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zloy xaker [14]
3 years ago
12

What point is an x-intercept of the quadratic function f(x)=(x+6)(x-3)

Mathematics
1 answer:
Katyanochek1 [597]3 years ago
7 0
X-intercept is (-6, 0) , (3, 0)

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Express (sin 30 + i cos 30)^18​
Savatey [412]

Answer:

-i.

Step-by-step explanation:

Applying DeMoivre' s theorem:

(sin 30 + i cos 30)^18​

= sin(18*30) + i cos(18*30)

= sin 540 + i cos 540

= sin (3*180) + i cos (3*180)

= 0 + -1 * i

= -i.

8 0
3 years ago
Please help! I’ll give brainliest!
anzhelika [568]

Answer:

y=3x+3

Step-by-step explanation:

the line doesnt connect with a negative so the first and third arent it. And the line cross's with a 3 not an x so the seconds on isnt the answer. Leaving the last one the answer.

5 0
3 years ago
2.2x+3y=15.25 <br>4.6x+2.1y=18.325<br>USING ELIMINATION<br>SHOW WORK PLEASE
Artist 52 [7]

-4.6(2.2x+3y=15.25) = -10.12x - 13.8y = -70.15

2.2(4.6x+2.1y=18.325) = 10.12x - 4.62y = 40.315

simplify

-4.62y = -29.835

divide both sides by -4.62 to isolate y

y= 6.46

2.2x + 3 (6.46) = 15.25

2.2x + 19.38 = 15.25

subtract 19.38 to both sides

2.2x = -4.3

divide 2.2 to both sides

x= -1.95

I hope that this helped :)

4 0
3 years ago
If a^n=b than a is the n^th root of b. True or false
dem82 [27]

Step-by-step explanation:

yes that's true

if a^n=b

then

a^n/n=b^1/n

a=b^1/n

7 0
3 years ago
Brooks built two similar wooden chests in the shape of rectangular prisms. She used 16 pints of paint to cover the outside of th
Anika [276]
The choices for this question is found elsewhere and as follows:

<span>A. 16/9 B. 4/3 C. 32/9 D. 64/27
</span>
From the choices, i think the correct answer from the choices listed above is option B since from the situation you are reducing the ratio. Hope this answers the question.
7 0
3 years ago
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