a:
Just divide both sides by 7. Since 7 is positive, you don't need to change the inequality sign:
In set notation, we write
b:
Subtract 9 from both sides:
In set notation, we write
Answer:
four multiplied by x add negative three equals negative eleven
Step-by-step explanation:
Yes...this is linear because when graphed, makes a straight line
Answer:
The corresponding side lengths of the figure will be proportional based on the scale factor.
Step-by-step explanation:
A dilation can either be an enlargement or reduction. If the scale factor is less than one then the figure will be a reduction. If the scale factor is one or larger then the figure will be an enlargement. Since a dilation is basically multiplying the figure will always be proportional to the original figure.
Answer:
-3± √5
Step-by-step explanation:
It is given that,
m² + 6m = -4
<u>Points to remember</u>
Solution of a quadratic equation ax² + bx + c = 0
x = [-b ± v(b² - 4ac)]/2a
<u>To find the solution of given equation</u>
m² + 6m = -4
⇒ m² + 6m + 4 = 0
Here a = 1, b = 6 and c = 4
m = [-b ± v(b² - 4ac)]/2a
= [-6 ± √(6² - 4*1*4)]/2*1
= [-6 ± √(36 - 16)]/2
= [-6 ± √20]/2
= [-6 ± 2√5]/2
= -3± √5
