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Setler79 [48]
3 years ago
12

Select the approximate values of x that are solutions to f(x) = 0, where

Mathematics
1 answer:
irga5000 [103]3 years ago
3 0
A=-2;b=9;c=9;
delta=b^2-4*a*c
root1=(-b+(delta^(0.5)))/(2*a)  
<span>root2=(-b-(delta^(0.5)))/(2*a)

delta =153
root1 = -0.8423
root2 =<span> 5.3423

Correct Answer is D</span></span>
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Find f such that f'(x) = 5x² + 9x - 7 and f(0) = 8.
faltersainse [42]

Answer:

\frac{5}{3}x^3+\frac{9}{2}x^2-7x+8\\

Step-by-step explanation:

Integrate your function with respect to x to get the non-differentiated form.

\int(5x^2+9x-7)dx=\frac{5}{3}x^3+\frac{9}{2}x^2-7x+c\\

Plug in your known value of x to get your value for your constant

f(0) = 8\\ \frac{5}{3}(0^3)+\frac{9}{2}(0^2)-7(0)+c = 8 \\c=8

This gives you your function to be

\frac{5}{3}x^3+\frac{9}{2}x^2-7x+8\\

6 0
3 years ago
I really need help with this​
Andreyy89

Answer:

x = 67

Step-by-step explanation:

If the measure of the entire chord is 166°, then if you add the two angles that form it together, it will equal 166.

So,

x + 15 + x + 17 = 166

Simplify.

2x + 32 = 166

Subtract 32 from both sides.

2x = 134

Divide both sides by 2.

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I hope this helps! Feel free to ask any questions!

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3 years ago
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svetoff [14.1K]
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Answer:

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Step-by-step explanation:

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