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makkiz [27]
3 years ago
6

What is 2.5 % of 16 ?

Mathematics
2 answers:
Aloiza [94]3 years ago
8 0

Multiply .025 by 16. You always move the decimal to the left two places to turn a percentile to a decimal.

kupik [55]3 years ago
5 0
Multiply .025 by 16. You always move the decimal to the left two places to turn a percentile to a decimal.
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The height of water shooting from a fountain is modeled by the function f(x) = −0.2x2 − 2.8x − 5.4 where x is the distance from
balandron [24]
Start by setting the function equal to 0 and then moving the -5.4 over to the other side of the equals sign.  -.2 x^{2} -2.8x=5.4.  The first rule for completing the square is that the leading coefficient be a +1.  Ours is a -.2.  So we need to factor it out. -.2( x^{2} +14x)=5.4.  Now we will take half the linear term, square it, and add it to both sides.  Our linear term is 14.  Half of 14 is 7, and 7 squared is 49.  So we add 49 in to the left side just fine, but we cannot forget about that -.2 hanging around out front as a multiplier.  What we have actually "added" in is -.2*49 which is -9.8.  Now here's what we have after all that: -.2( x^{2} +14x+49)=5.4-9.8.  In that process, we have created a perfect square binomial on the left.  Along with expressing that binomial we will do the math on the right: -.2(x+7) ^{2} =-4.4.  Now we will move the -4.4 back over by addition, and it will then be apparent as to what our vertex is.  The y coordinate of the vertex will give us the max height of the water.  -.2(x+7) +4.4=y.  As you can see, our work matches choice C from above.
4 0
3 years ago
Polynomial is a combination of O constants O variables O exponents O all of the choices <br>​
kvv77 [185]

Answer:

It would be all of the above.

Step-by-step explanation:

An example of a polynomial is:

2x^3 - 4x^2 +1x -8

Note how there are exponents, such as ^3 for example. There is also a variable, in this case x. Lastly, there are constants, which are numbers by themselves.

5 0
3 years ago
THIS IS DUE TODAY PLS PLS PLS HELP ME ON IT :(
Rufina [12.5K]

Answer:

monke

Step-by-step explanation:

monkey

7 0
3 years ago
Read 2 more answers
Help no links please u^u
Veseljchak [2.6K]

Answer:

∠A= 80°

Step-by-step explanation:

if they are supplementary then put them equal to 180

7x + 3 +7x + 23 = 180

14x + 26 = 180

14x = 154

x= 11

now plug in

7(11)+3

77+3= 80

3 0
3 years ago
Is -7 + 9= 9 + 7 true, false or open
True [87]
That's false -7+9=2 and 7+9=18
5 0
3 years ago
Read 2 more answers
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