To form an equation with the given information, we use the formula :
y = mx + b, m being the slope and b being the y-intercept.
Since it is given that the slope is -9/7, we substitute m with -9/7.
y = -9/7x + b
To find b, we will substitute the known coordinates into the equation :
At point (-7 , 4), x = -7, y = 4
4 = -9/7 (-7) + b
4 = 9 + b
b = 4 - 9
b = -5
Now we know that b = -5, we will substitute b = -5 into the equation that we found earlier, y = -9/7 x + b :
y = - 9/7x - 5
To make it more readable, we can multiply the equation by 7:
7y = -9x - 5
7y + 9x + 5 = 0
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Answer : 7y + 9x + 5 = 0
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The answer is 24. to get this answer you would follow PEMDAS which means you divide first.
6 ÷ 3 =2 , so 22 + 2= 24
hopefully this helps
Answer:
width=20m,length=23m
Step-by-step explanation:
as shown in the figure which is attached
let width of pool =x
⇒ length of pool=x+3
width of walk =2
⇒width of outer boundary of walk=x+4 (2 on each side of pool)
length of outer boundary of walk=x+3+4=x+7
area of pool =x×(x+3)
area of walk+pool=(x+4)×(x+7)
given
total area of the pool and walk is 188 square meters more than the area of the pool
⇒(x+4)×(x+7)=188+x×(x+3)
⇒8x=160
x=20m
dimensions of pool
widh=20m
length=20+3=23m
Step-by-step explanation:
thanks you too merry Christmas
