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3 years ago

A segment with endpoints on the circle is a _____.

Mathematics

1 answer:

ziro4ka [17]3 years ago

7 0

Answer:

A segment which ends points on a circle is a Chord.

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Write the expression in the form a+bi.<br> √ -4 - √144

Lesechka [4]

Answer:

-12 + 2i

Step-by-step explanation:

$\sqrt{ - 4} - \sqrt{144} \\ \\ = \sqrt{ - 1 \times 4} - \sqrt{144} \\ \\ = \sqrt{ - 1} \times \sqrt{4} - \sqrt{144} \\ \\ = i \times 2 - 12 \\ \\ = - 12 + 2i \\ \implies \: a + bi$

8 0

3 years ago

Compare the value of the following expression with zero. 5a^3b^2/a+b, where a<0, b<0

ira [324]

Answer:

The given expression will be greater than zero.

Step-by-step explanation:

If a < 0 and b < 0, then 5a^3 is < 0 (5a^3) is negative;

but b^2 is > 0.

Then (5a^3)*(b^2) < 0

and if we divide this quantity by a + b (which is negative), the end result will be > 0.

3 0

3 years ago

At sea level, the boiling point of water is 100°C. At an altitude of 7 km, the boiling point of water is 75.5°C. Find a linear f

enot [183]

Answer:

$T(8.85\,km) = 69.025\,^{\textdegree}C$

Step-by-step explanation:

Let assume that boiling point of water diminish linearly with the increase on altitude. Then, the expression needed is this first order polynomial:

$T(z) = \frac{75.5\,^{\textdegree}C-100\,^{\textdegree}C}{7\,km-0\,km}\cdot z + 100\,^{\textdegree}C$

The boiling point of water at a height of 8.85 km is:

$T(8.85\,km) = 69.025\,^{\textdegree}C$

7 0

3 years ago

A group of friends wants to go to the amusement park. They have $214.25 to spend on parking and admission. Parking is $6.75, and

Artyom0805 [142]

Answer:

10 friends can go to the amusement park

Step-by-step explanation:

214.25 = 6.75 + 20.75x

207.50 = 20.75x

x = 10 friends can go

8 0

3 years ago

Write a rational expression in which x simplifies to x+3/x-10

tino4ka555 [31]

Answer:

Below.

Step-by-step explanation:

[(x - 3)(x +3)] / [(x - 3)(x - 10)]

The x-3 cancels out.

4 0

3 years ago