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sergij07 [2.7K]

3 years ago

9

rat snakes produce 12to54 each year. if 8% percent of the young survives maturity,what is the maximum number of surviving offspr

ing a rat snake would be expected to produce in 9 years?

2 answers:

lilavasa [31]3 years ago

6 0

Answer:

38

Step-by-step explanation:

Since 54 is the maximum amount of offspring that ratsnakes produce we would multiple 54 by 9 giving us 486. and 8% of 486 is 38

-Dominant- [34]3 years ago

5 0

39?
Sorry if It’s wrong!!

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Please help!! I have been stuck on this question for a while

denis23 [38]

Answer:

$180\ in.^2$

Step-by-step explanation:

The area of a rectangle can is defined as $A = wl$ where w is the width and l is the length. The width in this case is 12 and the length is 15. Also it doesn't really matter what order you put it in. This gives you an area of $(15\ in.) (12\ in.) = 180\ in.^2$

8 0

2 years ago

Find all solutions of the equation in the interval [0,2π) sec(theta) +2=0

Komok [63]

I will first reveal the most obvious secret of trig: Most of the problems are 30/60/90 or 45/45/90 triangles of some sort.

$\sec \theta + 2 = 0$

$\dfrac{1 }{ \cos \theta} = -2$

$\cos \theta = - \frac 1 2$

The rule to remember is $\cos x = \cos a$ has solutions

$x = \pm a + 2 \pi k \quad$ integer $k$

Continuing where we left off, a cosine of -1/2 is a 30/60/90 triangle in the second or third quadrant; we pick second, and a little thought tells us the angle is $120^\circ$ .

$\cos \theta = - \frac 1 2$

$\cos \theta = \cos \frac {2\pi} 3$

$\theta = \pm \frac {2\pi} 3 + 2 \pi k \quad$ integer $k$

In the range we want, that's $k=0$ with the plus sign and $k=1$ with the minus, so

$\theta = \frac {2\pi} 3$ or $-\frac {2\pi} 3 + 2 \pi = \frac{4 \pi} 3$

$\theta = \frac {2\pi} 3$ or $\frac{4 \pi} 3$

6 0

3 years ago

Jane used $68 more than two-fifths of her last paycheck to purchase a new surfboard. If the surfboard cost $289, find the amount

garri49 [273]

Answer:

552.5

Step-by-step explanation:

2/5x + 68 = 289

2/5 x = 289 - 68

2/5x = 221

x = 221 * 5/2 = 552.5

I hope im right!!!

4 0

3 years ago

What is the equation to a graph with the vertex -1,3 and zeros -4 and -2

Mashutka [201]

Answer:

$f(x)=x^2+6x+8$

Step-by-step explanation:

We are given zeros as x=-4, x=-2

so, we can set up function as

$f(x)=a(x+4)(x+2)$

Vertex is at (-1,3)

It means that graph passes through point (-1,3)

so, we can plug x=-1 and f(x)=3

and then we can solve for 'a'

$3=a(-1+4)(-1+2)$

we get

$a=1$

now, we can plug it back

and we get

$f(x)=1(x+4)(x+2)$

now, we can simplify it

$f(x)=x^2+6x+8$

5 0

3 years ago

Determine the area of the figure shown. Note that each square unit is one unite in length

liq [111]

Answer:

74 units squared

Step-by-step explanation:

we know that the area of a square or rectangle is A = L × w

so we should just separate the object into it's individual rectangles/squares, solve for their areas, then add them together.

so I'll start with the middle square its length is 8 and width is 8 too.

A = 8 × 8

A = 64

now we'll move on to the other small ones to the side.

the one on the right side it's length is 2 and width is 2.

A = 2 × 2

A = 4

and then the last one on the left, Length is 3, width is 2.

A = 2 × 3

A = 6

now we'll add up all of the areas to get the total area.

Total = 64 + 4 + 6

Total = 74 units squared

6 0

3 years ago