Step-by-step explanation:
Let width be x
according to question
length = 2x-4
perimeter = 58
now,
perimeter = 2(length + width)
58 = 2(x+2x-4)
58 = 6x-8
6x = 66
x = 11
putting value of x in length
2x-4
= 2 X 11 -5
= 18
hence the dimensions of the rectangle is 18 and 11
Answer:
x = 4
Step-by-step explanation:
Step 1: Write out the expression
5(2x - 9) = -5
Step 2: Solve for <em>x</em>
10x - 45 = -5
10x = 40
x = 4
Answer:
3 tablets
Step-by-step explanation:
Since the drug is to be administered in 20.75 mg tablets, we divide 62.25 by 20.75 to get the number of tablets required.
62.25 ➗ 20.75 = 3
3 tablets are to be administered
Answer:
y=-9x-1
Step-by-step explanation:
since it is perpendicular, the slope must be the opposite reciprocal (-9x) and now we plug the coordinates in, -1=0+b, b is -1
Answer:
6(x2 + 2)
Step-by-step explanation:
6
2
+
1
2
{\color{#c92786}{6x^{2}+12}}
6x2+12
6
(
2
+
2
)
{\color{#c92786}{6(x^{2}+2)}}
6(x2+2)
