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mart [117]
2 years ago
7

Relationships in Figures

Mathematics
1 answer:
Ghella [55]2 years ago
6 0

Answer:

B. 13

Step-by-step explanation:

I calculated it logically

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i think it's 3?

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What is : 50% of $500,000
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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
Given that G=ab find the percentage increase in G when both a and b<br> increase by 10%
monitta

The percentage change in G is 21 %

<h3>What is Percentage change ?</h3>

Percentage change is defined as the increase or decrease in the value as compared to the original value multiplied by 100.

It is given that

G = ab

when a is increased by 10% the new a will be = 1.1 a

When b is increased by 10% the new b will be 1.1 b

So,

G' = 1.1a *1.1 b

G' = 1.21 ab

G' = 1.21

(G' - G)*100/G = (1.21-1)*100/1

The percentage change is 21 %

To know more about  percentage change

brainly.com/question/14979505

#SPJ1

3 0
2 years ago
$22.00+$14.00= <br> answer this
Zigmanuir [339]

Answer:

$36

Step-by-step explanation:

22+14=36

6 0
3 years ago
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