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4 years ago

Help with Geo. Please! Picture below! Math!

Mathematics

1 answer:

Maslowich4 years ago

7 0

You add 12 and 6 up and then multiply that result by 1/2, so your answer would be 9.

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Please help me, 20 points

Yuri [45]

The answer would be c because it’s 35 minus

8 0

3 years ago

Read 2 more answers

The population of a city has decreased by 33% since it was last measured. If the current population is 20,100, what was the prev

iren [92.7K]

The answer is 30,000
20,100 / 0.67 = 30,000

5 0

2 years ago

Find the surface area of the cylinder and round to the nearest tenth.

Zolol [24]

Click the link for the answer

http.///bitily8288292

3 0

3 years ago

Find four distinct complex numbers (which are neither purely imaginary nor purely real) such that each has an absolute value of

Luda [366]

Answer:

0.5 + 2.985i
1 + 2.828i
1.5 + 2.598i
2 + 2.236i

Explanation:

Complex numbers have the general form a + bi, where a is the real part and b is the imaginary part.

Since, the numbers are neither purely imaginary nor purely real a ≠ 0 and b ≠ 0.

The absolute value of a complex number is its distance to the origin (0,0), so you use Pythagorean theorem to calculate the absolute value. Calling it |C|, that is:

$|C| = \sqrt{a^2+b^2}$

Then, the work consists in finding pairs (a,b) for which:

$\sqrt{a^2+b^2}=3$

You can do it by setting any arbitrary value less than 3 to a or b and solving for the other:

$\sqrt{a^2+b^2}=3\\ \\ a^2+b^2=3^2\\ \\ a^2=9-b^2\\ \\ a=\sqrt{9-b^2}$

I will use b =0.5, b = 1, b = 1.5, b = 2

$b=0.5;a=\sqrt{9-0.5^2}=2.958\\ \\b=1;a=\sqrt{9-1^2}=2.828\\ \\b=1.5;a=\sqrt{9-1.5^2}=2.598\\ \\b=2;a=\sqrt{9-2^2}=2.236$

Then, four distinct complex numbers that have an absolute value of 3 are:

0.5 + 2.985i
1 + 2.828i
1.5 + 2.598i
2 + 2.236i

4 0

4 years ago

837,164 and 4,508 the value of 8

eimsori [14]

In 837,164, the value of 8 is the hundred thousands place
In 4,508, the value of 8 is the ones place

hope this helps

7 0

3 years ago