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3 years ago

Ordering Rational Numbers -2.2 > -2.42 O True O False

Mathematics

1 answer:

mrs_skeptik [129]3 years ago

3 0

Answer:

Its False because once a decimal becomes a negative it is not a whole or natural number from what I know.

Step-by-step explanation:

I hope this helps!

let me know too if its right!

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A population of insects, in thousands, can be molded using the function (t)= 1.75(0.97)x

Dominik [7]

Question:

A population of insects, in thousands, can be modeled using the function

$p(t) = 1.75(0.97)^t$ , where t is time in months. Which statement best

describes the population of insects?

A. The population is decaying at a rate of 3% each month.

B. The population is decaying at a rate of 25% each month.

C. The population is growing at a rate of 75% each month.

D. The population is growing at a rate of 97% each month.

Answer:

A. The population is decaying at a rate of 3% each month.

Step-by-step explanation:

Given

$p(t) = 1.75(0.97)^t$

Required

True statement about the function

From the options, we can see that we are to answer the question on the basis of decay and growing rates.

An exponential form is:

$y=ab^x$

Compare to $p(t) = 1.75(0.97)^t$

$b= 0.97\\$

If $b > 1$ , then $b = 1 + r$ r represents growth rate

else, $b= 1-r$ r represents decay rate

Since b < 0.97:

$0.97= 1-r$

$r = 1 - 0.97$

$r = 0.03$

$r = 3\%$

$r = 0.03$

7 0

3 years ago

10 x 12 – 14 + 2 + 15 =

kolbaska11 [484]

Answer:

Your answer of 10 x 12 - 14 +2+15 =123

8 0

3 years ago

Find the median of the data set below? -12/4, 18/5, -2.5, 1/5, 10

nirvana33 [79]

-12/4= -3

18/5= 3.6

-2.5= -2.5

1/5= .2

10= 10

Ordered) -12/4, -2.5, 1/5, -2.5, 10

The median is 1/5 since it's in the middle of all five numbers.

Hope I could help! :)

5 0

4 years ago

If we are given x such that 25^x-9^y=18 and 5^x-3^y=3, compute 5^x+3^y.

leonid [27]

25 = 5*5 and 9 = 3*3, which we can exploit to write

$25^x-9^y=(5^2)^x-(3^2)^y=5^{2x}-3^{2y}=(5^x)^2-(3^y)^2$

so that this expression is actually a difference of squares. We can factorize this to get

$(5^x-3^y)(5^x+3^y)=18$

and given that $5^x-3^y=3$ , we divide both sides by this to get

$5^x+3^y=\dfrac{18}3=\boxed{6}$

7 0

3 years ago

The product of two consecutive integers is 72. find the integers

Margaret [11]

Answer:

the integers are 8 and 9

Step-by-step explanation:

consecutive means one right after the other. 9 is right after 8. and its product is 72, well 8x9 is 72.

6 0

3 years ago