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3 years ago

15

How to do this problem it dosent make sense

1 answer:

levacccp [35]3 years ago

6 0

Well with those sorts of things, there are online tools you can use. I used one from the explore learning website
Pick the rotate around origin operation, simplify the -80 to a -16 and the 45 to a 9, then take those values and place your point on the graph. Adjust the rotation tool to 90 degrees, and your new point should be on -9, -16. Multiply both numbers by 5 and your answer would be -45, -80.

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Step-by-step explanation:

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3 years ago

I need some help with the question

vagabundo [1.1K]

To solve this you first need to turn your mixed numbers into improper fractions. to do this for $9 \frac{4}{5}$ you multiply the denominator (5) by the whole number (9) to get 45 and then add that to the numerator (4) to get your new fraction $\frac{49}{5}$ .

You repeat this process with $3\frac{1}{2}$ to get $\frac{7}{2}$ .

Now that you have two fractions you can multiply by the opposite reciprocal. To do this you flip the second fraction and change the division sign to a multiplication sign like so $\frac{49}{5} * \frac{2}{7}$

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4 years ago

You are building a tree house and bought plans online. However the plans are in metric unit and your tape measure only has feet.

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3 years ago

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8_murik_8 [283]

Answer:

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Step-by-step explanation:

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3 years ago

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ss7ja [257]

Answer:

The maximum area is 1,600 square meters

Step-by-step explanation:

<u><em>The complete question is</em></u>

What is the maximum area possible?

The given function area is modeled by A(w)=-w(w-80)

we know that

The given function is a vertical parabola open downward

The vertex is a maximum

The x-coordinate of the vertex represent the width for the maximum area

The y-coordinate of the vertex represent the maximum area

Convert the quadratic function in vertex form

$A(w)=-w(w-80)\\\\A(w)=-w^{2}+80w$

Factor -1

$A(w)=-(w^{2}-80w)$

Complete the square

$A(w)=-(w^{2}-80w+1,600)+1,600$

Rewrite as perfect squares

$A(w)=-(w-40)^{2}+1,600$ ----> function in vertex form

The vertex is the point (40,1,600)

therefore

The maximum area is 1,600 square meters

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4 years ago

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