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4 years ago

I NEED HELP, PLZZ & THXXX

Mathematics

1 answer:

Korolek [52]4 years ago

6 0

Answer:

The growth rate per year is 20,988.

The population of the city in 2005 is 269,940.

Step-by-step explanation:

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How do i solve this? (by factoring)<br> x(x+3)=x+8

AfilCa [17]

$\sf x\left(x+3\right)=x+8\\\\\\\\x^2+3x=x+8\\\\\\\\\sf \boxed{\sf\mathrm{Subtract\:}8\mathrm{\:from\:both\:sides}}\\\\\\\\\sf x^2+3x-8=x+8-8\\\\\\\\\sf \boxed{\sf \mathrm{Simplify}}\\\\\\\\\sf x^2+3x-8=x\\\\\\\\\boxed{\sf \mathrm{Subtract\:}x\mathrm{\:from\:both\:sides}}\\\\\\\\\sf x^2+3x-8-x=x-x\\\\\\\\\boxed{\sf \mathrm{Simplify}}\\\\\\\\\sf x^2+2x-8=0\\\\\\\\\boxed{\sf factor~ x^2+2x-8=0}\\\\\\\\\sf \left(x-2\right)\left(x+4\right)=0$

$\sf \boxed{\sf \mathrm{Using\:the\:Zero\:Factor\:Principle:\quad \:If}\:ab=0\:\mathrm{then}\:a=0\:\mathrm{or}\:b=0}\\\\\\\\\sf x-2=0\quad \mathrm{or}\quad \:x+4=0\\\\\\\\\boxed{\sf \{x=2\}}\\\\\boxed{\sf \{x=-4 \} }$

3 0

3 years ago

A student is chosen at random from a large statistics class and asked how much time (in whole hours) she spent studying during t

allochka39001 [22]

Answer:

Step-by-step explanation:

The sample space is the total possible values of an experiment or research. Since the total number of hours is 24, then the total possible number (or the limit she can use have) is 24. This she cannot exceed this 24 hour limit. Then we call this the total possible outcome and thus the sample space.

6 0

3 years ago

The 7th grade consumed 6 litters of chocolate milk at lunch. How many centilitres of chocolate milk did they consume?

anzhelika [568]

Answer:

600 centilitres

Step-by-step explanation:

1 litter = 100 centiliters

5 0

4 years ago

6. Find the value of x.

iris [78.8K]

Answer:

d.51

Step-by-step explanation:

Let the 3rd angle of the triangle be y. Then:

y+117=180

y=63

Then:

x=180-63-66

=51°

4 0

3 years ago

a company uses two vans to transport workers from a free parking lot to the workplace between 7 and 9 a.m. One can has 14 more s

ale4655 [162]

Let the number of seats of the smaller van be "x". Since it travels two times in the morning, it will be 2x. The bigger van has 14 more seats than the small one, so it will be x + 14. To find the value of x, the formula would be,

65 = 2x + x + 14
65 = 3x + 14
65 - 14 = 3x
51 = 3x
51/3 = x
17 = x

The value of x is 17.

Van A = 17 seats + 14 seats = 31 seats
Van B = 2 (17 seats) = 34 seats

Van A has 31 seats for 31 people for a single trip.
Van B has 17 seats, and since it has two trips, it can transport 34 people.

4 0

3 years ago