Answer:
Width of 9cm and length of 17cm.
Step-by-step explanation:
To calculate an area of a rectangle, use the formula A=l*w. We know the length is 8cm longer than the width. So l = 8 + w. So the area is A= (8+w)*w.
We also know the area is 153. Substitute this value for A and solve.
To solve the quadratic, use the quadratic formula:
Here a=1, b=8 and c=-153.
Since w=9 or w=-17, substitute this value for w in l= 8+w to find l.
l = 8+9 = 17
or
l=8+-17 = -9
Since length cannot be positive, it must be l=17 and w=9.
Answer: the answer is 290
Step-by-step explanation:
Answer:
The two numbers are:
8 and 13
Step-by-step explanation:
a = 2b - 3 Eq. 1
a + b = 21 Eq. 2
Replacing Eq. 1 in Eq. 2:
(2b-3) + b = 21
3b - 3 = 21
3b = 21 + 3
3b = 24
b = 24/3
b = 8
from Eq. 1
a = 2*8 - 3
a = 16 - 3
a = 13
Check:
From Eq. 2:
a + b = 21
13 + 8 = 21
The graph of y= sin x from x=0 to x=2π starts at the origin ( 0, 0 ).
Answer:
Step-by-step explanation:
<h2><em>
There are 8 friends and you need to chop up 5 apples. The 5 apples will be divided by 8, which comes as an answer of 58th of an apple.</em></h2>
