Answer:
51 meters
Step-by-step explanation:
The area can be found by adding the areas of all the triangles. The top right triangle has an area of 7.5. The bottom right triangle has an area of 18. The bottom left, also has an area of 18. And finally, the top left which has an area of 7.5. 18 + 18 + 7.5 + 7.5 = 51.
Answer:
Step-by-step explanation:
You would substitute "2x" for every "x" in the function in the same way you would substitute any other number.
So if f(x)=Sqrt[7x²-3x], then: f(2x)=Sqrt[7(2x)²-3(2x)]
=Sqrt[7(4x²)-3(2x)]
=Sqrt[28x²-6x]
Answer:
47
Step-by-step explanation:
Communative property since the numbers were just switched into different places of the equation.
Draw (or do whatever) 13 in tens and ones [1 ten block ,3 ones blocks] then draw 7 in ones. then show the breaking apart of the tens block then subtract it by 7.
Answer:
sin -1 degrees.
Step-by-step explanation:
sin (A - B) = sin A cos B - cos A sin B
Therefore sin 9° cos 10°- cos 9º sin 10° = sin (9 - 10)
= sin -1 degrees.