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kap26 [50]
3 years ago
8

Assume you have collected data pairs (x, y) on a certain variety of tree. x is the number of weeks since the tree was planted an

d y is the height of the tree in inches. A plot of the data points with the best-fit line is given below. What age is predicted by the best-fit line for a height of 50 inches? 

Mathematics
2 answers:
Dvinal [7]3 years ago
8 0
I'm not sure what the answers are, but I can help. If you go to the x axis and search for 50, then go straight up to the line of best fit, you'll find the estimated height of the tree. It appears to be about 70. 

Hope this helps! 
jok3333 [9.3K]3 years ago
3 0
<h2>Answer:</h2>

The age as is predicted by the best-fit line for a height of 50 inches is:

                                    29 years.

<h2>Step-by-step explanation:</h2>

We see that our given line of best fit passes through the point (0,22) and (60,80)

Hence, we will find the equation of the line of best by using the formula:

If a line passes through two point (a,b) and (c,d) then the equation of line is calculated by:

y-b=\dfrac{d-b}{b-a}\times (x-a)

Here we have: (a,b)=(0,22) and (c,d)=(60,80)

Hence, the equation of line is:

y-22=\dfrac{80-22}{60-0}\times (x-0)\\\\\\y-22=\dfrac{58}{60}\times x\\\\\\y=0.966667 x+22

Now we are asked to find the value of x when y=50

Hence, on putting y=50 we have:

x=28.9325

which is approximately equal to 29

Hence, the age as is predicted by the line of best fit is:

                             29 years.

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What is the correct answer?
Tasya [4]

Given:

The function is

f(x)=(x+3)^2(x-5)^6

To find:

The zeros of the given function.

Solution:

The general form of polynomial is

P(x)=a(x-c_1)^{m_1}(x-c_2)^{m_2}...(x-c_n)^{m_n}       ...(i)

where, a is a constant, c_1,c_2,...,c_n are zeros of respective multiplicities m_1,m_2,...,m_n.

We have,

f(x)=(x+3)^2(x-5)^6

On comparing this with (i), we get

c_1=-3,m_1=2

c_2=5,m_2=6

It means, -3 is a zero with multiplicity 2 and 5 is a zero with multiplicity 6.

Therefore, the correct option is B.

5 0
3 years ago
Moira borrowed $4,500 from her grandfather to pay for her first year of college. Three years later, she repaid the $4,500 a long
IgorC [24]

Answer: The annual interest rate is 1.06%

Step-by-step explanation: This is a simple interest computation.

The formular for a simple interest is given as;

I = (P ×R × T)/100

Where I represents the interest paid,

P represents Principal borrowed at the beginning

R represents the rate at which the interest is calculated

T represents the Time measured in number of years

If the interest is calculated as I = (P×R×T)/100, we should first of all make R the subject of the formular;

Multiply both sides by 100

100I = P×R×T

Divide both sides of the equation by P and T

(100I)/(P × T) = R

Now we can insert the values into the rearranged formular

(100 × 143)/(4500 × 3) = R

14,300/13,500 = R

143/135 = R

1.0592592593 = R

Therefore, R which is the rate of interest equals approximately 1.06%

5 0
3 years ago
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OLga [1]
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6 0
3 years ago
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sashaice [31]
I don’t know I’m only in 7th grade but 56
3 0
3 years ago
Suppose f (x) = x^3 . Find the graph of f (x - 4)
bekas [8.4K]

Answer:

B

Step-by-step explanation:

Given that ;

f(x)= x³

f(x)-4 = x³- 4

See attached graph using the graph tool

5 0
3 years ago
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