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
Musya8 [376]
3 years ago
9

Expression 2

Mathematics
1 answer:
Alina [70]3 years ago
7 0
the correct answer is 24
You might be interested in
Please help with p and q<br> maths geometry
baherus [9]

Step-by-step explanation:

p)

in a very similar way, as the sum of all 4 angles in a triangle is always 180°, so is the sum of all angles in a quadrilateral (a polygon with 4 sides) 360°.

just look at rectangles at special representatives of such quadrilaterals.

now that we know this, we can simply say, the sum of all angles in our shape must be 360° :

(8x + 2) + (4x + 2) + (x - 2) + (5x -2) =

= 18x = 360

x = 20

A = 8×20 + 2 = 162°

B = 4×20 + 2 = 82°

C = 5×20 - 2 = 98°

D = 20 - 2 = 18°

a trapezium has the following properties (in the UK):

like other quadrilaterals, the sum of all the four angles of the trapezium is equal to 360°.

a trapezium has two parallel sides and two non-parallel sides.

the diagonals of a regular trapezium bisect each other.

in the USA for example the request for 2 parallel sides does not exist.

we have proven the point with the angle sum.

the other 2 are given by the diagram.

so, yes, it is a trapezium.

q)

the sum of all interior angles of a polygon is

(n - 2) × 180°

n being the number of d sides.

we have here a regular pentagon (5 equal sides).

the size of the angle at any vertex is then

(5 - 2) × 180 / 5 = 3 × 180 / 5 = 3×36 = 108°.

so, theta = 108°.

alpha + beta = 108°

ABE is an isoceles triangle.

so, beta = angle 1

beta + angle 1 + theta = 180

2×beta + 108 = 180

2×beta = 72

beta = 36°

therefore,

alpha = 108 - beta = 108 - 36 = 72°

4 0
1 year ago
2.16 repeating as a mixed number and fraction
MrMuchimi
2 16/100 this would be that as a fraction. I'm a little confused as to what your asking

3 0
3 years ago
Read 2 more answers
Estimate the quotient 368/4​
spin [16.1K]
Im pretty sure the quotient is 92
3 0
3 years ago
Read 2 more answers
Find the following amount.<br> What is ​75% of 16​?
Vlada [557]

Answer:

12

Step-by-step explanation:

16 times 0.75 = 12

8 0
3 years ago
Read 2 more answers
Marianna average 84 on her first three history exams. The first score was 67 the second score was seven less than the third scor
wel
Let S=score on the second exam, then
(67+S+(S+7))/3=84
cross multiply
2S+74=252
2S=178
S=89
So second exam: 89
third exam=89+7=96
Check: (67+89+96)/3=84 ok.
7 0
3 years ago
Other questions:
  • to troubleshoot a problem in a complex computer system you need to seek help from a ____ team. ( tech)
    15·2 answers
  • Show how to solve the problem 378×6 Using Pl. value with regrouping explain how you knew when to regroup
    15·1 answer
  • BRAINLIEST ASAP! PLEASE HELP ME :)
    5·1 answer
  • What is 2 to the 5th power times negative 2
    7·2 answers
  • PLEASE HELP, GIVING 55 POINTS IF YOU ANSWER (08.03/08.05 MC) A pair of equations is shown below: y = 3x − 5 y = 6x − 8 Part A: E
    15·1 answer
  • Evaluate t-u/v, when t=-1,u=-3 and v=1/2
    7·1 answer
  • a survey indicates that 3 out of 5 doctors use brand x asprin. If 2000 doctors were surveyed, how many used brand x?
    5·2 answers
  • Simplify to a single power of 4:4² x 4
    14·1 answer
  • Help, I need help plz. Like NOW!!
    12·2 answers
  • I have no idea what this is-
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!