3 years ago

Which number replaces the box to make this a true number sentence?

Mathematics

1 answer:

valkas [14]3 years ago

8 0

Answer:

C. 5

Step-by-step explanation:

first expression 5 × (9-3) = 30

second one 45 - 3x

to make it 30 = 30

x should be = 5

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aliina [53]

Answer:

Step-by-step explanation:

Base is right triangle, so:

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3 years ago

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schepotkina [342]

Answer:

d. -24

Step-by-step explanation:

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4 years ago

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melisa1 [442]

9514 1404 393

Answer:

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Step-by-step explanation:

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$\displaystyle -\sqrt{\frac{2+\sqrt{2}}{2-\sqrt{2}}}$

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Additional comment

This simplifies to -(1+√2). Your calculator can verify the choice for you.

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3 years ago

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4 years ago

If ABCD is a parallelogram, what can we say about the diagonals BD and AC?

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