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kotykmax [81]
3 years ago
7

May Someone Plz Answer This problem -.8x+40-8x-35

Mathematics
2 answers:
3241004551 [841]3 years ago
6 0
-0.8x + 40 - 8x - 35
-0.8x - 8x + 40 - 35
= 7.2x + 5
STALIN [3.7K]3 years ago
5 0
-0.8x+40-8x-35

(Collect like terms)

-8.8x+40-35

(Subtract the numbers)

=-8.8x+5
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Find the radius of a hemisphere with a volume of 106.1 cubic inches. Round to the nearest tenth if necessary.
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Answer:

Step-by-step explanation:

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3 years ago
Factor the polynomial, x2 + 5x + 6
patriot [66]

Answer:

Choice b.

x^{2} + 5\, x + 6 = (x + 3)\, (x + 2).

Step-by-step explanation:

The highest power of the variable x in this polynomial is 2. In other words, this polynomial is quadratic.

It is thus possible to apply the quadratic formula to find the "roots" of this polynomial. (A root of a polynomial is a value of the variable that would set the polynomial to 0.)

After finding these roots, it would be possible to factorize this polynomial using the Factor Theorem.

Apply the quadratic formula to find the two roots that would set this quadratic polynomial to 0. The discriminant of this polynomial is (5^{2} - 4 \times 1 \times 6) = 1.

\begin{aligned}x_{1} &= \frac{-5 + \sqrt{1}}{2\times 1} \\ &= \frac{-5 + 1}{2} \\ &= -2\end{aligned}.

Similarly:

\begin{aligned}x_{2} &= \frac{-5 - \sqrt{1}}{2\times 1} \\ &= \frac{-5 - 1}{2} \\ &= -3\end{aligned}.

By the Factor Theorem, if x = x_{0} is a root of a polynomial, then (x - x_0) would be a factor of that polynomial. Note the minus sign between x and x_{0}.

  • The root x = -2 corresponds to the factor (x - (-2)), which simplifies to (x + 2).
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Verify that (x + 2)\, (x + 3) indeed expands to the original polynomial:

\begin{aligned}& (x + 2)\, (x + 3) \\ =\; & x^{2} + 2\, x + 3\, x + 6 \\ =\; & x^{2} + 5\, x + 6\end{aligned}.

4 0
3 years ago
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Shalnov [3]

Answer:

Step-by-step explanation:

The general equation of the circle is:

(x-h)²+(y-k)²=r²

(h, k)=(-3,-5)  are the coordinates of the center of the circle.

r=6  is the radius

The equation of the circle is:

(x+3)²+(y+5)² = 36

6 0
3 years ago
Please help. !!!!!!!!
Kryger [21]
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K: (-1, -4)
I: (-2, -5)
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7/4pi multiplied by 180/pi give you about 97 degrees when you calculate it.
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