Question: The function 
has a range of 
.
What is the domain?
Domain: 
Step-by-step explanation:
Domain is the input, and range is the output. In other words, the domain is the 
value, and the range is the 
(the whole value, output). So we will solve each one step by step, all with the same solution. To reiterate, what is done for -7, for instance, will be done for every other range.
Start with -7. Remember, solve this accordingly.
Replace the with the range
Solve
<em>(When adding negative a to a positive, it results in a negative.)</em>
That's how you solve it.
Answer:
1000
Step-by-step explanation:
Let the total number of children in school be y.
Then according to the question (4/5) of children are boys.
Then as we know that the sum of fractions is 1.
The fraction of girls in school is
1 - (4/5)= (1/5)
So this means (1/5) of the total children in school are girls which means
Y × (1/5) =200 , according to question.
Which gives y =200×5=100
This means that the total number of children in school is 1000.
The answer is C.
4x-y=-8
-y=-4x-8
y=4x+8
y=4x+8
0=4x+8
-8=4x
-2=x
Answer:
225 inches²
Step-by-step explanation:
Let the length be l and width be w
Condition 1
2l+2w=68 (Perimeter=68)--------(i)
Condition 2
l=3w-2 ---------(ii)
Putting equation (ii) in (i)
2(3w-2)+2w=68
6w-4+2w=68
8w-4=68
8w=68+4
8w=72
dividing both sides by 8
w=9 inches
now putting w=9 in (ii)
l=3(9)-2
l=27-2
l=25 inches
Now
Area of rectangle = l × w
=9 × 25
=225 inches²
