Step-by-step explanation:
You have this rule, if there is < 30° then value of y is
y=12✓3:2
y=6√3
And Pitagora's theorem:
c²=a²+b²
In this case:
(12√3)²=y²+x²
Then x is:
x²= (12√3)²-y²
x²= (12√3)²-(6√3)²
x²=432- 108
x²= 324
x=✓324
x=18cm
Answer:
Step-by-step explanation:
the answer is 122
Answer:
Josh makes $36 more per hour than Greg.
Step-by-step explanation:
First, you need to determine the amount Josh earns per hour as you know that it takes him 5 hours of work to save $480:
5x=480
Now, you can solve for x:
x=480/5
x=96
Then, you need to determine the amount Greg earns per hour as you know that it takes him 8 hours of work to save $480:
8y=480
Now, you can solve for y:
y=480/8
y=60
96-60=36
According to this, the answer is that Josh makes $36 more per hour than Greg.
Answer:
Multiply the bottom one by -4
Step-by-step explanation:
to cancel in a system of equations, there must be a negative and a positive of both variables. - times - equals +, so multiply -x by -4 to get 4x, thus cancelling -4x with 4x.
Answer:
Connie can cut the ribbon into 12 foot pieces.
Step-by-step explanation:
For these problems we should find the GCF, which is 12.
