Answer:
Step-by-step explanation:
The cosine ratio is for the given angle. In this case, the angle is B. So you need the side adjacent the angle B (next to) that is NOT the hypotenuse. You also need the hypotenuse. S you would need :
You can remember the ratios by using SOH-CAH-TOA.
Sine=Opposite/hypotenuse
Cosine=adjacent/hypotenuse
Tangent=opposite/adjacent
Answer:
Y=42 and x=7
Step-by-step explanation:
Referring that both angles equal each other we will us an = in both equations
2y-27=y+15
Subtract y from both sides
y-27=15
Now add 27 to both sides
y=42
Now check the solution
2(42)-27=57
(42)+15=57
So it is true! y equals 42!
_____________________________________________
3x+4=5x-10
Subtract 3x from both sides
4=2x-10
Now add 10 to both sides
14=2x
Now divide both sides by 2
7=x
Now check the solution
3(7)+4=25
5(7)-10= 25
so it is true x=7!
Answer:
1. 1+4 = 5in^2
2. 1+6 = 7cm^2
3. 8+4 = 12ft^2
4. 2(3) = 6m^2
5. 16+8 = 24yd^2
6. 5 + 10 = 15mi^2
Step-by-step explanation:
Each problem can be solved by just adding the areas of the individual simple shapes such as triangle and parallelogram.
Area of trigangle = *b*h
Area of parallelogram = b*h
when multiplying scientific notation all you' do is move the decimal whatever times the exponent says or the little number on the 10. Move it to the right when its positive and when its negative move it to the left . I hope that helped :)
As 27 will always be equal to 27, you can place whatever you want for x and y and the equation would still be satisfied, as it turns out that it doesn't depend on the x or y value.
Therefore, the system has infinite solutions.
Be safe!