Answer:
Explanation:
Using volume of cylinder= TTrxrh
72=TTx 9 x h
h=2.55m
Answer:
Both sections of the exam are scored on a range between 200 and 800, making your final score between 400 and 1600. This makes 1600 the highest possible score you can receive on the SAT.
The current through the television is 3.5 A.
<h3>Electrical power</h3>
Electrical power P = IV where I = electric current and V = voltage.
Since we require the current through the television with a power of 0.8 kW which uses 230 V mains supply, we make I subject of the formula.
<h3>The current </h3>
So, I = P/V
Given that P = 0.8 kW = 800 W and V = 230 V,
substituting the values of the variables into the equation, we have
I = P/V
I = 800 W/230 V
I = 3.48 A
I ≅ 3.5 A
So, the current through the television is 3.5 A.
Learn more about electric current here:
brainly.com/question/15609964
Answer:
4y = 26
Explanation:
Given the system of equations:
2y-x=-7 (1)
x+2y= 33 (2)
To find the ordered pair (x, y) that satisfies the equation, we have to solve equations 1 and equations 2 simultaneously, finding the value of x and y as our solution.
Solving equation 1 and equation 2 simultaneously: To find y add both equations together to get:
4y = 26
Divide both sides by 4
4y/4 = 26/4
y = 6.5
To find x put y = 6.5 in equation 1:
2(6.5) - x = -7
x = 13 + 7
x = 20.
Therefore the ordered pair (20, 6.5) satisfies the equation.
Also, 4y = 4(6.5) = 26
