3 years ago

I need an answer! NO LINKS! PLS ill give brainlist!

Mathematics

1 answer:

earnstyle [38]3 years ago

3 0

I’m pretty sure it’s D. 84.4

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The equation y = 1.9 x can be used to determine the total weight in pounds, y, of the number of paperback books in the first pri

dedylja [7]

Answer:

280

Step-by-step explanation:

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3 years ago

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Evaluate the function f(x) = -7x + 2 at f(-18).

enyata [817]

Answer:

128

Step-by-step explanation:

-7x+2 = -18(-7)+2=126+2=128

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2 years ago

Consider 8x2 - 48x = -104.

ki77a [65]

Answer:

$3+ 2\mathbf{i}$

$3- 2\mathbf{i}$

Step-by-step explanation:

<u>Quadratic Equation Solving</u>

We have the equation:

$8x^2-48x=-104$

Divide by 8:

$x^2-6x=-13$

Now complete the squares so the left side is a perfect square of a binomial:

$x^2-6x+9=-13+9=-4$

Factoring the perfect square:

$(x-3)^2=-4$

Taking the square root:

$x-3=\sqrt{-4}$

The square root of a negative number is an imaginary number:

$x-3=\pm 2\mathbf{i}$

Solving for x:

$x=3\pm 2\mathbf{i}$

The solutions are:

$3+ 2\mathbf{i}$

$3- 2\mathbf{i}$

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3 years ago

The slope of the function ƒ (x) = 8 - 2x is _____. 2 - 2 8 -8

neonofarm [45]

Answer:

-2

Step-by-step explanation:

your equation is

f(x) = -2x+8

-2x

-2 is the slope

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3 years ago

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110,411 in expanded form

Neporo4naja [7]

One hundred and ten thousand , four hundred and eleven

11000 + 400 +11

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3 years ago

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