1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Oduvanchick [21]
3 years ago
6

Check each true statement about the number 7- 3i

Mathematics
1 answer:
Mama L [17]3 years ago
7 0

Answer:

if your talkong algibra it would be 7-3! =1

You might be interested in
Given the system of linear equations.
Karo-lina-s [1.5K]

Part A:


x + y = 9

4x + y = 6


To solve this system using substitution, begin by isolating either x or y in the first equation. I'll isolate x.


x + y = 9

x = 9 - y


Substitute this expression (9 - y) into the second equation for x and solve.


4x + y = 6

4(9 - y) + y = 6

36 - 4y + y = 6

36 - 3y = 6

-3y = -30

y = 10


To find x, substitute 10 for y into either of the original equations.


x + y = 9

x + 10 = 9

x = -1


Finally, check all work by substituting the x- and y-values into each original equation.


x + y = 9   -->   -1 + 10 = 9   -->   9 = 9   -->   True

4x + y = 6   -->   4(-1) + 10 = 6   -->   -4 + 10 = 6   -->   6 = 6   -->   True


The answer for Part A is x = -1 and y = 10; (-1, 10).


Part B:


For graphing, it's easier to get the equations into slope-intercept form. Slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept. To get our equations into slope-intercept form, we must simply isolate y.


x + y = 9

y = 9 - x

y = -x + 9


4x + y = 6

y = 6 - 4x

y = -4x + 6


Now that we have our slope-intercept equations, we can easily graph them, since their slopes and y-intercepts are readily visible.



Let's start with the y-intercepts. They are (0, 9) and (0, 6). You can plot those points on the graph.


Now, the slopes. The slope of the first line is -1, this means it declines. To plot this, start where you plotted the y-intercept, count one unit down, and then one unit to the right, and plot that point. Continue doing that and connect the dots, and you will have plotted the first line. The slope of the second line is -4, so it also declines. For this line, count four units down, and then one to the right and plot that point. Likewise, continue this and connect the coordinates, and you will have your line. (See attachment for graph.)


The lines do indeed intersect at (-1, 10); our answer is verified by graphing.

5 0
3 years ago
Factoring Trinomals (a=1)<br>b^2 + 8b + 7
yulyashka [42]
b^2+8b+7=b^2+b+7b+7=b(b+1)+7(b+1)\\\\=\boxed{(b+1)(b+7)}
4 0
3 years ago
Sally has 16 marbles in her collection. John has only 7 marbles. Sally gives John 8 of her marbles. How much marbles does John h
Sati [7]

Answer:

The answer is 15

Step-by-step explanation:

hope this helps

5 0
3 years ago
I've hit multiple kids with my Truck
Afina-wow [57]

Answer: relatable

Step-by-step explanation: Plz give brainliest

4 0
3 years ago
Read 2 more answers
The sum of the first 70 positive odd integers.
Leokris [45]

Answer:

The answer is 4900

Do you understand?

Step-by-step explanation:

.

7 0
3 years ago
Other questions:
  • Is the factored form of 4k^2-28k+49
    5·1 answer
  • The height of a Los Angeles Lakers basketball player averages 6 feet 7.6 inches (i.e., 79.6 inches) with a standard deviation of
    7·1 answer
  • class of 24 students 7/8 are allowed to attend recess on Friday how many students will be allowed to attend recess
    14·2 answers
  • In x3, x is called the _____.
    6·2 answers
  • Write out 51,371,310
    10·2 answers
  • Can anyone help me with this:<br> 4a+23-22=32<br> Find the value of aa'
    15·2 answers
  • Jamel wants to buy a PS 5. He found it for $500
    9·1 answer
  • Mike traveled to Greensboro by car. Going there took 6 hours, and the return trip was four hours. Mike averaged a speed of 81 mi
    15·1 answer
  • Evaluate this expression. − 4/5 − (− 2/5 ) + 4/7
    9·2 answers
  • 14x to the power of -2 , for x=7
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!