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AveGali [126]
4 years ago
13

3

Mathematics
1 answer:
Dimas [21]4 years ago
5 0

Answer:

5-i

Step-by-step explanation:

Product=multiplication

Let the complex number=x

(3+2i)*x=17+7i

x=17+7i / 3+2i

x=(17-7i)*(3-2i)/(3+2i)*(3+2i)

=51-34i+21i+14i^2 / 9+6i+6i+4i^2

=51+13i+14i^2 / 9+12i+4i^2

= (51+14 - 13i) / 13

= (65 -13i) / 13

= 65 / 13 - 13 i / 13

= 5 - i.

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The extended warranty on a garage door is $238. If the warranty costs 35% of the purchase price, how much does the garage door i
-BARSIC- [3]

Answer:

d. $680.

Step-by-step explanation:  

Let x be the cost of garage door.

We have been given that the extended warranty on a garage door is $238 and the warranty costs 35% of the purchase price. This means 35% of x equals 238.

We can represent this information in an equation as:

\frac{35}{100}x=238

0.35x=238

x=\frac{238}{0.35}

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Therefore, the cost of garage is $680 and option d is the correct choice.

4 0
3 years ago
What is -2/9 - (-1)?
Ivan

Answer:

7/9

Step-by-step explanation:

-2/9-(-1)=-2/9+1=7/9

Please mark as Brainliest! :)

Have a nice day.

5 0
3 years ago
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a its

Step-by-stepmem

5 0
4 years ago
Look down below for question:
ale4655 [162]
Area of ABC : AB*AC/2

the maximum of the parabola is reached at x=-4/(2*(-1))=2 hence A is at (2,0) and B is at (2,(-2)^2+4*2+C)=(2,12+C)

C is the second root (x-intersect), which we can find :

determinant1 : D=16-4*(-1)*C=4(4+C) thus the second root is at x=\frac{-4-\sqrt{4(4+C)}}{-2}=2+\sqrt{4+C}

Hence the area of the triangle is AB*AC/2=(4+C)*(2+\sqrt{4+C}-2)/2=(4+C)\sqrt{4+C}/2=32 hence (4+C)\sqrt{4+C}=64 .

We remark that 64=16*4=16*\sqrt{16}

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4 years ago
Pllzzz plzzz help im giving points and brainliest
ivolga24 [154]
1. Linear
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what the choices for the last one?
6 0
4 years ago
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