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QveST [7]
3 years ago
14

• PQ²+PR²=QR²• PQ²+QR²=PR²• PR²- PQ²=QR²• PR²- QR²=PQ²​

Mathematics
1 answer:
den301095 [7]3 years ago
5 0

Answer:

Option A

{pq}^{2}  +  {pr}^{2}  =  {qr}^{2}

Step-by-step explanation:

This is because here,

PQ is the Height of the right triangle.

QR is the Base of the right triangle.

PR is the Hypotenuse of the right triangle.

So, as according to Pythagoras Theorem,

{base}^{2}  +  {height}^{2}  =  {hypotenuse}^{2}

Also,

{pq}^{2}  +  {qr}^{2}  =  {pr}^{2}

Not,

{pq}^{2}  +  {pr}^{2}  =  {qr}^{2}

Hence, Option A is not correct.

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Combine like terms.<br> 9y2 + 9(7y2-5) =<br> I need this for now please
nataly862011 [7]

Answer:

72y2-45

Step-by-step explanation:

9y2 + 9(7y2 - 5)

you multiply the 9 by the stuff in the parentheses

9y2 + 63y2 - 45

72y2-45

7 0
3 years ago
Which ratio would help find the distance the person is from the flag pole ¨X¨ if the angle is elevation of 30 degrees.
WINSTONCH [101]

Answer:

There are three major trignometric ratios in mathematics and they are:

sine(sin), cosine(cos) and tangent(tan). A popular acronym is used in recalling the formula for each ratio and it is: SOH-CAH-TOA.

Sine(x) = Opp/Hyp

Cosine(x) = Adj/Hyp

Tangent(x) = Opp/Adj

Now, the Hyp is the hypothenus of the triangle and it is the side opposite to angle 90. The opposite and adjacent is kind of relative depending on the angle been considered. For this case, we are considering angle 30 which the opposite side is 60 and the remaining side becomes the adjacent

Step-by-step explanation:

tan 30 = 60/x

5 0
3 years ago
Im giving brainliest pls heelp
dem82 [27]

Answer:

No entendí lo siento

Step-by-step explanation:

Jummm

4 0
3 years ago
Is the sum of the areas of two smaller squares equal to the area of a large square if the sides lengths of the squares are 8 fee
77julia77 [94]
No.
The sum of the areas of the two smaller squares is 5^2 + 3^2 = 34
The area of the larger square is 8^2=64
34 does not = 64
5 0
3 years ago
I need the answer pls!!!!!!!
lesya [120]
I cannot say I'm sure as I haven't learned this myself in class, however, I think it would also be 60. Apologies if I'm incorrect!!

3 0
4 years ago
Read 2 more answers
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