]
3 years ago
8

In the trapezoid below, find the values of a and b

Mathematics
2 answers:
polet [3.4K]3 years ago
6 0

Since it’s a trapezoid, 111 + b will equal 180, as will 41 + a.

111 + b = 180 means b = 69.

41 + a = 180 means a = 139.

This happens simply because two angles that are positioned that way between parallel lines will always be supplementary. It’s also worth noting that all angles in any quadrilateral will add up to be 360 degrees.

Ad libitum [116K]3 years ago
6 0

Answer:

a = 139, b = 69

Step-by-step explanation:

Using a property of trapezoids.

Each lower base angle is supplementary to the upper base angle on the same side, hence

a = 180 - 41 = 139

b = 180 - 111 = 69

You might be interested in
Help me please ❤️<br> Thank you
anyanavicka [17]

Answer:

I think it would be finding the quantity in each group.

Step-by-step explanation:

Because there would be more than 1 group. there is only one group. so you are trying to find the number of hours each person in the group will get.

i think that is right sorry if not.

5 0
3 years ago
Read 2 more answers
85 is 15% of what number
Illusion [34]

Answer:

We have, 15% × x = 85

or,  

15

100

× x = 85

Multiplying both sides by 100 and dividing both sides by 15,

we have x = 85 ×  

100

15

x = 566.67

5 0
3 years ago
Read 2 more answers
Find the x-intercepts of the parabola with vertex (1,1) and y-intercept (0,-3). Write your answer in this form (x of 1 , y of 1)
Vikki [24]
Remember that the vertex form of a parabola or quadratic equation is:

y=a(x-h)^2+k, where (h,k) is the "vertex" which is the maximum or minimum point of the parabola  (and a is half the acceleration of the of the function, but that is maybe too much :P)

In this case we are given that the vertex is (1,1) so we have:

y=a(x-1)^2+1, and then we are told that there is a point (0,-3) so we can say:

-3=a(0-1)^2+1

-3=a+1

-4=a so our complete equation in vertex form is:

y=-4(x-1)^2+1

Now you wish to know where the x-intercepts are.  x-intercepts are when the graph touches the x-axis, ie, when y=0 so

0=-4(x-1)^2+1  add 4(x-1)^2 to both sides

4(x-1)^2=1  divide both sides by 4

(x-1)^2=1/4  take the square root of both sides

x-1=±√(1/4)  which is equal to

x-1=±1/2  add 1 to both sides

x=1±1/2

So x=0.5 and 1.5, thus the x-intercept points are:

(0.5, 0) and (1.5, 0)  or if you like fractions:

(1/2, 0) and (3/2, 0) :P
4 0
3 years ago
What is the simple subject of I could feel the rain on my left shoulder.
ahrayia [7]
This a dang easy question. Ask yourself,what is the sentence about?



7 0
3 years ago
Plz help asap !!! The high school jazz band is selling homemade leather bracelets at a local craft fair to raise money for a tri
coldgirl [10]

Answer:

b. y=2x-200

c. there will be no profit because 2 times 100 = 200, meaning they only earned back the money they already spent.

d. (domain or y-values) minimum: -200 maximum: 320

(range or x-values) maximum: 260

3 0
2 years ago
Other questions:
  • HELP ASAP!!!!!! 20 Points and will mark brainliest for correct answer!
    12·2 answers
  • Suppose that 3% of the 2 million high school students who take the SAT each year receive special accommodations because of docum
    6·1 answer
  • Which statement is true about every rectangular pyramid?
    7·2 answers
  • Area of a triangle can be found using the formula A = 1/2 bh where B is the base of the triangle and H is the height of the tria
    15·1 answer
  • Maxine is buying extra pages for her photo album. Each page holds exactly 8 photos. Sketch a graph to show the maximum number of
    12·1 answer
  • Evaluate - x - 4 when x = - 7 and y=5
    13·1 answer
  • Help me with this please
    12·1 answer
  • What is the equation of a circle that has a center at (-4, 10) and a radius of 8?
    5·1 answer
  • What is the size of ZACB?
    8·1 answer
  • 8. A rectangle is 8 feet long and 4 feet wide. If we remove a 2' square out of one
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!