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sammy [17]
3 years ago
6

Model 1.42 = 100% _% = _%

Mathematics
1 answer:
Aleks04 [339]3 years ago
3 0
For the answer to the equation above, are you asking if what is the 1.42% of 100? 
Because the 1.42 of 100% is 1.42

100/x=100/1.42
<span>(100/x)*x=(100/1.42)*x      </span> multiply both sides of the equation by x
<span>100=70.422535211268*x     </span>divide both sides of the equation by (
70.422535211268) to get x
<span>100/70.422535211268=x </span>
<span>1.42=x </span>
<span>x=1.42</span>
I hope my answer helped you. Feel free to ask more questions. If you want some more precise answers to your question, ask the right question to get the right answers. Have a nice day!

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Find the area of the triangle, then multiply by the depth of the prism:

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7 0
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20 POINTS!! What would be the first step to solve this equation?
rjkz [21]

Answer:

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Step-by-step explanation:

because you always have to divide by the number on top

7 0
2 years ago
Could someone help me rnnn?
GuDViN [60]

Answer:

vertex = (0, -4)

equation of the parabola:  y=3x^2-4

Step-by-step explanation:

Given:

  • y-intercept of parabola: -4
  • parabola passes through points: (-2, 8) and (1, -1)

Vertex form of a parabola:  y=a(x-h)^2+k

(where (h, k) is the vertex and a is some constant)

Substitute point (0, -4) into the equation:

\begin{aligned}\textsf{At}\:(0,-4) \implies a(0-h)^2+k &=-4\\ah^2+k &=-4\end{aligned}

Substitute point (-2, 8) and ah^2+k=-4 into the equation:

\begin{aligned}\textsf{At}\:(-2,8) \implies a(-2-h)^2+k &=8\\a(4+4h+h^2)+k &=8\\4a+4ah+ah^2+k &=8\\\implies 4a+4ah-4&=8\\4a(1+h)&=12\\a(1+h)&=3\end{aligned}

Substitute point (1, -1) and ah^2+k=-4 into the equation:

\begin{aligned}\textsf{At}\:(1.-1) \implies a(1-h)^2+k &=-1\\a(1-2h+h^2)+k &=-1\\a-2ah+ah^2+k &=-1\\\implies a-2ah-4&=-1\\a(1-2h)&=3\end{aligned}

Equate to find h:

\begin{aligned}\implies a(1+h) &=a(1-2h)\\1+h &=1-2h\\3h &=0\\h &=0\end{aligned}

Substitute found value of h into one of the equations to find a:

\begin{aligned}\implies a(1+0) &=3\\a &=3\end{aligned}

Substitute found values of h and a to find k:

\begin{aligned}\implies ah^2+k&=-4\\(3)(0)^2+k &=-4\\k &=-4\end{aligned}

Therefore, the equation of the parabola in vertex form is:

\implies y=3(x-0)^2-4=3x^2-4

So the vertex of the parabola is (0, -4)

5 0
2 years ago
Read 2 more answers
PLEASE HELP!!!!!!
vlada-n [284]

Answer:

I believe D. B12

5 0
3 years ago
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