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makkiz [27]
3 years ago
15

Help pls, I’m confused

Mathematics
1 answer:
Alecsey [184]3 years ago
4 0

Answer:

(x + y)² = 25

Step-by-step explanation:

The expansion of (x + y)² is

(x + y)² = x² + y² + 2xy ← substitute x² + y² = 15 and xy = 5

           = 15 + 2(5)

           = 15 + 10

           = 25

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3 times the measure of an angle is 14 less than the measure of its complement. What is the measure of the angle? 19° 57° 71° 76°
liberstina [14]

Answer:

x = 19°

Step-by-step explanation:

Let The angle be "a"

Now according to the question,

⇒ 3 × a = (90° - a) - 14° (Then remove the brackets)

⇒ 3a =  90° - a - 14°

⇒ 3 + a = 76°

⇒ 40° = 76°

⇒ a = 76/4

Now since you got 76/4 you have to make it into simplest form so it'll be :

19/1

Your answer is : a = 19°

4 0
3 years ago
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IRISSAK [1]
I got the same answer you did. I think it’s right hope this helps!
3 0
3 years ago
Susan began counting backwards from 1298 by 4's saying one number every 5 seconds. At the same time Jim begins counting forward
SpyIntel [72]
1298 - 4x =171 + 3x

Add 4x to both sides

1298 = 171 + 7x

Subtract 171 from both sides

1127 = 7x

Divide by 7 on both sides


x = 161

They will both say the number 161 at the same time.
8 0
3 years ago
Help!1!1!
Anna007 [38]

Answer: 1y=-2-3x

4x+3(-2-3x) =24----4x-6-6x=24---4x-6x=24+6---;-2x=30----x=30/-2---x=-15

             

5 0
3 years ago
Write ratio simplest terms 48/24
horsena [70]

Answer:1/2

Step-by-step explanation:

Dived by 12 and then by 2

3 0
3 years ago
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