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makvit [3.9K]
3 years ago
13

What is the value of x? ​

Mathematics
1 answer:
Elan Coil [88]3 years ago
7 0

Answer:

17

Step-by-step explanation:

(6x+10)+(x+17)+(4x-34)=180(being sum of all angle of a triangle)

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15 ÷ 3 = Δ
Vlada [557]

Answer:

A)5 is the answer

Step-by-step explanation:

this is the answer

7 0
3 years ago
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No links, downloads, or anything of the sort. I will give brainliest!!!
TiliK225 [7]

Answer:

The answer is D

Step-by-step explanation:

5 0
2 years ago
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Find the next two terms in this<br> sequence.<br> 1, 2, 6, 24, 120, [?],[]
Bogdan [553]

1x1=1

1x2=2

2x3=6

6x4=24

24x5=120

120x6=720

720x7=5040

the answer is 720 and 5040

4 0
2 years ago
What is the first step in solving the equation x2 - 25 = 0?
Finger [1]

Answer:

first step - make x² the subject of the formula

x² = 25

second step :

find the square root of both sides

√x² = √25

x = 5

Step-by-step explanation:

5 0
2 years ago
Find the value of x³+ y³ + z³ – 3xyz if x² + y² + z² = 83 and x + y + z = 15​
raketka [301]

identity used is

x³ + y³+ z³– 3xyz = (x + y + z) (x² + y² + z² – xy – yz – zx).

then use

(x+y+z)² = x²+y²+z²+2(xy+yz+xz)

225= 83 + 2(xy+yz+xz)

xy+yz+xz = (225-83)/2

xy+yz+xz= 142/2

xy+yz+xz= 71

ok

now use identity

x³ + y³+ z³– 3xyz = (x + y + z) (x² + y² + z² – xy – yz – zx).

now

x³ + y³+ z³– 3xyz = 15 (83 – xy – yz – zx).

= 15[83 - (71)]

= 15×12

=180

4 0
3 years ago
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