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Vsevolod [243]
2 years ago
15

Write an expression for 7 times t

Mathematics
1 answer:
Marysya12 [62]2 years ago
8 0

Answer:

7t

Step-by-step explanation:

7 \:  times \:  t = 7t

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Angle DEF is a right triangle. If FE = 12 and DE = 5, find DF.
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DF = 13

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Could someone please help me with this? Solution set of lx^2+mx+n=0 is...?
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Answer:

Simplifying

lx2 + mx + n = 0

Solving

lx2 + mx + n = 0

Solving for variable 'l'.

Move all terms containing l to the left, all other terms to the right.

Add '-1mx' to each side of the equation.

lx2 + mx + -1mx + n = 0 + -1mx

Combine like terms: mx + -1mx = 0

lx2 + 0 + n = 0 + -1mx

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Remove the zero:

lx2 + n = -1mx

Add '-1n' to each side of the equation.

lx2 + n + -1n = -1mx + -1n

Combine like terms: n + -1n = 0

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lx2 = -1mx + -1n

Divide each side by 'x2'.

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Simplifying

l = -1mx-1 + -1nx-2

Step-by-step explanation:

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