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ira [324]
3 years ago
13

I really dont get it halp ;-;

Mathematics
2 answers:
erik [133]3 years ago
6 0

Answer:

II

Step-by-step explanation:

This would be easier to explain to you on a graph, but I shall do the best I can in text format.

You know what a complex plane looks like, right? Just like a number line but with a vertical number line added on at the point (0). This makes four quadrants, you know the drill.

So each quadrant holds all values from on of the four positive/negative combinations, (1, 1i), (1, -1i), (-1, -1i), and (-1, 1i), in that order.

So this means that all the pairs with both positive values are in quadrant I, all the pairs with a positive rational number but a negative irrational number are in II, etc.

If you have a graph, you can simply count along the number line to find the answer, so in this case, starting as always at (0, 0), move 6 units to the right and then eight units down, where you end up in the lower righthand quadrant, which is II.

Oof I know that was worded badly but I hope it's not totally useless to you <3

You're doing great with the test, Gem, I'm sure you'll do just fine <:

Advocard [28]3 years ago
4 0

Answer:

IV

HOPE IT HELP IT WILL YOU❣️

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15 is what percent of 70​
podryga [215]

Answer:

21%

Step-by-step explanation:

15/70=21.14 round to 21

5 0
3 years ago
Read 2 more answers
Complete the table with the number of sit-ups you have to do sunday so that the mean number of sit-ups per day is 100
marissa [1.9K]

The mean is the average of the numbers.

It is easy to calculate: add up all the numbers, then divide by how many numbers there are.

Let the number of sit-ups you have to do Sunday be x. Then the sum of all sit-ups is

100+65+120+150+90+0+x=525+x.

The number of days is 7.

Thus, the mean is

\text{mean}=\dfrac{525+x}{7}.

You know that the mean number of sit-ups per day is 100, equate these two means and solve the equation:

\dfrac{525+x}{7}=100,\\ \\525+x=700,\\ \\x=700-525,\\ \\x=175.

Answer: 175 sit-ups

5 0
3 years ago
What is the value of x in the equation<br> 5(2x-7)=15x-10?
Ymorist [56]

Answer:

x = -5

Step-by-step explanation:

First distribute the 5 on the right side of the equation.

10x - 35 = 15x - 10

Then subtract 10x on each side

-35 = 5x - 10

Then add 10 on each side

-25 = 5x

Divide 5 on each side to get x

-25 / 5 = -5

I hope this helps! :)

6 0
3 years ago
QUICK!! Which formula below best represents the sector area for the diagram below?
IgorC [24]

Answer:

C

Step-by-step explanation:

6 0
3 years ago
Find the value of x, y, and z in the parallelogram below.
ANEK [815]

Answer:

X= 67

Y= 121

Z= 80

Step-by-step explanation:

To find Y:

(y-9) and 112 are congruent so

y-9=112

y=121

To find Z: (consecutive)

180=121+z+3

180=124+z (combine like terms)

subtract 124 to cancel and move to other side of equation

z= 80

To find X: (consecutive)

180=112+x+1

180=113+x (combine like terms)

subtract 113 to cancel out and move to their side of equation

x = 67

5 0
2 years ago
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