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3 years ago

The zoo had 20 successful roadrunner births. Unfortunately 15% of them died from heat exhaustion. How many survived?

Mathematics

2 answers:

ddd [48]3 years ago

5 0

Answer:

Step-by-step explanation:

First you take the starting value and multiply it by 0.15 or 15%. Then you need to subtract that value from starting value. Then you get your final answer.

Math:

20 * 0.15 = 3

20 - 3 = 17

uranmaximum [27]3 years ago

3 0

Answer:

Step-by-step explanation:

15% of 20 is three

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Neporo4naja [7]

Answer:

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2 years ago

F(x)=x what is the equation of the new function shift 8 units left shift 3 units down

nasty-shy [4]

Think of the equation of a linear function:
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Now that we know how the shifts occur, we might consider a different form of the equation for a linear function: y = a(x - h) + k here the 'a' is just our slope, 'k' is our original y intercept, and 'h' will represent the amount of horizontal shift.

So to get the desired transformations of a horizontal shift to the left of 8 and a vertical shift of down 3 from our original function y = x, we can make the following changes: y = (x + 8) - 3 Now you might be confused with how we got the 'x + 8'.. Let's consider values of 'h'. For positive values of h, the result will be a shift to the right and for negative values of h the result will be a shift to the left. So since we want a shift to the left we need to use a '-8' and when we substitute that into our new form, y = (x - h) + k you can see the sign change.

Now we can simplify of course and get the final equation: y = x + 5 or in function form f(x) = x + 5

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3 years ago

Secant jkl and jmn are drawn to circle o from an external point ,j. if jk=8,lk=4 and jm=6 what is the length of jn answer

Archy [21]

See the picture attached to better understand the problem

we know that
If two secant segments are drawn to a circle from an exterior point, then the product of the measures of one secant segment and its external secant segment is equal to the product of the measures of the other secant segment and its external secant segment.
so
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we have
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the answer is
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3 years ago

When a certain tree was first planted, it was 4 feet tall, and the height of the tree increased by a constant amount each year f

MA_775_DIABLO [31]

Answer:

Option D is the correct answer.

Step-by-step explanation:

Initial height = 4 feet

Given that the height of the tree increased by a constant amount each year for the next 6 years. At the end of the 6th year, the tree was 1/5th taller than it was at the end of the 4th year.

Let the rate of growing each year be g.

After 6 years height of tree = 4 + 6g

After 4 years height of tree = 4 + 4g

At the end of the 6th year, the tree was 1/5th taller than it was at the end of the 4th year.

That is

$4+6g=4+4g+\frac{4+4g}{5}\\\\4+6g=\frac{20+20g+4+4g}{5}\\\\20+30g=24+24g\\\\6g=4\\\\g=\frac{2}{3}ft/year$

Option D is the correct answer.

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Please add the picture.

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