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QveST [7]
3 years ago
9

Melissa read 4 books each week for 4 weeks. Amanda read 5 books a week for 4 weeks. How many more books did Amanda read?

Mathematics
2 answers:
yarga [219]3 years ago
3 0

Amanda read 4 more books then Melissa.

REY [17]3 years ago
3 0

You do 4 times 4 which is 16. Then you do 4 times 5 which is 20. Then 20 minus 16 is 4. So you answer is 4.

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Given z1 = 1+i and z2 = 2+3i.
Margaret [11]

Answer:

(a) w=2+5i-6=-4+5i

Multiplicative inverse of w will be \frac{1}{-4+5i}

(B) As w is same as the product of z_1\ and\ z_2

So there multiplicative inverse will also be same

Step-by-step explanation:

We have given two complex numbers

z_1=1+i and z_2=3+2i

(a) First we have to find w=z_1z_2

So w=(1+i)(2+3i)=2+3i+2i+6i^2=2+5i+6i^2

As we know that i^2=-1

So w=2+5i-6=-4+5i

Multiplicative inverse :

It is that number when multiply with the number which we have have to find the multiplicative inverse gives result as 1

So multiplicative inverse of w will be \frac{1}{-4+5i}

Because when we multiply -4+5i with \frac{1}{-4+5i} it gives result as 1

(b) As w is same as the product of z_1\ and\ z_2

So there multiplicative inverse will also be same

4 0
3 years ago
An electric company charges an initial monthly fee for service and a fixed rate per kilowatt-hours (kWh) used. This table shows
Vlada [557]

<em>Here we are required to determine the initial monthly fee charged by the electric company.</em>

The initial fee charged by the electric company is; C = $10

To solve this, we need to evaluate the slope and intercepts of the equation of the straight line graph of the relation.

y = mx + c.

  • where m = slope of the relation.

  • and c = <em>intercept = the initial fee charged by the electric company</em>.

  • y = <em>Monthly charge at each time</em>.

  • x = Usage

To find the slope;

  • m = (y2 - y1)/(X2 - x1)

  • m = (28 -22)/(150 - 100)

  • m = 6/50

  • m = 0.12.

By substituting m into the equation y = mx + c, alongside a pair of values of usage and monthly charge, we can obtain the intercept, c (i.e the initial fee charged).

Therefore, m = 0.12 , y = 82 and X = 600;

we then have;

  • 82 = 0.12(600) + c.

  • C = 82 -72

  • C = $10.

Therefore, the initial fee charged by the electric company is; C = $10.

Read more:

brainly.com/question/22163485

8 0
3 years ago
PLEASE HELP <br><br>I put a photo​
crimeas [40]
The slope is three over one and the y intercept is nine
5 0
2 years ago
I need help on the steps of solving this problem?.<br> divide 4950 and 75
ryzh [129]

Answer:

4950/75 = 66

Step-by-step explanation:

Use a calculator to help you out!

4 0
3 years ago
Read 2 more answers
What supplies electricity in a circuit
nekit [7.7K]

Answer:

B.the conductor

Step-by-step explanation:

4 0
3 years ago
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