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madreJ [45]
2 years ago
7

Resource managers need to determine the number of years after which purple loosestrife will cover more than 850 acres of the wet

land.
Fill in the values of A, b, and c to write an inequality modeling the number of years, t, for which purple loosestrife will cover more than 850 acres of the wetland.

A(b)^t>c
Mathematics
2 answers:
AnnyKZ [126]2 years ago
6 0

Answer:

500(1.2)^t>850

Step-by-step explanation:

PLATO!!

tatiyna2 years ago
4 0

Answer:500(1.2)^t> 850

Step-by-step explanation:

got it right on the test

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Help if u can.
adelina 88 [10]

Answer:

It would be the 4th one and the last one I think

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
The mean SAT score in mathematics, M, is 600. The standard deviation of these scores is 48. A special preparation course claims
kupik [55]

Answer:

Step-by-step explanation:

The mean SAT score is \mu=600, we are going to call it \mu since it's the "true" mean

The standard deviation (we are going to call it \sigma) is

\sigma=48

Next they draw a random sample of n=70 students, and they got a mean score (denoted by \bar x) of \bar x=613

The test then boils down to the question if the score of 613 obtained by the students in the sample is statistically bigger that the "true" mean of 600.

- So the Null Hypothesis H_0:\bar x \geq \mu

- The alternative would be then the opposite H_0:\bar x < \mu

The test statistic for this type of test takes the form

t=\frac{| \mu -\bar x |} {\sigma/\sqrt{n}}

and this test statistic follows a normal distribution. This last part is quite important because it will tell us where to look for the critical value. The problem ask for a 0.05 significance level. Looking at the normal distribution table, the critical value that leaves .05% in the upper tail is 1.645.

With this we can then replace the values in the test statistic and compare it to the critical value of 1.645.

t=\frac{| \mu -\bar x |} {\sigma/\sqrt{n}}\\\\= \frac{| 600-613 |}{48/\sqrt(70}}\\\\= \frac{| 13 |}{48/8.367}\\\\= \frac{| 13 |}{5.737}\\\\=2.266\\

<h3>since 2.266>1.645 we  can reject the null hypothesis.</h3>
6 0
3 years ago
Read 2 more answers
How do you add and subtract decimals as easily as you do whole numbers?
Gwar [14]
You can also multiply the decimals by a multiple of 10 to turn them I to whole numbers. Just make sure you multiply them both by the same multiple of 10 and divide them back before you write your answer!
8 0
3 years ago
What is 1/4 times (3x7)
rjkz [21]

Answer:

I believe it is 5.25

Step-by-step explanation:

if you multiply 3 and 7 then divide by 4 you will get 1 fourth of 21 which is 5.25 !!

4 0
2 years ago
Your bedroom ceiling if 10 feet high and is two-thirds as high as the living room ceiling. Write and solve an equation to find t
timurjin [86]
Ht of ceiling = 10 ft which is two-thirds of living rm ceiling
Ht of living rm ceiling = 2/3x = 10 ft
2/3h = 10 ft
2/3h times 3/2 to solve for h = 10 times 3/2
h = 30/2
h = 15 ft
5 0
2 years ago
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