All categories

3 years ago

Which of the following is equivalent to 18 more than the product of 9 6p and p - 2?

SAT

2 answers:

leva [86]3 years ago

8 0

Please don’t report me but how do I take down questions on this app?

Murrr4er [49]3 years ago

7 0

Answer:

you need to put the options

Explanation:

You might be interested in

Select all correct answers: What is critical thinking?

cupoosta [38]

Answer:

the first 3

Explanation:

I thought about it and memorizing isn't really critical

8 0

3 years ago

The carbon cycle, closely related to the cycling of oxygen throughout the environment, is tied to which of the following process

chubhunter [2.5K]

Answer:

Photosynthesis

Explanation:

6 0

2 years ago

What are all of the living and non living things in an area called?

aleksandrvk [35]

Answer:

The living parts of an ecosystem is called biotic factors, the nonliving parts are called abiotic factors.

Hope this helps! Have a great day!

Explanation:

4 0

3 years ago

PLEASE HELP

butalik [34]

Answer:

84;6

Explanation:

6 0

3 years ago

The population of two different villages are modeled by the equations shown below. The population (in thousands) is represented

PilotLPTM [1.2K]

Answer:

1990 and 2010

$y_l_w(15)=315\hspace{3}thousands\\y_l_c(15)=315\hspace{3}thousands\\y_l_w(35)=715\hspace{3}thousands\\y_l_c(35)=715\hspace{3}thousands$

Explanation:

Let:

$y_l_w=Population\hspace{3}of\hspace{3}Lewiston\\y_l_c=Population\hspace{3}of\hspace{3}Lockport$

We need to know, in what year(s) the villages had the same population, mathematically this is:

$y_l_w=y_l_c$

So:

$x^2-30x+540=20x+15\\\\Subtract\hspace{3}20x\hspace{3}from\hspace{3}both\hspace{3}sides\\\\x^2-50x+540=15\\\\Subtract\hspace{3}15\hspace{3}from\hspace{3}both\hspace{3}sides\\\\x^2-50x+525=0$

Solving for x:

Factoring

$(x-15)(x-35)=0$

Hence:

$x=15\\\\or\\\\x=35$

Therefore the year(s) which the village had the same population are:

$1975+15=1990\\\\and\\\\1975+35=2010$

In order to find the population of both cities during the year(s) of equal population, just evalue the equations at x=15 and x=35:

$y_l_w(15)=315\hspace{3}thousands\\y_l_c(15)=315\hspace{3}thousands\\y_l_w(35)=715\hspace{3}thousands\\y_l_c(35)=715\hspace{3}thousands$

7 0

3 years ago