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I am Lyosha [343]
4 years ago
11

How do I do this question?

Mathematics
2 answers:
Jlenok [28]4 years ago
7 0
You have to square the whole thing so you will have:
(-3X x -5Y^4)(-3X x -5Y^4)

Then you use foil factor method and you will get the answer:
9X^2 + 25Y^8
Liula [17]4 years ago
6 0
It's impossible because there are no like terms.
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Pleasantburg has a population growth model of P(t)=at2+bt+P0 where P0 is the initial population. Suppose that the future populat
Salsk061 [2.6K]

Answer: In June 2097

Step-by-step explanation:

According to the model, to find how many years t should take for  P(t)=21100 we must solve the equation  0.9t^2+6t+14000=21100. Substracting 21100 from both sides, this equation is equivalent to 0.9t^2+6t-7100=0.

Using the quadratic formula, the solutions are t_1= \frac{-6-\sqrt{6^2 -4*0.9*(-7100)}}{2*0.9}=-92.21 and t_2=\frac{-6+\sqrt{6^2 -4*0.9*(-7100)}}{2*0.9}=85.54. The solution t_1=-92.21 can be neglected as the time t is a nonnegative number, therefore t=t_2=85.54.

The value of t is approximately 85 and a half years and the initial time of this model is the January 1, 2012. Adding 85 years to the initial time gives the date  January 2097, and finally adding the remaining half year (six months) we conclude that the date is June 2097.

6 0
3 years ago
ANSWER THIS CORRECTLY FOR BRAINLIEST!!!!<br><br> This is 8th grade<br> algebra btw
gulaghasi [49]

Answer:

V = 2143.57

Step-by-step explanation:

To find the volume of a sphere you need to use this formula:

V = \frac{4}{3}\pi r^{3}

r = radius

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You need the radius from the diameter. Divide 16/2 which is

8.

V = \frac{4}{3}(3.14) 8^{3}

V = 2143.57

7 0
2 years ago
Read 2 more answers
Y = 2(x – 4)– 6<br> Vertex:<br> y-intercept: _
serious [3.7K]

Answer:

vertex: (4,-6), y= -14

Step-by-step explanation:

vertex can be derived from this formula

(4, -6)

to find y intercept you need to set x=0

y=2(0-4)-6

=-8-6

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4 0
3 years ago
5/6+5/6 show your work
Umnica [9.8K]
10/6 = 1 2/3 This is because 5 + 5 =10/6 Divide 19 by six. This gives you 1 2/3
6 0
3 years ago
PLS HELP WITH THIS QUESTION
alexandr1967 [171]
ANSWER: y=6
straight lines are 180° and all the angles in a triangle add up to 180°
4 0
3 years ago
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