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g100num [7]
3 years ago
12

What is the value of X

Mathematics
2 answers:
MrRa [10]3 years ago
6 0
Every angle is the same so you know what the angle is because in one corner there is a 60 degrees since every angle is 60 degrees and one corner has 3x all you have to do is 60/3 to find x and 60/3 = 20 so x = 20
kozerog [31]3 years ago
4 0

Answer:

x = 20

Step-by-step explanation:

The triangle is isosceles ( 2 congruent sides )

Hence the base angles are congruent, thus

3x = 60 ( divide both sides by 3 )

x = 20

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Which information is necessary to solve this story problem? Sam had a total of 14 people at his skating party. The party lasted
vovikov84 [41]

Answer:

For the problem we have:

Sam had 14 people at the party.

The party lasted for 4 hours.

He paid $2 for each person's skate rental and 3 for each person's entry ticket.

Suppose we want to know how much Sam spent on the party.

But we do not know if the $2 of the skate rental are per hour or per two hours, or in total, for example, if the amount is per hour, then the total amount for each skate is $2*4 = $8, so in the case that the rental depends on the time, we can not solve this problem because we do not have enough information.

If the $2 are fixed (do not depend on the time that the party lasted) then the fact that the party lasted for 4 hours does not matter.

We can calculate as 14 persons* ($2 + $3) each = 14*$5 = $70, then you can see that in this case the 4 hours data is not necessary

4 0
3 years ago
What is the length of the altitude of the equilateral triangle below
AVprozaik [17]

Answer

Find out the altitude of the equilateral triangle .

To proof

By using the trignometric identity.

tan\theta = \frac{Perpendicular}{base}

As shown in the diagram

and putting the values of the angles , base and perpendicular

tan 60^{\circ} = \frac{a}{4\sqrt{3}}

tan 60^{\circ} = \sqrt{3}

solving

\sqrt{3} = \frac{a}{4\sqrt{3}}

a = \sqrt{3}\times 4 \sqrt{3}

As

\sqrt{3}\times \sqrt{3} = 3

put in the above

a = 4 × 3

a = 12 units

The  length of the altitude of the equilateral triangle is 12 units .

Option (F) is correct .

Hence proved






3 0
3 years ago
Read 2 more answers
How do you determine if the following scale factor 4/3 would create an enlargement, reduction, or isometric figure?
lara31 [8.8K]
If the scale factor is greater than one, it will always create an enlargement, so since 4/3= 1 1/3 it’s 1 1/3 the size of the original figure, AKA an enlargement
7 0
3 years ago
Listen Find the area of a triangle whose vertices are (1, 2), (8, 2), and (1, 6
docker41 [41]

check the picture below, you can pretty much count the units off the grid.

recall that A = (1/2)bh.

7 0
3 years ago
Violet is playing a board game with her friends. She earns 78 points during the game, and she receives a game-end bonus for achi
Oxana [17]

Answer:

13

Step-by-step explanation:

78 + b = 91            Equation: Subtract 78 from both sides.

b = 91 - 78            

b = 13

You don't need her position in the game or the fact that 91 placed her second.  

6 0
3 years ago
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