Answer:
he will have to go one more week and all together it would be five weeks
Step-by-step explanation:
16/4=4
you need four more to get to 20, and if he does 4 quizzes a week he only needs one more week.
Answer:
D. Mr. X
Step-by-step explanation:
Answer:
a) area = side²
225 in² = side²
side = √225 = 15 inches
b) 15 inches per side x 4 sides x $1.35 per inch = $81.00
Step-by-step explanation:
Answer:
4.8
Step-by-step explanation:
b to c is 3.6
b to d is 8.4
if c is in the middle , you would subtract 8.4 and 3.6
Answer:
You can proceed as follows:
Step-by-step explanation:
First solve the quadratic inequality
. To do that, factorize, then we have that
. This implies that
![x-1\leq 0\, \text{and}\, x-4\geq 0](https://tex.z-dn.net/?f=x-1%5Cleq%200%5C%2C%20%5Ctext%7Band%7D%5C%2C%20x-4%5Cgeq%200)
or
![x-1 \geq 0\, \text{and}\, x-4\leq 0](https://tex.z-dn.net/?f=x-1%20%5Cgeq%200%5C%2C%20%5Ctext%7Band%7D%5C%2C%20x-4%5Cleq%200)
In the first case the solution is the empty set
. In the second case the solution is the interval
. Now we have that
![A=[1,4]](https://tex.z-dn.net/?f=A%3D%5B1%2C4%5D)
![B=(3,5)](https://tex.z-dn.net/?f=B%3D%283%2C5%29)
.
To show that
consider
. Then
, this implies that
, then
. Now, to show that
consider
, then
, then
, then
, this implies that
.
Observe the image below.