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const2013 [10]
3 years ago
7

Which expressions are equivalent to the given expression?

Mathematics
1 answer:
Komok [63]3 years ago
5 0

-51 - 6i AND -3 + 2i - 2(24) - 8i are correct :)

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PLEASE HELP ME! THIS ASSIGNMENT WAS DUE YESTERDAY!!
djyliett [7]

Answer:

700$ at 2% 800$ at 4%

Step-by-step explanation:

x+y=1500 This is because the total is 1500 dollars into 2 different accounts, x and y.

0.02x+0.04y=44 This is because it says 2 percent interest in one account and 4 percent in the other, and the totals add up to 44 dollars.

Now use elimination method.

x+y=1500(-0.02)=-0.02x+-0.02y=-30

0.02x+0.04y=44

Now you end up with 0.02y=14, solve for y and you get 700. That's the value of y which now you can then subtract from 1500 and get 800 which is the value of x.

4 0
3 years ago
If a function rule is 2x – 3, what is the output for the input 3?
anzhelika [568]

Answer:

The function rule can be written as: f(x) = 2x-3

So, when  we input 3, we replace all of the x's for  3's and have: f(3) = 2(3)-3.

This simplifies to be: f(3) = 3, meaning that 3 is the output.

Hope this helps!

6 0
3 years ago
Read 2 more answers
17. You invest $4000 in an account to save for college.
alexdok [17]

Answer:

a. $4,415.25

b. $4,376.70

c. 2.27986 years

Step-by-step explanation:

a.

A = 4,000 (1 + 0.05/2)^(2 x 2)

   = $4,415.25

b.

A = 4,000 x e^(0.045 x 2)

   = $4,376.70

c. $100 more than option 2 = 4,376.70 + 100

                                              = $4,476.70

t (in years) = ln(4,476.70/4,000) /  ln(1 + 0.05/2)

                 = 2.27986 years

7 0
3 years ago
If I have a rectangular prism with a height of 4, width of 12, and length of 2 what is the lateral area?
Sergeu [11.5K]

Answer:

112 units²

Notes to know:

The lateral area and surface area of something are similar, but not the same

-> Surface area is the area of all the sides added up

-> Lateral area is the surface area of all the sides <em>not</em> including the top and bottom

Step-by-step explanation:

     Since this is a rectangular prism, it will have 6 sides in total. That means the lateral area will be a total of four sides.

     The sides we need to find for lateral area:

1: 2 * 4 = 8

2: 2 * 4 = 8

3: 12 * 4 = 48

4: 12 * 4 = 48

     Add them together:

8 + 8 + 48 + 48 = 112 units²

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly.

- Heather

8 0
2 years ago
Carmen earns $7.50 an hour, plus tips, as a waitress. Suppose she works 24 hours in one week. How much money in tips must she re
brilliants [131]
X>70 is the answer for this 

7 0
3 years ago
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