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3 years ago

−t=9(t−10) what is t

Mathematics

1 answer:

Luda [366]3 years ago

7 0

Answer:

t = 9

Step-by-step explanation:

-t = 9(t - 10)

First, distribute the 9.

-t = 9t - 90

Next, add subtract 9t from both sides.

(-t) - 9t = (9t - 90) - 9t

-10t = -90

Divide both sides by -10. When you divide a negative by another negative, they cancel each other out.

(-10t)/-10 = (-90)/(-10)

t = 9

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In circle O, what is m∠MAJ? °

mr_godi [17]

See the attached figure.

m ∠KAJ = 170° & m ∠LAM = 80°

We should know that :

m ∠KAJ + m ∠LAM + m ∠KAL + m ∠MAJ = 360°

∴ m ∠KAL + m ∠MAJ = 360° - (m ∠KAJ + m ∠LAM)

∴ m ∠KAL + m ∠MAJ = 360° - (170°+80°) = 360° - 250° = 110°

But : m ∠KAL = m ∠MAJ ⇒⇒⇒ Opposite angles.

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