3 years ago

Help me plzzzzzzz plzzzzz

2 answers:

8 0

Answer: -D=3/2

Explanation:
If a positive D is equal to -3/2 you would just have to multiply both side by a negative 1: D(-1)=-3/2(-1). After multiplying that you would get -D=3/2 because a negative time a negative is equal to a positive.

V125BC [204]3 years ago

7 0

Answer:

3/2

Step-by-step explanation:

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1. The surface area of a cone S is S= $\pi r^{2}+ \pi rl$ , where r is the radius of the base and l is the slant height.

2. The slant height l is found as follows:

$l^{2}= OC^{2}+ OB^{2}$
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$l= \sqrt{3988}=63.15$

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