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ipn [44]
3 years ago
5

Which expression is equal to –2i(4– i)?

Mathematics
2 answers:
Agata [3.3K]3 years ago
6 0
Hope it will help you....

Mnenie [13.5K]3 years ago
3 0
-8i + 2i^2
-8i - 2  OR -2 - 8i

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Which graph represents the polynomial function?<br><br> f(x)=−x3+x2+9x−9
atroni [7]

The curve pass through the y-axis at the coordinate point (0, 10) showing that the y-intercept of the function is (0, 10)

<h3 /><h3>Graph of a polynomial</h3>

The graph of a polynomial function is a smooth continuous curve. The point where the curve intersects the x-axis is the zero of the polynomial.

A polynomial is also known to have a degree of 3 and above. Hence the given polynomial has a leading degree of 3 and expressed as:

f(x)=−x^3+x^2+9x−9

The graph of the function is as plotted below. From the function, you can see that the curve pass through the y-axis at the coordinate point (0, 10) showing that the y-intercept of the function is (0, 10)

Learn more on polynomial graph here: brainly.com/question/10918240

#SPJ1

7 0
2 years ago
HELP NEEDED ASAP!
Natali5045456 [20]
His name is in the name of the name in the name of the name in the name of the name
8 0
3 years ago
Write an equation for an ellipse centered at the origin, which has foci at (0,\pm\sqrt{63})(0,± 63 ​ )left parenthesis, 0, comma
steposvetlana [31]

Answer:

\frac{x^{2} }{4312 } + \frac{y^{2} }{8281 }

Step-by-step explanation:

Since the foci are at(0,±c) = (0,±63) and vertices (0,±a) = (0,±91), the major axis is the y- axis. So, we have the equation in the form (with center at the origin) \frac{x^{2} }{b^{2} } + \frac{y^{2} }{a^{2} }.

We find the co-vertices b from b = ±√(a² - c²) where a = 91 and c = 63

b = ±√(a² - c²)

= ±√(91² - 63²)

= ±√(8281 - 3969)

= ±√4312

= ±14√22

So the equation is

\frac{x^{2} }{(14\sqrt{22}) ^{2} } + \frac{y^{2} }{91^{2} } = \frac{x^{2} }{4312 } + \frac{y^{2} }{8281 }

8 0
4 years ago
From 1000, create a pattern by subtracting 8 from each number and stop at 5 numbers
shusha [124]
Well subtract 8 from 1000 and then do that five times. so 992,984,976,968, and 960<span />
7 0
3 years ago
What is the median of the data displayed in this box-and-whisker plot? A.41 B.49 C.55 D.58
Likurg_2 [28]
The answer is A. 41 because it is in the middle of the box.
4 0
3 years ago
Read 2 more answers
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