8≤r-14z+4≥2zhelp me plz

Mathematics

1 answer:

Nikitich [7]3 years ago

6 0

The answer for the first one is
$22 \leqslant r$
You have to add both sides by 14 and you will get my answer.

I'm sorry I don't know the answer for the second one.

Hope this helps though!

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Question 12 1 pts If the population of a country is reported in the year 1990 as 471.56 million and in the year 2000 as 492.53 m

I am Lyosha [343]

Answer:

526.39 million

Step-by-step explanation:

The exponential equation can be written as ...

p(t) = 471.56(492.53/471.56)^(t/10)

Then p(25) ≈ 525.75 . . . . million

The closest answer choice is 526.39 million.

Comment on the answer choice

Reverse-engineering the answer, we find it was computed using the exponential equation ...

p(t) = 471.56e^(0.0044t)

p(25) = 471.56·1.116278 ≈ 526.39

The k factor in the exponent is inappropriately rounded from 0.004350903. You cannot use a 2-significant-figure constant to arrive at an accurate 5-significant-figure answer.

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3 years ago

In 1992, the moose population in a park was measured to be 4260. By 1996, the population was measured again to be 3660. If the p

masha68 [24]

In 1992, the moose population in a park was measured to be 4260. By 1996, the population was measured again to be 3660. If the population continues to change linearly: A.) Find a formula for the moose population, P , in terms of t , the years since 1990. P ( t ) = B.) What does your model predict the moose population to be in 2008?

Answer:

Model predict the moose population to be in 2008 is 1860

Solution:

Let us consider this problem on graph, taking the x axis to be years since 1990 and y on the graph be the number of moose

We have two points on the graph: (2, 4260) and (6, 3660)

Using the slope formula we can find the slope :

$\mathrm{m}=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$