All categories

4 years ago

I really don’t understand this question and I don’t know what to do

Mathematics

1 answer:

trasher [3.6K]4 years ago

5 0

I would assume it is 0% for the minimum as there is a chance that rangers didn’t see anything and 65% for the highest as that is all the people that saw giraffe. I am really unsure though.

My second answer is minimum is 55.25% and the maximum is 65%. But once again I ain’t sure and logically I would go for my first answer

You might be interested in

What will be the total cost of the cell phone plan for 6 months of use?

sasho [114]

According to the graph, the answer is C. 150

8 0

3 years ago

Read 2 more answers

As a bowl of soup cools, the temperature of the soup is given by the twice-differentiable function H for 0<img src="https://tex.

Aleks04 [339]

The rate of change of temperature with time at a point in time is given by

the derivative of the function for the temperature of the soup.

The correct responses are;

a) H'(5) is approximately -2.6 degrees Celsius per minute.

b) Yes

c) The equation for the line tangent is y = -3.6·t + 90.8
The approximate value of C(5) is 72.8 °C

d) The rate of change of the temperature of the soup at t = 3 minutes is -3.6 degrees Celsius per minute.

Reasons:

a) From the data in the table, we have;

The approximate value of H'(5) is given by the average value of the rate of

change of the temperature with time between points, t = 3, and t = 8

Therefore;

$\displaystyle H'(5) = \mathbf{\frac{H(8) - H(3)}{8 - 3}}$

Which gives;

$\displaystyle H'(5) = \frac{80 - 67}{8 - 3} = \mathbf{2.6}$

Therefore, H'(5) = -2.6°C per minute

b) Given that the function is twice differentiable over the interval, 0 ≤ t ≤ 12, the function for the change in temperature is continuous in the interval 0 ≤ t ≤ 12

At t = 0, H(0) = 90 °C

At t = 12, H(12) = 58 °C

58 °C < 60 < 90 °C

Therefore, there exist a temperature, of 60 °C between 90° C and 58 °C

c) The given derivative of C is, $C'(t) = \mathbf{-3.6 \cdot e^{-0.05 \cdot t}}$

At t = 3, we have;

$The \ slope \ at \ t = 3 \ is \ C'(3) = -3.6 \cdot e^{-0.05 \times 3} \approx -3.1$

Therefore, we have;

y - 80 ≈ -3.1 × (x - 3)

The equation for the tangent is; y = -3.6 × (x - 3) + 80

y = -3.6·x + 10.8 + 80 = -3.6·x + 90.8

The equation for the tangent is; y = -3.6·x + 90.8

The value of C(5) is approximately, C(5) ≈ -3.6 × 5 + 90.8 = 72.8

C(5) ≈ 72.8°

d) Based on the the model above, the rate at which the temperature of the

soup is changing at t = 3 minutes is -3.6 degrees per minute.

Learn more about calculus and concepts here:

brainly.com/question/20336420

8 0

3 years ago

A bond that appreciates 4% per year will be worth $146 in five years. find the current value.

Anastasy [175]

Answer:

$120

Step-by-step explanation:

Let the initial value of bond be $X

The future value of any bond is calculated by formula

FV= PV(1+r)^n

where

FV is future value of bond
PV is present value of bond
r is the rate that at which value of bond appreciate
n is the number of years of maturity

In the problem given

FV= $146

r = 4% = 0.04 (dividing 4 by 100 we get 0.04)

n = 5

substituting these value in formula

$146 = X(1+0.04)^5\\=> X = 146/1.04^5\\=> X = 120$

PV =$X = $120

Hence current value of bond is $120.

4 0

4 years ago

please help what is seventy three thousanths!! in number form please please will give brainly or points just plaseeeeeeeeeeeeeee

Ksju [112]

hope that helps :)

8 0

4 years ago

2x = 6+ (-18) I need the answer

JulijaS [17]

Answer:

x= -6

Step-by-step explanation

1: subtract

2: divide

3: simplify

7 0

4 years ago