Answer:
18x
Step-by-step explanation:
j=18
k=x
18xor18
I do not understand this question
(4x + 7)² = 60
(4x + 7)(4x + 7) = 60
(4x² + 28x + 28x + 49) = 60
4x² + 56x + 49 = 60
<u> -49 -49</u>
4x² + 56x = 11
4x² + 56x - 11 = 11 - 11
4x² + 56x - 11 = 0
x = <u>-56 +/- √(56² - 4(4)(-11))</u>
2(4)
x = <u>-56 +/- √(3136 + 88)</u>
8
x = <u>-56 +/- √(3174)</u>
8
x = <u>-56 +/- 56.34</u>
8
x = -7 +/- 7.0425
x = -7 + 7.70425 x = -7 - 7.70425
x = 0.70425 x = -14.70425
6 < k
k is greater then 6. That means that you will go to the right of 6. This will show that k can be any number larger then 6
Hope this helped!
~Just a girl in love with Shawn Mendes
1. System B from System A by replacing one equation with itself where the same quantity is added to both sides
2. Yes, both system A and system B are equivalent and therefore has the same solution
<h3>How to prove the statements</h3>
System A
x − 4y= 1
5x + 6y= −5
System B
x = 1+4y
5x + 6y= −5
1. System B can be gotten from system A by
from the first equation of A
x − 4y= 1
Make 'x' subject of formula
x = 1 + 4y
This makes it equal to tat of system B
Thus, replacing one equation with itself where the same quantity is added to both sides
2. System A
x = 1 + 4y
5x + 6y= −5
System B
x = 1 + 4y
5x + 6y= −5
From the above equations, we can see that both system A and system B are equivalent and therefore has the same solution.
Learn more about linear equations here:
brainly.com/question/4074386
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Answer:
r=3,r=25/27,r=3
Step-by-step explanation:
In equation y=rx
make r the subject of the formula by dividing both sides by x
r=y/x
1). when y=15 and x=5
r=15/5
r=3
2). when y=25 and x=81/3
r=25/81/3
r=25÷81/3
r=25*3/81
r=75/27
r=25/27
3). when y=33 and x=11
r=33/11
r=3
