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horsena [70]
2 years ago
13

Perform the operation. (-2x^2 – 8x + 3) + (-9x^2 + x + 3)

Mathematics
2 answers:
galina1969 [7]2 years ago
5 0

Answer:

-11x^{2} + 7x + 6

Step-by-step explanation:

ludmilkaskok [199]2 years ago
3 0
The answer is: - 11x^2 - 7x + 6
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The mpg (miles per gallon for a certain compact car is normally distributed with a mean of 31 and a standard deviation of 0.8. w
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For this Q:

mean=31
st.dev.=0.8
x=32

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3 years ago
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3 years ago
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Find a counterexample to show that the conjecture is false. Any number that is divisible by 2 is also divisible by 6.
Anon25 [30]
The answer is A)22 because 22÷6 is a fraction
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2 years ago
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Help help help help pls
Monica [59]

Answer:

\theta = 82.2^\circ

Step-by-step explanation:

Let \  \angle BAC = \theta

Opposite = BC ,

Adjacent = AB = x = 3 ,

Hypotenuse = AC = y = 22

<em><u>Using trigonometric ratios.</u></em>

sin \theta = \frac{opposite}{hypotenuse }\\\\cos \theta = \frac{adjacent}{hypotenuse}\\\\tan \theta = \frac{opposite}{adjacent}

Since we have adjacent and hypotenuse we use cosine's  ratio

to find the angle.

           cos \theta = \frac{x}{y} = \frac{3}{22} \\\\\theta = cos^{-1} \frac{3}{22} = 82.16 = 82.2^\circ

6 0
3 years ago
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