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3 years ago

6

A scale of 0.5 inches to 2 feet was used for a model of the goal posts on a football field. If the model was 1 1/2 in high and 5

1/8 inches long, what was the actual height and length?

1 answer:

Paraphin [41]3 years ago

6 0

The actual height is: 1 1/2 * 2 = 3 feet
The actual length is: 5 1/8 * 2 = 10.25 feet

hope this helps you.

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Write 73% as a simplified fraction

Murrr4er [49]

Answer:

73/100

Step-by-step explanation:

73% = 73/100

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What two numbers multiply to 10 and add to -29 ?

Degger [83]

Xy=10
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subtract x from both sides for second equation

y=-x-29
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x(-x-29)=10
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add x^2+29x to both sides
x^2+29x+10=0
quadratic formula
if you have
ax^2+bx+c=0,
x= $\frac{-b+/- \sqrt{b^{2}-4ac} }{2a}$

so
x^2+29x+10=0
a=1
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x= $\frac{-29+/- \sqrt{(-29)^{2}-4(1)(10)} }{2(1)}$
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x= $\frac{-29+/- \sqrt{801} }{2}$
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2 years ago

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Factor and find the zeros. z^2-z+56

Inessa [10]

Answer:

Sry its long but if your to lazy to look thru it here is the answer= z = {-7, 8}

Step-by-step explanation:

Simplifying

z2 + -1z + -56 = 0

Reorder the terms:

-56 + -1z + z2 = 0

Solving:

-56 + -1z + z2 = 0

Solving for variable 'z'.

Factor a trinomial.

(-7 + -1z)(8 + -1z) = 0

Subproblem 1

Set the factor '(-7 + -1z)' equal to zero and attempt to solve:

Simplifying:

-7 + -1z = 0

Solving:

-7 + -1z = 0

Move all terms containing z to the left, all other terms to the right.

Add '7' to each side of the equation.

-7 + 7 + -1z = 0 + 7

Combine like terms: -7 + 7 = 0

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-1z = 0 + 7

Combine like terms: 0 + 7 = 7

-1z = 7

Divide each side by '-1'.

z = -7

Simplifying:

z = -7

Subproblem 2

Set the factor '(8 + -1z)' equal to zero and attempt to solve:

Simplifying:

8 + -1z = 0

Solving:

8 + -1z = 0

Move all terms containing z to the left, all other terms to the right.

Add '-8' to each side of the equation.

8 + -8 + -1z = 0 + -8

Combine like terms: 8 + -8 = 0

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-1z = 0 + -8

Combine like terms: 0 + -8 = -8

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Divide each side by '-1'.

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Simplifying:

z = 8

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Plug x (x value) into equation (outputs y value)

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2 years ago

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Answer:

The time that pass until only two cookies left is 1.89 hour

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