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Darya [45]
1 year ago
14

An arch is in the shape of a parabola. It has a span of 108 feet and a maximum height of 6 feet.

SAT
1 answer:
ohaa [14]1 year ago
6 0

The Equation for parabola is y=-1/486 x² +6 and the height of the arc 5 feet is: 5 461/486 feet.

<h3>Equation for parabola</h3>

Using this equation to find the equation  for  parabola

y=a(x-54) (x+54)

y(0)=a(-54) (54)=6

-2916a=6

Divide both side by y6a

a=-2916/6

a=-486

Equation for parabola

y=-1/486 x² +6

Height of the arc 5 feet

When x=5

y=-25/486+6

y=2891/486

=5 461/486 feet

Therefore the Equation for parabola is y=-1/486 x² +6 and the height of the arc 5 feet is: 5 461/486 feet.

Learn more about Equation for parabola here:brainly.com/question/1538225

#SPJ1

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The oxidation number if eah of the elements is as follows;

  • Oxidation number of Mn is + 7 on the right hand side and +4 on the right hand side
  • Oxidation number if hydrogen is +1 on both sides
  • The oxidation number of oxygen is -2 on both sides
  • The oxidation number of sulfur is -2 on the lefthand side and zero on the right hand side.

<h3>What is a redox reaction?</h3>

A redox reaction is one in which there is a change in the oxidation number of the reactants from left to right.

Let us now consider the oxidation  number of each element from left to right;

  • Oxidation number of Mn is + 7 on the right hand side and +4 on the right hand side
  • Oxidation number if hydrogen is +1 on both sides
  • The oxidation number of oxygen is -2 on both sides
  • The oxidation number of sulfur is -2 on the lefthand side and zero on the right hand side.

Learn more about oxidation number: brainly.com/question/15167411?

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1 year ago
Assuming Leakey's hypothesis of a sixth mass extinction to be true, how will we expect the model to change?
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C). <span>a sharp spike in the graph immediately following the "0" location of the X axis</span></span>
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The trait of “freckles” is dominant and represented by A. No freckles is recessive and represented by a. A researcher crossed tw
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Answer:

It's wrong.

Explanation:

In the Punnett square, we will use F to represent the dominant freckles gene and f to represent the recessive lack-of-freckles gene. The first individual would have FF, because homozygous means that both alleles are the same. The second individual would have Ff, because heterozygous means that it has 2 different alleles. If the first individual passes down one of its "F" alleles and the second individual passes down its "F" allele, the offspring would have 2 dominant alleles, and the researcher's conclusion is disproven.

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Which citation is formatted correctly using mla guidelines? barrett, leigh. Snow removal woes. "hartford times-dispatch" 12 janu
motikmotik

The citation that is formatted correctly using MLA's guidelines is;

Barrett, Leigh. "Snow Removal Woes." Hartford Times-Dispatch 12 January 2012: B12. Print.

MLA simply means Modern Language Association. This is a format that states that when citing a newspaper article, we must write in the following order;

  1. Write the author's last name.
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The only option that follows this MLA format guidelines correctly is;

"Barrett, Leigh. 'Snow Removal Woes.' Hartford Times-Dispatch 12 January 2012: B12. Print.".

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