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Bad White [126]
3 years ago
8

Simpligy the expression 7(x+7)-3(x+3)

Mathematics
1 answer:
Irina18 [472]3 years ago
6 0

We will use the distributive property, where a(b+c) = ab+ac and a(b-c) = ab-ac.

7(x+7)-3(x+3)

=7x+49-(3x+9)

=4x+40

Therefore, the simplified expression is 4x+40.

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3 0
3 years ago
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solong [7]

Answer:

Step-by-step explanation:

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3 years ago
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horrorfan [7]

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3.8465 *10^7 square kilometers

Step-by-step explanation:

The surface area of a sphere can be found using the formula SA=4\pi r^2. Since the diameter is 3500 km then its radius is half of this. 3500 divided in two is 1,750 units. Substitute r=1,750.

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7 0
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