Answer:
Step-by-step explanation:
Since this is a right angled triangle:
tan(∅) = opposite side/adjacent side
In this triangle:
tan(25°) = x/19
x = 8. 86 ≅ 8.9
Hi there!
So, our two equations are:
2x + 3y = 20 and
-2x + y = 4
We can see that the x's will cancel out because they're the same number, opposite signs. Then we're left with 4y = 24.
Divide 24 by 4, which is 6.
y = 6, then we plug that in to the first equation for y:
2x + 3(6) = 20
2x + 18 = 20
2x = 2
x = 1
So, she made her first mistake when adding the equations, adding 20 and 4, she somehow got 16.
The solution to the system is (1,6).
I hope I helped!
Answer:
792600
Step-by-step explanation:
For this question you can add four zeroes to the back of 792.6 andmove the decimal to get you the answer, hope this helps
It's also good to know that if the exponent was positive the answer would be 0.07926
Answer:
It is about 3.18 inches
Step-by-step explanation:
54 divide by 17 equals to 3.17647058824
estimate 3.17647058824 to hundredth place equals to 1.18
