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zhuklara [117]
3 years ago
8

Which expressions are equivalent?

Mathematics
1 answer:
LiRa [457]3 years ago
5 0
The first answer choice of 3x-7y and -7y+3x are equivalent because if you separate the expressions into two terms one will be negative 7y or minus 7y which are the same things and positive 3x or plus 3x which are the same things
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Andrea is given AABC and told that a² + b2 = c2. She draws right triangle RTS with legs
Vinvika [58]

Question:

Andrea is given AABC and told that a² + b2 = c2. She draws right triangle RTS with legs

measuring a and b and hypotenuse measuring 2. Which best describes what Andred should

do in order to prove that AABC is a right triangle?

1) Show that a² + b2 = c2, so ZA ZR. This means AABC = ARTS, and so ZC is a right angle

and so AABC is a right triangle.

2) Show that c = 2, so AABC = ARTS and so ZC = ZS. This means ZC is a right angle, and so

AABC is a right triangle.

3) Show that c = x, so AABC = ARTS and so ZCZ ZS. This means ZC is a right angle, and so

ABC is a right triangle.

O

4) Show that c = r, so AABC ~ ARTS and so ZC ~ ZS. This means ZC is a right angle, and so

AABC is a right triangle.

Answer:

The correct option is;

2) Andrea should show that c = 2 so ∡ABC = ∡RTS and ∡C = ∡S hence ∡C is a right angled triangle hence ΔABC is a right triangle

Step-by-step explanation:

Here, we have that the given sides of the triangle are a, b and c and therefore, whereby Andrea is able to draw the two sides of the right triangle with sides = a and b and the third, hypotenuse, side as equal to 2, we know that since the length of the hypotenuse = 2, then we have;

2² = a² + b²

However, we are told that c² = a² + b²

Therefore, c = 2 hence, Andrea should show that c = 2 so ΔABC = ΔRTS and ∡C = ∡S hence ∡C is a right angled triangle since it is the angle opposite to the hypotenuse c and therefore, ΔABC is a right triangle.

8 0
3 years ago
Whats the value of X
kompoz [17]

Answer:

I am not sure

Step-by-step explanation:

I think if you look through and keep waiting for answers you'll eventually get it

8 0
2 years ago
Buddy painted (1/5) of the 320 nutcrackers.How many nutcrackers did buddy paint
just olya [345]

Answer:

64

Step-by-step explanation:

Given that,

Buddy painted (1/5) of the 320 nutcrackers.

We need to find how many nutcrackers did buddy paint. It can be calculated by finding (1/5) of 320.

x=\dfrac{1}{5}\times 320\\\\=64

Hence, he painted 64 nutcrackers.

3 0
3 years ago
Read 2 more answers
Can someone please help me it's due by tomorrow.
ikadub [295]

Answer:

Yea I can help you

was there supposed to be a picture included.

Step-by-step explanation:

8 0
3 years ago
75 percent of 104 is the same as 80 percent of what number?
Mashutka [201]
104*.75=78
78/8=9.75(divide by 8 because 80%/8=10%)
9.75*10=97.5
97.5*.8=78

75% of 104 is 78 which is also 80% of 97.5

Your answer is 97.5
8 0
3 years ago
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