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sergeinik [125]
4 years ago
11

What are the x-intercepts of the quadratic function?

Mathematics
1 answer:
ivolga24 [154]4 years ago
3 0
X=3 and x=-9 solve by factoring
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Plz do have mercy and help me
Nikitich [7]
I have mercy:

8x and 9x+5 (the angles) form a right angle so 8x+9x+5=90 which means x is 5 and plugging it back into the angles 8x we get 40 sinceBHR and angle 8x are vertical angles they are equal to each other and so it's equal to 40
4 0
3 years ago
Select the correct answer.<br> Which expression is equivalent to this polynomial?<br> x2 + 8
Svetlanka [38]

Answer:

D ( x -2i sqrt(2)) ( x+ 2i sqrt(2))

Step-by-step explanation:

x^2 + 8

We want to factor so rewrite as squares

x^2 + (2sqrt(2))^2

Rewrite with a subtraction sign i^2 = -1

x^2 - (2*i*sqrt(2))^2

This is the difference of squares

a^2 - b^2 = ( a-b) (a+b)

( x -2i sqrt(2)) ( x+ 2i sqrt(2))

3 0
3 years ago
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Ella is collecting data about the numbers of hours teenagers spend on computers each day. Which values represent the best scale
Dominik [7]

Step-by-step explanation:

i fnu havw 3 its 7 but 7m gos into m so m divides into 1 x 6 x 4 x 9 l qx

8 0
3 years ago
Two rectangles are similar. If the height of the first rectangle is 3 inches, and the height of the second rectangle is 9 inches
Zanzabum
9/3=3
The larger triangle will be 3 times the size
8 0
3 years ago
18. If the ratio of males to females in each
Drupady [299]

Answer:

Yes

Step-by-step explanation:

Example: Let class one have 5 male students and 4 female students and let class two have 10 male students and 8 female students, then the single class will have 15 male student and 12 female students which are in a ratio of 5:4

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3 years ago
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