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
Softa [21]
3 years ago
12

Plz help will mark as BRAINLIEST

Mathematics
1 answer:
Ganezh [65]3 years ago
5 0

Answer:

C. x = 72 degrees.

Step-by-step explanation:

The 2 marked angles are alternate angles between 2 parallel lines so they are congruent. Thus:

x - 20 = 52

x = 52 + 20

x = 72 degrees.

You might be interested in
Given: ABCD is a trapezoid, AB = 13,CD = 14, BC = 5, and AD = 20. Find: A of ABCD
Nostrana [21]

Answer:

140 cm²

Step-by-step explanation:

A trapezoid consists of one rectangle and two triangles.

Now ABCD is a  trapezoid. Consider two heights BE and CF.

Therefore,l BEFC will be a rectangle,

then, EF and BC would be equal and BE and CF will be equal.

EF = BC = 5 and BE = CF = y.

Considering  AE as 'x', then

FD = AD - AE - EF

FD= 20 - x - 5 => 15 - x.

Below the attactment you can see, Triangles ABE and CDF are two right triangles. Applying the Pythagorean theorem,

AB² = BE² + AE² => 13² = y² +x²  ---> eq(1)

CD² = CF² + DF² => 14²= (15-x)²+ y²--->eq(2)

subtract eq (1) from eq (2)

14²-13² =(15-x)²-x²----> (term y² cancelled)

196 - 169 = 225 - 30x + x²- x² ----> (term x²  cancelled)

30x= 225 - 196 + 169

30x = 198

x= 198/30 => 6.6

putting the above value in eq(1)

169=  6.6² + y²

y² = 169  - 43.56

y²= 125.44 ---> taking sqare root on both sides

y= 11.2

Area of trapezoid can be determined by

A= (5+20)/2 . 11.2 = 140

Therefore Area of trapezoid is 140 cm²

4 0
3 years ago
Mandy made a circular flower garden with a
vichka [17]

Answer:

b. 22

Step-by-step explanation:

7 x 3.14 = 21.95

( you have to buy 22 because you connot buy half of one so

you have to round up)

21.95 - 22

3 0
2 years ago
I have $147 then I spent $42 on sneakers then i earned $45 by when I raise in my new sneakers
noname [10]

Answer:

$150

Step-by-step explanation:

147-42= 105

105+45= 150

4 0
3 years ago
Read 2 more answers
Please help quickly
strojnjashka [21]

Answer:

2x + 3

Step-by-step explanation:

Given

(x² + 7x + 1) + (- x² - 5x + 2) ← remove parenthesis

= x² + 7x + 1 - x² - 5x + 2 ← collect like terms

= 2x + 3

6 0
3 years ago
Read 2 more answers
Identify the radius of the circle whose equation is (x - 2)2 + (y - 8)2 = 16.
34kurt
\bf \textit{equation of a circle}\\\\ 
(x- h)^2+(y- k)^2= r^2
\qquad 
center~~(\stackrel{}{ h},\stackrel{}{ k})\qquad \qquad 
radius=\stackrel{}{ r}\\\\
-------------------------------\\\\
(x-\stackrel{h}{2})^2+(y-\stackrel{k}{8})^2=16\implies (x-2)^2+(y-8)^2=\stackrel{r}{4^2}
4 0
3 years ago
Read 2 more answers
Other questions:
  • Find the area of trapezoid
    10·1 answer
  • Geometry question helpppppppp
    6·1 answer
  • True or false, the number 3 goes on forever with no repeating patterns; therefore, it is rational
    11·2 answers
  • The solid shown has a volume of 9 units3. Determine the surface area of the solid.
    5·1 answer
  • What is the image point of (-2,-7)(−2,−7) after a translation right 4 units and down 2 units?
    15·1 answer
  • Equivalent Expression for 7[2r-3]
    12·1 answer
  • A box has a length of 5 cm, a width of 10 cm, and a helght of 2 cm. The volume of the box is 3 17 cm 3 100 cm 100 cm 17 cm​
    13·1 answer
  • Help pls please don’t comment if u don’t have a answer don’t use this for points please I need help ASAP
    5·1 answer
  • Reflect the following across y=-x​
    7·1 answer
  • The second term of arithematic proggresions 7. and the sum of the first four termd is 12 find
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!