10. 8x+4y=4. y=mx+b
-8x. -8x
4y=-8x+4
÷4. ÷4. ÷4
y = -2x +1
slope = -2. y-int= 1
11. slope is changing y over changing x
m = (y2 -y1)/(x2-x1) (0,-1) x1 = 0, y1=-1
(-4-(-1))/(-2-0) (-2,-4) x2 = -2, y2 = -4
(-4 + 1) / (-2)
-3/-2 = 3/2 answer is 3/2
12. b because negative cause it flip in x axis and it become flatter because of the fraction.
13. 2y =8-8x
÷2. ÷2 ÷2
y = 4 - 4x
Answer A
14. B
There's ambiguity here. Either the original expression is "5 times the square root of a" or 5 is the "index of the root."
Then "5 times square root of a" would be 5a^(1/2), or
1/2
5a
. On the other hand, if you meant 5 to be the "index of the root," then the correct result would be
1/5
a
If you're left unsure of which answer is correct, try copying the original problem onto paper and then writing out the answer you believe is correct. Upload this image to Brainly and then attach it to your question.
Answer:
<em>The width of the garden is 22.12 m and its length is 27.12 m</em>
Step-by-step explanation:
<u>Equations</u>
Let x = width of the garden
The length is 5 m longer than the wide, thus:
x + 5 = length of the garden
The area of the rectangular garden is
A=x(x+5)=600
Operating:
Solving with the quadratic formula:
Where a=1 b=5 c=-600:
Operating:
There are two solutions:
x = 22.12
x = -27.12
The negative solution is not valid because x is the width of the garden, thus
x = 22.12 m
And
y = 22.12 + 5 = 27.12 m
The width of the garden is 22.12 m and its length is 27.12 m
Division is multiplications opposites so for example if u have 12 crayons and u divide that by 6 you get 2 crayons.
SAS i believe :) sorry if im wrong!