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vampirchik [111]
2 years ago
9

Find the value of x please I need help

Mathematics
2 answers:
s2008m [1.1K]2 years ago
4 0

Answer:

Step-by-step explanation:

113+90+90+12x+7=360(sum of four angles is always 360 degree)

300+12x=360

12x=360-300

x=60/12

x=5

elena55 [62]2 years ago
3 0

Answer:

X = 5

Step-by-step explanation:

Shapes with 4 sides have angles that add to 360 degrees

So you have two right angles and 113 degrees.

This is

90+90+113=293

360-293=67

12x5=60

60+7=67

This means that x=5

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An acute triangle is isosceles. Is this statement true? pls explain
solniwko [45]

Answer:

I hope this helps:)

Every isosceles triangle has an axis of symmetry along the perpendicular bisector of its base. The two angles opposite the legs are equal and are always acute, so the classification of the triangle as acute, right, or obtuse depends only on the angle between its two legs.

4 0
3 years ago
Select the following lines that would be perpendicular to y = 3x + 1. (Select ALL correct)
max2010maxim [7]

Answer:

The line passing through points (1,4) and (4,3).

The line passing through points (1,-4) and (4,-5).

Step-by-step explanation:

Since the equation is y=3x+1

If it was perpendicular, it means the slope would be the negative reciprocal.

So the slope would be -1/3

9-8/6-3=1/3 (not negative) <u>No</u>

3-4/4-1=-1/3 <u>Yes</u>

-5+4/4-1=-1/3 <u>Yes</u>

6-3/5-4= 3/1 <u>No</u>

6 0
3 years ago
Adrian is drawing a map to show the directions from his house to his grandmother's house. He uses a scale of 1 1/2
Nadya [2.5K]
It’s going to be 4 1/2 inches.
36/12=3
3x1 1/2=4 1/2
8 0
3 years ago
The graphs of these two equations intersect in how many points?<br> x^2+y^2=25<br> x^2-y^2=3
Korolek [52]

Answer:

Step-by-step explanation:

x²+y²=25

it is a circle with radius=5

x²-y²=3

it is a hyperbola.

x²-y²=3

so they intersect in four points.

4 0
2 years ago
The average adult spends 7 to 8 hours sleeping. About 20% of the time you sleep is spent in rapid eye movement (REM) sleep which
maksim [4K]

Answer:

.20(7) ≤ x .20(8)

Step-by-step explanation:

let 'x' = amount of time in REM sleep

5 0
3 years ago
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