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lisabon 2012 [21]
3 years ago
10

Help pls. need this question answered asap

Mathematics
1 answer:
Dmitry [639]3 years ago
8 0
The answer is actually 15
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kherson [118]
The relationship is not proportional because the boys and girls are in different grades and they are in different activities.
5 0
3 years ago
Find the value of x if DE is the midsegment of triangle ABC and
Varvara68 [4.7K]

Answer

Find out the value of x.

To prove

Definition of mid- segment

It is a segment connecting the midpoints of two sides of a triangle.

It is always parallel to the third side, and the length of the midsegment is half the length of the third side.

As shown in the triangle given below.

As given

DE = 5x and BC = 11x – 15

Thus

DE = \frac{BC}{2}

5x = \frac{11x-15}{2}

5x\times 2 = 11x-15

10x = 11x-15

15 = 11x - 10x

15 = x

Therefore the value of x is 15 .

                   

8 0
3 years ago
50.38 inches in 2012 in 2013 the annual rainfall was 55.76 inches what is the difference in rainfall between the two years
Leno4ka [110]
55.76-50.38=4.38 inches of rainfall
Your welcome  =)
difference= subtraction
3 0
3 years ago
Find the value of each variable. If you give the decimal value, round to the nearest tenth.
DiKsa [7]

u = 10.4 and v = 12

Solution:

In the given 2 sides of a triangle are 60°, 60°.

Sum of all the angles of a triangle = 180°

60° + 60° + third angle = 180°

⇒ third angle = 180° – 60° – 60°

⇒ third angle = 60°

All angles are equal, therefore the given triangle is an equilateral triangle.

⇒ All sides are equal in length.

⇒ v = 12

The line drawn from the top angle divides the triangle into two equal parts

and the line is perpendicular.

12 ÷ 2 = 6

Using Pythagoras theorem,

\text{Base}^2+\text{Opposite}^2=\text{Hypotenuse}^2

⇒ 6^2+\text{opposite}^2=12^2

⇒ 36+\text{opposite}^2=144

⇒ \text{opposite}^2=108

⇒ \text{opposite}=6\sqrt3=10.4

⇒ u = 10.4

Hence, u = 10.4 and v = 12.

7 0
3 years ago
Find the missing side of each triangle. Leave your answers in simplest radical form.
Vladimir79 [104]

Answer:

Solution given:

p=10mi

b=6mi

h=x.

by using Pythagoras law

h²=p²+b²

x²=10²+6²

x=\sqrt{136}=2\sqrt{34}

3 0
3 years ago
Read 2 more answers
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