70) perpendicular means you take the number in from of the x and flip it and switch the sign. that number will become your slope (m).
y=mx+b. plug in slope and point
-5=(7/9)(-4)+b. multiply
-5=(-28/9)+b. add over -28/9
b= -17/9. plug b and slope into original equation
y=(7/9)x+(-17/9) get rid of frac by multi by 9
(y=(7/9)x+(-17/9))*9
9y=7x+-17. subtract over 7x
-7x+9y=-17. answer
Same goes for the rest. number 72 the perp slope will be (1/3) and for 74 the answer will be x=-5 (that is a weird case)
Answer: 11
Step-by-step explanation: To determine which number is not a solution for the inequality, first begin by substituting in 3 for <em>x</em>.
So we have (3) + 6 < 14.
(3) + 6 is 9 and we can see that 9 < 14.
This means that this is a solution so we need to continue.
Now substitute a 5 in for <em>x</em>.
So we have (5) + 6 < 14.
(5) + 6 is 11 and we can see that 11 < 14.
This means that this is a solution so we need to continue.
Now substitute a 7 in for <em>x</em>.
So we have (7) + 6 < 14.
(7) + 6 is 13 and we can see that 13 < 14.
This means that this is a solution so we need to continue.
Now substitute an 11 in for <em>x</em>.
So we have (11) + 6 < 14.
(11) + 6 is 17 and we can see than 17 < 14.
Notice that the inequality 7 < 14 is not a true statement however because 17 is greater than 14, not smaller. This means that 11 is not a solution.
£350 because 420/6 is 70 and 70*5 is 350
Answer:
Perimeter of rectangle = 140 cm.
Step-by-step explanation:
As we know that,
Rectangle is defined as a quadrilateral having opposite sides are equal and each angle are at 90°.
Let the length of rectangle = l
And the width = b
Therefore,
Perimeter of rectangle is given by = 2 (l × b)
From the question,
Given:
length = l = 17.5 cm
Width = b = 40 mm = 4 cm
( because 1 cm = 10 mm)
Perimeter of rectangle is given by = 2 (l × b) = 2(17.5 × 4) = 140 cm.
Hence, the perimeter of rectangle = 140 cm.