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3 years ago

Explain the survival of the fittest.

Mathematics

1 answer:

yan [13]3 years ago

4 0

Answer:

Survival of the Fittest

There has been gradual evolution of life forms with new forms arising at different periods of history. Any population has built-in variations in characteristics which adapt it better to environment.
The characteristics which enable some population or individuals to survive better in natural conditions (climate, food, physical factors) would out-breed others (Survival of the fittest).
Adaptability is inherited and fitness is the end result of ability to adapt and get selected by nature.

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Find the y- intercept 16) y=2x-6 17) y=-3/4x+2 18)y + 2 =1/2(x-4) 19)y-4=3(x+2)

____ [38]

16) y intercept is -6
17) y intercept is 2
18) y intercept is -4...1/2 (-4) = -2 -2 = !4
19) y intercept is 10....3 × 2 + 4

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2 years ago

Which comparison is correct? 7 -7 -9 > 4 -6 > -5

ArbitrLikvidat [17]

Answer:

7 > -7

Step-by-step explanation:

-9 is not greater than -4

-6 is not greater than -5

I am not sure what 7 -7 means in your first option but if it is consistent, then yes, 7 is greater than -7.

8 0

2 years ago

If x^2=20 what is the value of x will give brainliest for answer

Schach [20]

Answer:

x² - 20 = 0

Using the quadratic formula

$x = \frac{ - b± \sqrt{( {b})^{2} - 4ac } }{2a}$

a = 1 b = 0 c = -20

So we have

$x = \frac{ - 0 ± \sqrt{ {0}^{2} - 4(1)( -20)} }{2(1)} \\ \\ x = \frac{± \sqrt{80} }{2} \\ \\ x = \frac{±4 \sqrt{5} }{2} \\ \\ \\ x = ±2 \sqrt{5} \\ \\ \\ x = 2 \sqrt{5} \: \: \: or \: \: \: x = - 2 \sqrt{5}$

Hope this helps you.

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2 years ago

Lin spent 5/6 hour on math homework and 1 3/4 hours on science homework how many hours in all did she spend on homework for both

Alenkinab [10]

Answer:2 7/12 hours.

Step-by-step explanation: First, convert 1 3/4 to improper fraction form which will give you 7/4. Then find the common denominator of 5/6 and 3/4. The common denominator is 24. 5/6=20/24. 7/4=42/24. 20/24+42/24= 2 7/12.

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3 years ago

Solve the right triangle below. Round sides to the nearest thousandth and angles to the nearest degree.

aalyn [17]

Answer:

Option 4, BC = 12.689, m∠A = 58°, and m∠C = 32°

Hope this helps!

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3 years ago