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2 years ago

Which triangle is a 30°-60°-90° triangle?

Mathematics

1 answer:

Talja [164]2 years ago

5 0

Answer:

the first one

Step-by-step explanation:

Hey There!

Look at the image for the rule of a 30- 60 - 90 triangle

x = 5

the hypotenuse would be x2 so 10

the longer leg would be x $\sqrt{3}$

So the first triangle is the right answer

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Calculator display for 7/12

Alina [70]

Answer:

7/12=0.583333333333

Step-by-step explanation:

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2 years ago

2x + 3y = 26 3x + 5y = 40 find x and y I will give brainliest

Yuki888 [10]

Answer:

x = 10 and y = 2

Step-by-step explanation:

multiply first equation by 5 and 2nd equation by 3 then subtract equation 1 and 2, we get,

10x+15y= 130

9x+15y=120

( -) (-) (-)

x= 10

substituting the value of x in equation 1 we get

2x + 3y = 26

2*10 + 3y = 26

3y = 26-20

y =6/3

y= 2.i hope this helps

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2 years ago

Please help! Due in 1 hour

Ket [755]

If the questions are asking where the two equations meet the answer is (1,1)

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2 years ago

Read 2 more answers

Solve for r. r+2<10 FIRST TO SOLVE WILL BE BRAINLIEST

Marat540 [252]

Answer:

The answer is:

r<8

Alternative Form of the answer:

r ∈ (-∞, 8)

4 0

2 years ago

The perimeter of an equilateral triangle is 83 inches. If the length of each side is (2x -3), find the value of x.

Minchanka [31]

Answer:

$x = 15 \frac{1}{3}$

Step-by-step explanation:

Equilateral triangles have 3 equal sides.

Thus, perimeter of triangle

= 3(2x -3)

= 3(2x) +3(-3) (expand)

= (6x -9) inches

Given that the perimeter is 83 inches,

6x -9= 83

6x= 83 +9 (+9 on both sides)

6x= 92

$x = 15 \frac{1}{3}$

6 0

2 years ago