All categories

3 years ago

How do I solve this question I don’t know how to do it at all

Mathematics

1 answer:

ICE Princess25 [194]3 years ago

4 0

Answer:

x = 5.2

Step-by-step explanation:

See the diagram first.

We know that in a triangle if we draw a line parallel to the baseline then it will divide the other two lines of the triangle in the same ratio.

Therefore, from the given figure it is clear that $\frac{x}{13-x} = \frac{2}{3}$

⇒ 3x = 26 - 2x

⇒ 5x = 26

⇒ x = 5.2 (Answer)

You might be interested in

Determine the equation of the circle graphed below.

sergij07 [2.7K]

Answer:

Equation = (x - 6 )² + ( y + 3 )² = 9

Step-by-step explanation:

The circle passes through ( 6, 0) and ( 6 , -6)

They are the coordinates of the diameter.

Using this we can find the centre of the circle.

Find the centre of the circle.

Centre of the circle is the mid- point of (6, 0) and ( 6, -6)

$Centre = (\frac{x_1+x_2}{2} , \frac{y_1 + y_2}{2})$

$=(\frac{6 + 6}{2}, \frac{0 + (-6)}{2})\\\\=(6, -3)$

Find the radius of the circle.

$Radius = \frac{Diameter }{2}$

Diameter is the distance between the points (6 , 0) and ( 6, - 6)

$Diameter = \sqrt{(x_2 - x_1)^2+ (y_2 - y_1)^2\\}$

$=\sqrt{(6-6)^2 + (-6 -0)^2}\\\\=\sqrt{0 + 36} \\\\= 6$

Therefore,

$Radius ,r = \frac{6}{2} = 3$

Standard equation of a circle:

$(x - a)^2 + (y - b)^2 = r^2 \ where \ (a , b) \ is \ the\ centre \ coordinates.$

Therefore , equation of the circle ;

$(x - 6)^2 + (y + 3)^2 = 3^2\\\\(x -6)^2 + (y + 3)^2 = 9$

6 0

3 years ago

Help please!!!!!!!!!!!!!

Mandarinka [93]

The answer is 110
Explanation: every 4 sided shapes area is 360 so add up all the others together to get 250 and then 360-250= 110

6 0

3 years ago

Read 2 more answers

3. Spiral Review: Solve the equation algebraically. Show all work. Circle your final solution.

AlexFokin [52]

Answer:

z=-13/7

Step-by-step explanation:

1. Add 3z(7z+5=-8)

2. Subtract 5(7z=-13)

3. Divide 7(z=-13/7)

3 0

2 years ago

You are looking for an apartment to rent starting the

sweet [91]

2 months, 600 x2 = 1200+1000 =2200
850 x2 = 1700+500 = 2200

8 0

3 years ago

The base of a triangular prism is what shape?

kirill [66]

Look at the two faces which are parallel. Those are the bases and give the prism its name. In this case, the triangles are the parallel faces. Therefore, they are the bases and the prism is a triangular prism

4 0

2 years ago