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charle [14.2K]
3 years ago
5

What number must be added to the expression below to complete the square ? x2+7x

Mathematics
1 answer:
stellarik [79]3 years ago
6 0

Answer:

you must add 2 to the equation

Step-by-step explanation:

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A circular garden has a diameter of 18 meters. What is the circumference of the garden?
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3.14 * 18= 56.52

Answer: 56.52

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A kinder garden class has 9 girls and 11 boys in class what percent of the class are girls
ivolga24 [154]

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45%

Step-by-step explanation:

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3 years ago
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2x + 3y = 3 y = 8 – 3x
pentagon [3]
2x + 3y = 3 y = 8 – 3x                     
we have 2 equations

first equations: <span>2x + 3y = 3 y
</span>the second equation: 3y = 8 – 3x => <span>8-3x=3y
</span><span>------------------------------------------------------------
2x+3y=3y</span>2x=3y-3y
2x=0
x=0

8-3x=3y
8-0=3y
8=3y
y=8/3

S={x=0 ; y=8/3 } 

8 0
3 years ago
Please help with this one
tino4ka555 [31]

The answer will be A-1188 in²

3 0
3 years ago
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31 and 81 are in the bottom corners of the triangle X is at the top . What is X?
kati45 [8]

Answer:

The top angle of the triangle is, X = 68°.

Step-by-step explanation:

Let there is a triangle named PQR with bottom corner angles ∠ P and ∠ Q and the ∠ R is the angle at the top.

Now, given that ∠ P = 31° and ∠ Q = 81° and we have to find out ∠ R i.e. X.

In Δ PQR, we know, ∠ P + ∠ Q + ∠ R = 180°

⇒ 31° + 81° + X = 180°

⇒ X = 68°

Therefore, the top angle of the triangle is 68°. (Answer)

7 0
3 years ago
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