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Leokris [45]
3 years ago
14

The number of mice tripled each year for the past 4 years in the small rural town. Which of the following characteristics best d

escribes the function?
The graph is a curved line that increases.
The graph is V-shaped the increases then decreases.
The graph is a straight line that increases.
The graph is U-shaped the increases then decreases.
Mathematics
1 answer:
saul85 [17]3 years ago
4 0

Answer:

The graph is a curved line that increases.

Step-by-step explanation:

If the mice triple in population every year then the population is increasing an at exponential rate by multiplying the previous mouse count by 3. I have included a image of a graph that would represent this.

Thus the graph is a curved line that increases, it is not a v shape because the population will constantly increase by 3 times each year, it is not a straight line because the mice population is not increasing in a linear fashion and the population is not U shaped as the population will not decrease as long as the mice population triples every year.

Hope this helps!

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Clare estimates that her brother is 4 feet tall. When they get measured at the doctor’s office, her brother’s height is 4 feet,
alekssr [168]

Answer:

  • 1. Yes
  • 2. 2 inches
  • 3. 4%

Step-by-step explanation:

  • Estimated height is 4 feet
  • Measured height is 4 feet 2 inches

1. The measurement is actual and should be considered as such. Estimate is approximate most of the time.

2. <u>The error is:</u>

  • 4 feet 2 inches - 4 feet = 2 inches

3. <u>Percent error:</u>

  • 2 inches/4 feet 2 inches × 100% =
  • 2 inches / 50 inches × 100% =
  • 0.04× 100% =
  • 4%
5 0
2 years ago
A researcher wishes to​ estimate, with 9090​% ​confidence, the proportion of adults who have​ high-speed Internet access. Her es
Sunny_sXe [5.5K]

Answer:  a) Required minimum sample size= 219

b) Required minimum sample size= 271

Step-by-step explanation:

As per given , we have

Margin of error : E= 5% =0.05

Critical z-value for 90% confidence interval : z_{\alpha/2}=1.645

a) Prior estimate of true proportion: p=28%=0.28

Formula to find the sample size :-

n=p(1-p)(\dfrac{z_{\alpha/2}}{E})^2\\\\=0.28(1-0.28)(\dfrac{1.645}{0.05})^2\\\\=218.213856\approx219

Required minimum sample size= 219

b) If no estimate of true proportion is given , then we assume p= 0.5

Formula to find the sample size :-

n=0.5(1-0.5)(\dfrac{z_{\alpha/2}}{E})^2\\\\=0.25(\dfrac{1.645}{0.05})^2\\\\=270.6025\approx271

Required minimum sample size= 271

8 0
2 years ago
What can be useful when finding the value of a variable
jeyben [28]

Writing an equation would be most helpful, but depending on the situation drawing a diagram or reading a table could work better.

8 0
3 years ago
The princess examines one plant and can’t seem to locate its roots. The plant is labeled as p(x)=x^2+x+3 Which values should the
AleksAgata [21]
Let's actually find the roots, using the quadratic formula:

<span>p(x)=x^2+x+3 gives us a=1, b=1 and c=3.

                 -1 plus or minus sqrt(1^2-4(1)(3))
Then x = -----------------------------------------------          
                                           2

The discriminant here is negative, so the roots x will be complex:

              -1 plus or minus sqrt(-11)      -1 plus or minus i*sqrt(11)
       x = ---------------------------------- = -------------------------------------
                          2                                                 2

These are irrational roots; they cannot be expressed as the ratios of integers.</span>
8 0
3 years ago
I Need The Answer Plz Geometry Is Hard!!
otez555 [7]

Answer:

14

Step-by-step explanation:

In a triangle, the midline joining the midpoints of two sides is parallel to the third side and half as long, so

FB = EC/2

2x - 6 = 44/2

2x - 6 = 22

2x = 22 + 6

2x = 28

x = 28/2

x = 14

6 0
3 years ago
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