3 years ago

Factor w^2-7w-8 show work

Mathematics

1 answer:

svlad2 [7]3 years ago

7 0

Find what 2 numbers add to -7 and multiply to -8
+1 and -8
(w+1)(w-8)

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If the diameter of a circle is increased by 6 cm, what is the increase in the circumference of the circle?

timofeeve [1]

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Step-by-step explanation:

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3 years ago

Find a quadratic equation with roots -1, 4i and -1 - 4i

vazorg [7]

$\bf \textit{difference of squares}
\\\\
(a-b)(a+b) = a^2-b^2\qquad \qquad 
a^2-b^2 = (a-b)(a+b)
\\\\\\
\textit{also recall that }i^2=-1\\\\
-------------------------------\\\\
\begin{cases}
x=-1+4i\implies &x+1-4i=0\\
x=-1-4i\implies &x+1+4i=0
\end{cases}
\\\\\\
(x+1-4i)(x+1+4i)=\stackrel{y}{0}
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3 0

3 years ago

What will make this equation true? -3 y=18

Virty [35]

Answer:

nothing

Step-by-step explanation:

you cant make this equation true!!

8 0

3 years ago

This table on a package of dog food tells how much to feed a dog, depending on its weight. Weight of Dog (pounds)153045 Amount

Novay_Z [31]

9514 1404 393

Answer:

k = 2/15

Step-by-step explanation:

We can solve the given equation for k:

k = s/p . . . . . . divide the given equation by p on both sides

Using the first values from the table (15 pounds, 2 scoops), we have ...

k = 2/15

The value of k is 2/15.

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3 years ago

plz help quick. the sum of two numbers is 11. Three times the first number minus the second number is -3. what are the numbers?

Lerok [7]

Answer:

the first number is 2, the second number is 9 :)

Step-by-step explanation:

brainliest? :)

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3 years ago