The surface area of the prism will be given by:
SA=(surface area of triangles)+(surface area of rectangles)
surface area of triangles=2(1/2*3*4)=12 sq. units
area rectangles
the length of the hypotenuse will be:
c²=a²+b²
c=√(3²+4²)
c=√25
c=5
area=(3*5)+(4*5)+(5*5)=60
Total area=60+12=72 sq. units
Answer: 72 sq. units
Answer:
A: 15 + 17h = c B: 4 hours
Step-by-step explanation:
For A you do write the equation by finding your x and your y first
x= $15 fee
y= $17 per hour to clean a house
c= total amount of money charged
For B you can do the problem like this:
You subtract the total amount of money which is $83 by the fixed fee of $15* and then divide your total which is $68 by the amount of money charged per hour which is $17 and you get your answer which is 4 hours.
You can also do your problem like this:
You subtract $83 - $15 to get $68
Then you can multiply $17 per hour by the number of hours that add up to $68 to get your answer.
(No matter what you have to subtract the $83 by the $15)*
Hope that helps you out alot!!!!!
Explanation:
You want to first to substitute to form 3 equations.
5=4a+2b+c
12=9a+3b+c
-4=a-b+c
Now solve with whatever way you fell comfortable, I'm going to use elimination.
First eliminate c
7=5a+b
16=8a+4b --> 4=2a+b
Then I'll eliminate b,
3=3a
a=1
Now solve for b and c
7=5+b
b=2
1-2+c=-4
c=-3
Now for the equation:
y=x^2+2b-3
Hope this helps!
Answer:
Exact form: 11/2
Decimal form: 5.5
Mixed number form: 5 1/2
Step-by-step explanation:
H because it adds up to 46