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Olenka [21]
3 years ago
7

Someone help me please. this is annoying. which ones are right?​

Mathematics
1 answer:
marta [7]3 years ago
5 0

9514 1404 393

Answer:

  B, C, D, E

Step-by-step explanation:

A square has all side equal, opposite sides parallel, and all angles equal (90°). Because all sides are equal, so are adjacent sides. All but the first and last descriptions apply to a square.

The first description is that of a trapezoid, which has exactly one pair or parallel sides. The last description is that of an isosceles (right) triangle, which has sides that are referred to as "legs."

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Neil wants to join three pieces of metal to form a right triangle. which of the following lengths could be used? please use step
vichka [17]

Answer: G. 12.5, 7.5, 10

Step-by-step explanation:

To determine the lengths of metal that could be used to form the tight angle triangle, we would apply Pythagoras theorem which is expressed as

Hypotenuse² = opposite side² + adjacent side²

The hypotenuse is the longest side while the opposite and adjacent sides are the shorter side. Therefore,

F.

8² = 4² + 4²

64 = 16 + 16 = 32

A right angle triangle cannot be formed because they are not equal.

G.

12.5² = 7.5² + 10²

156.25 = 56.25 + 100 = 156.25

A right angle triangle can be formed because they are equal.

H.

23² = 11² + 9²

529 = 121 + 81 = 202

A right angle triangle cannot be formed because they are not equal.

J.

96² = 12.5² + 6²

9216 = 156.25 + 36 = 192.25

A right angle triangle cannot be formed because they are not equal.

4 0
3 years ago
Use the digits to investigate addition and subtraction. Digit to make a sum from 0-9 with an answer equal to 98 765
GaryK [48]
Ok ok

90,000+8,000+700+60+5
 ha ha :)
there u go
7 0
4 years ago
Through: (4, -3), perp. to y=-2x + 1
larisa86 [58]

Step-by-step explanation:

y = -2x + 1. => Slope = -2

Then the perpendicular line will have a slope of -1/(-2) = 0.5.

We have y = 0.5x + c.

When x = 4, y = -3.

=> (-3) = 0.5(4) + c, c = -5.

Hence the answer is y = 0.5x - 5. (C)

7 0
3 years ago
For each of the following questions, draw a diagram to explain your answer.
telo118 [61]

Answer:

fourth are in one half

Step-by-step explanation:

please mark me as brainlist please

8 0
2 years ago
Which equation represents this statement? One-third of a number is 21.
Musya8 [376]
This states that a number divided by 3 is 21. the equation is: n/3 = 21
5 0
3 years ago
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