Ask question

Ask question

All categories

3 years ago

13

Over 25.5 days, a pond's water level changed by an average of −0.32 centimeter each day. What was the total change in the water

level?

2 answers:

Morgarella [4.7K]3 years ago

5 0

Answer:

-8.16

Step-by-step explanation:

i did the test and that other person that said 8.16 forgot the negitive sign

Marianna [84]3 years ago

3 0

8.16 cm is the total change in water level.

You might be interested in

What is w(4) for the function w(x)=3x+7<br><br>a)19<br>b)14<br>c)33

dalvyx [7]

The answer for w(4)=3x+7 is a)19

4 0

3 years ago

Read 2 more answers

After extensive measurements of the time necessary to complete the first homework assignment, a teacher determines that there is

MaRussiya [10]

Answer: -1.55

Step-by-step explanation:

Given : Mean : $\mu=100$

Standard deviation : $\sigma=20$

Sample size : $n=60$

Sample mean : $\overline{x}=96$

The test statistic for the population mean is given by :-

$z=\dfrac{\overline{x}-\mu}{\dfrac{\sigma}{\sqrt{n}}}$

$\Rightarrow\ z=\dfrac{96-100}{\dfrac{20}{\sqrt{60}}}=-1.54919333848\approx-1.55$

Hence, the value of z statistic = -1.55

4 0

2 years ago

Which second degree polynomial function f(x) has a lead coefficient of 3 and roots 4 and 1?

Stella [2.4K]

Answer:

f(x) = 3x² - 15x + 12

Step-by-step explanation:

Given f(x) has roots x = a and x = b, then

(x - a) and (x - b) are the factors

f(x) is then the product of the factors

f(x) = a(x - a)(x - b) ← where a is a multiplier

Given roots are x = 4 and x = 1, then

(x - 4) and (x - 1) are the factors

With a = 3, then

f(x) = 3(x - 4)(x - 1) ← expand factors using FOIL

= 3(x² - 5x + 4) ← distribute

= 3x² - 15x + 12

7 0

3 years ago

Read 2 more answers

Approximately 6 out of 8 homeowners own a cell phone. What percent of homeowners do not have a cell phone? *

Scilla [17]

Answer:

6/8×100=75%

100-75=25

the answer is 25

6 0

3 years ago

Last question need help on this

lozanna [386]

The answer is B) which is letter E . hope this helps <3

6 0

2 years ago