This is the answer, hope this helps you
Yes it is. Hope this helps.
It must be 21.3 feet.
The sides of the triangle given to us are the side opposite the angle to the ground, 20, and the missing side is the hypotenuse.
opposite/hypotenuse is the ratio for sine:
sin 70 = 20/x
Multiply by x:
x sin 70 = 20
Divide both sides by sin 70:
(x sin 70)/(sin 70) = 20/(sin 70)
x = 21.283 ≈ 21.3
Answer:
1)Yes
2)No
Step-by-step explanation:
1) 3x^2 = -27
3 (-3)^2 = -27
Once you substitute your value in for x, you can follow the rule <u>PEMDAS</u> to solve the equation.
3 (-9) = -27
-27 =-27
2) 10 - 5x = y
In an ordered pair, the first number is x and the second number is y.
10 - 5 (-4) = 10
10 - 20 = 10
-10 = 10
-10 ≠ 10
PEMDAS: A rule that states solving an equation by the order of operations:
Parentheses
Exponents
Multiplication
Division
Addition
Subtraction
