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jekas [21]
3 years ago
13

MathWiz wya? I need some help with this...show your work <3

Mathematics
1 answer:
Lady_Fox [76]3 years ago
4 0

Answer:

(4i+1)^2

4i^2 + 2(4i) + 1

16(-1) + 8i + 1

-15+8i

8i-15

(x+1) + (x-2)(x+3)

(x+1) + (x^2-2x+3x-6)

(x+1)+x^2+x-6

x+1+x^2+x-6

x^2+2x-5

Let me know if this helps!

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Find equation of a line through 5 -3 that is parallel to y=1/2x+3
xxTIMURxx [149]

Answer:

The equation of a line through (5 -3) that is parallel to y = 1/2 x+3 is

y = - 2 x  + 7

Step-by-step explanation:

Let us assume the slope of the line whose equation we need to find is m 1.

The line parallel to the needed line  is:   y=1/2x+3

Comparing it with the general form: y = m x + C

we get m 2 = 1/2

Now, as Line 1 is Perpendicular to Line 2.

⇒ m 1 x m 2  = -1

⇒ m 1 x ( 1/2)  = -1

⇒ m 1  = - 2

Also, the point son the line 1 is given as: (x,y)  = (5,-3)

Put the value of point and Slope in y = m x + C to find the value of Y- INTERCEPT.

we get: -3 = (-2) (5) +  C

or, C = -3 + 10 = 7

⇒ C = 7

The general line equation is given as:  y = m x + C

Substituting  the values of C and m, we get:

y = - 2 x  + 7

Hence, the equation of a line through 5 -3 that is parallel to y = 1/2 x+3 is

y = - 2 x  + 7

8 0
3 years ago
What is the solution set of {x | x &lt; -3} ∩ {x | x &gt; 5}
lozanna [386]
Any x in this set will be real numbers that are both less than -3 and greater than 5. But that's not possible, so this set is empty.
7 0
3 years ago
1: A woman buys a car making a $3,000 down payment and then agrees to make 48 monthly payments of $360. What is the total cost o
katrin [286]

Answer:

1. $20280

2. 117 h

Step-by-step explanation:

1.

to know the value of the car we have to add all the monthly payments with the $ 3000 that she paid at the beginning

x =  car value

x = $3000 + 48 * $360

x = $3000 + $17280

x = $20280

The total cost of the car is $20280

2.

To know how many hours I work in total we have to add the hours I work in each day 5 times with the 57 hours I work the following week

x =  hours that work in all

x = 5 * 12 + 57

x = 60 + 57

x = 117

work for 117 hours in all

7 0
3 years ago
Read 2 more answers
PlS help lots of points
Len [333]
I feel like there is something missing from this question, for example how large is the tree house? If these are just plain measurements, then I would opt for B.

3 0
3 years ago
Hannah took p minuets to jog around a park. Sofia took 12 minuets longer to jog around the park. If sofia took t minutes to jog
Sladkaya [172]

Answer:

t = p + 12

Independent variable: p

Dependent variable: t

Step-by-step explanation:

7 0
3 years ago
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