Answer:
60%
Step-by-step explanation:
We need convert 3/5 into a percent in order to find the answer.
We can convert by first dividing 3 by 5 to find the decimal value.
3/5= .6
Now we need to multiply by 100 to make it a percentage
.6 x 100= 60
60%
Answer:
Area= 48 cm²
Step-by-step explanation:
Since the radius is 4, to get area, you must get 4 squared(4 x 4), which is 16. Then, multiply 16 to 3(pi), and the answer is 16 x 3 = 48.
D. 50 mph
Going upstream takes longer because of the flow of the water
Answer:
Refer below for detailed explanation.
Step-by-step explanation:
1. ax^2+bx+c=0.
Quadratic formula:
2. x = -b+-sqrt(b^2-4ac)/2a. .
Now two equations to find the factored form through these formulas above.
Through this identifying a,b and c.
ax^2+bx+c=0.
x^2+4x-21=0
Here a=1, b=4, and c= -21
Now applying in the quadratic formula.
x=-4+-sqrt(4^2-4(1)(-21))/2(1)
Now solve it and it becomes
x=3 or x= -7.
Another example :
x^2+3x-4=0
Here a=1, b=3 and c=-4.
X=-3+-sqrt(3^2-4(1)(-4))/2(1)
Now solve it and
x= -4 and x=1
Answer:
Step-by-step explanation:
The flagpole, the tether , and the ground distance to the anchor from the base of the pole, forms a right triangle.
The hypotenuse is the 50-foot-long tether.
The height at which the tether is tied above the ground , and the distance from the base of the pole to the anchor, forms the legs of the right triangle.
Let the distance from the base to the anchor be x.
Then from Pythagoras Theorem,
Take square root: