3 years ago

Solve for x in the diagram below. x 3xº 100°

Mathematics

2 answers:

Harrizon [31]3 years ago

7 0

Answer:

x+3x+100°=180°(straight line is 180°)

4x+100°=180

4x=180°-100°

4x=80

x=80/4

x=20

diamong [38]3 years ago

6 0

Ummm ....... I think x=80

You might be interested in

What is 9 to the 4 power plus 3 to the 3rd power equal?

Shalnov [3]

9^4 + 3^3
= 9•9•9•9 + 3•3•3
= 6,561 + 27
= 6,588

6 0

3 years ago

The circle shown below has a diameter of 18 centimeters. What is the area of the shaded sector?

N76 [4]

Area of circle = Pi x r*2

If diameter is 18, radius is 9.

Area = pi (3.14) x r*2 (9*2 = 81) .. 3.14 x 81 = 254.34 sq cen = total area of circle.

A circle is 360 degrees, the shaded area is 270 degrees. the shaded area is 3/4 (270/360) of the area of the circle.

254.34 x 3/4 = 190.755 sq cen

Hope this helps

7 0

3 years ago

Read 2 more answers

600 centimeters__5 meters

uranmaximum [27]

600 centimeters > 5 meters

4 0

3 years ago

The scale on a map states that 1 centimeter corresponds to 20 kilometers. On the map, two cities are 0.3 cm apart. Find the actu

Archy [21]

Answer: The actual distance is 6 km

Step-by-step explanation: If you do a conversion from 1 cm to 20 km in fraction form, you will have

$\frac{1cm}{20km} = \frac{0.1cm}{km ?}$

So, if you solve for km, you will get 6 using cross multipulcation

6 0

3 years ago

On the circle below, tangent line BC¯¯¯¯¯ is constructed by striking an arc from point D that intersects circle A at point B. Th

weqwewe [10]

Answer:

$\huge\boxed{BD = 12\ units}$

Step-by-step explanation:

If AB = 5 , then AE = 5 [Radii of the same circle]

So,

AC = AE + EC

AC = 8+5

AC = 13 units

Now, Using Pythagorean theorem to find the missing side i.e. BD because tangent strikes the circle at 90 degrees making the triangle a right angled triangle

$c^2=a^2+b^2$

Where c = AC , a = BD and b = AB

$13^2 = BD^2+5^2$

169 = BD² + 25

Subtracting 25 to both sides

169 - 25 = BD²

BD² = 144

Taking square root on both sides

BD = 12 units

5 0

3 years ago