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3 years ago

P=q+2 2p+3q=-26 help

2 answers:

5 0

P=q+2 making 2p+3q=-26 become:

2(q+2)+3q=-26 perform indicated multiplication on left side

2q+4+3q=-26 combine like terms on left side

5q+4=-26 subtract 4 from both sides

5q=-30 divide both sides by 5

q=-6, and from earlier we know that p=q+2 so

p=-4

Thus (p,q)=(-4,-6)

kompoz [17]3 years ago

3 0

All you have to do is plug and solve...

2(q+2) + 3q = -26
2q + 4 + 3q = -26

Subtract 4 from the left side and move it to the right...

2q + 4 + 3q = -26
- 4 - 04
_________________
2q + 3q = -30

Now add 3q and 2q together and you get 5q, next divide...

5q = -30
_______
5 5

Finally, you get q equal to negative 6 (-6)!

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(b)

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3 years ago

The number y of deer in a county after x years can be modeled by y=0.75x^2 + 10.5x + 1300. When were there about 2000 deer? Roun

Lemur [1.5K]

Answer:

24 years

Step-by-step explanation:

We are told that the model of number of deers is;

y = 0.75x² + 10.5x + 1300

Where;

y represents number of deers

x represents number of years

Now, we want to find how many years it will take to get to 2000 deers.

Thus;

2000 = 0.75x² + 10.5x + 1300

0.75x² + 10.5x + 1300 - 2000 = 0

0.75x² + 10.5x - 700 = 0

Using quadratic formula, we have;

x = [-b ± √(b² - 4ac)]/2a

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x = [-10.5 ± √2210.25]/(1.5)

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3 years ago

Given the function f(x)=|x+5|,find each of the following<br> F(10),f(-5),f(0)

stira [4]

I hope this helps you

x=10 f(10)=|10+5|=|15|=15

x=-5 f(-5)=|-5+5|=|0|=0

x=0 f(0)=|0+5|=|5|=5

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