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2 years ago

what are some advantages of writing the polynomial expression -7x^2+32x+240 in factored form when interpreting this situation

Mathematics

1 answer:

hammer [34]2 years ago

6 0

Step-by-step explanation:

The advantages of writing the polynomial expression

-7 $x^{2}$ + 32x + 240 in factored form when interpreting this

situation

Factorizing the quadratic equation gives

-7 $x^{2}$ + 32x + 240

-7 $x^{2}$ +60x - 28x + 240

x×(-7x + 60) -4 ×(-7x + 60)

(x-4)×(-7x + 60)

The roots of the equation 4,-60/7

Advantages of writing the polynomial expression in factored

we directly know the roots

we can easily draw the graph of the quadratic

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Answer:

the 13 and one-third cups of flour he has. If each loaf requires 3 and four-fifths cups of flour, how many loaves can Josh bake?

3 loaves of bread

4 loaves of bread

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51 loaves of bread

Step-by-step explanation:

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2 years ago

At time t=3, there are 2.5 cubic feet of water in the tub. Write an equation for the locally linear approximation of W at t=3, a

velikii [3]

Answer:

W=0.8333*t

2.917 ft³

Step-by-step explanation:

At time t=3, there is 2.5 ft³ of water in the tub

Finding the relation will be;

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At t=3.5 will be;

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Apply cross-production

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4 0

2 years ago

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What is the solution to the system of equations? y = A system of equations. Y equals StartFraction 2 over 3 EndFraction x plus 3

Sauron [17]

Answer:

The solution to the given system of equations is (-2, $\frac{5}{3}$ )

Therefore the values of x and y are x=-2 and $y=\frac{5}{3}$

Step-by-step explanation:

Given equations can be written as

$y=\frac{2}{3}x+3\hfill (1)$

$x=-2x+3x=-2\hfill (2)$

Solving equation(2) we get

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Substitute x=-2 in equation (1) we get

$y=\frac{2}{3}(-2)+3$

$=-\frac{4}{3}+3$

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1 year ago

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The loudness, L, measured in decibels (Db), of a sound intensity, I, measured in watts per square meter, is defined as L = 10 lo

butalik [34]

Answer:

The approximate loudness of a rock concert with a sound intensity of $10^{-1}$ is 110 Db.

Step-by-step explanation:

The loudness, L, measured in decibels (Db), of a sound intensity, I, measured in watts per square meter, is : $L=10 log (\frac{I}{I_0})$

$I_0=10^{-12}$

We are supposed to find What is the approximate loudness of a rock concert with a sound intensity of $10^{-1}$

So, $I = 10^{-1}$

Substitute the values in the formula :

$L=10 log (\frac{10^{-1}}{10^{-12}})$

$L=10 log (10^{11})$

L=110 Db

So, the approximate loudness of a rock concert with a sound intensity of $10^{-1}$ is 110 Db.

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1 year ago

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2 years ago

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what are some advantages of writing the polynomial expression -7x^2+32x+240 in factored form when interpreting this situation ​

what are some advantages of writing the polynomial expression -7x^2+32x+240 in factored form when interpreting this situation