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snow_tiger [21]
3 years ago
8

Need help on #15 ..........

Mathematics
1 answer:
Rama09 [41]3 years ago
6 0
Just multiply man 2*4 2*3 1.5*4 and 1.5*3.
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Find the value of x.
Irina-Kira [14]
The 2 angles are complementary angles and need to equal 90 degrees.

Making an equation we have:

4x-10 + x = 90 degrees

Add like tems:
4x +x = 5x

Now we have:
5x-10 = 90

Add 10 to both sides:

5x = 100

Divide both sides by 5:

x = 100/5

X = 20


5 0
3 years ago
Read 2 more answers
Name two characteristics of a pair of parallel lines.
valentina_108 [34]

Answer:

they never meets...

they points the same direction

Step-by-step explanation:

thats all i can think off

6 0
3 years ago
Given the equation 2x + 4 = 4x − 2, select the reasoning that correctly solves for x.
Mars2501 [29]
Subtract 4, subtract 2x, then divide by -2
3 0
3 years ago
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
Ctfftcgyvhlhbufcfgbgfhjghbds
Rufina [12.5K]

Answer:

dwgcgvefyivcwucvwuf

Step-by-step explanation:

7 0
3 years ago
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