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DiKsa [7]
3 years ago
8

Perform the division write the result in STANDARD form. Show your work. 2+i/7-i

Mathematics
1 answer:
jarptica [38.1K]3 years ago
4 0

9514 1404 393

Answer:

  0.26 +0.18i

Step-by-step explanation:

Multiply numerator and denominator by the conjugate of the denominator.

  \dfrac{2+i}{7-i}=\dfrac{(2+i)(7+i)}{(7-i)(7+i)}=\dfrac{13+9i}{50}=\boxed{0.26+0.18i}

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The price of a new car was $12 500 It is reduced to £11 625 Work out the percentage reduction
cricket20 [7]
Answer:

12,500-11,625=875

875/12,500=7/100

7/100*100=7

The percentage reduction is 7%

P.S * represents multiplication
4 0
2 years ago
Use an iterated integral to find the area of the region bounded by the graphs of the equations.
Goryan [66]

Answer:

use photomath and it will solve ur problem

5 0
2 years ago
Marcy wants to paint the sides of the wooden storage chest shown below gray except the white lid. What is the surface area?
arlik [135]

Answer:

Surface area = 2,160 in²

Step-by-step explanation:

Given:

Length of box = 15 in

Width of box = 30 in

Height of box = 24 in

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Surface area = 2h[l+b]

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7 0
2 years ago
if y= 3x + 7 and the slope was multiplied by -1/2 would it become steeper become less steep or slope downward
amid [387]
By saying the slope was multiplied by -1/2, I assume you actually mean multiply and not decreased. In the equation, the slope of the equation is 3. Therefore, if it were to be multiplied by -1/2, the new slope would be -3/2. Because the slope is now negative, the slow would be downward. I hope this helps :-)
5 0
2 years ago
there are 9 different routese between citise A and B, and 8 different routes between cities B and C. How many different routese
Nookie1986 [14]

Answer:

72 routes

Step-by-step explanation:

The total number of routes from city A to C by way of city B is determined as the product of picking one out 9 routes from A to B by picking one out of 8 routes from city B to C:

n= \frac{9!}{(9-1)!} *\frac{8!}{(8-1)!} =9*8\\n=72\ routes

There are 72 different possible routes.

6 0
3 years ago
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