Step-by-step explanation:
always Pythagoras with the coordinate differences as sides and the distance the Hypotenuse.
c² = (2/3 - 5/3)² + (-10/9 - -7/9)² = (-3/3)² + (-10/9 + 7/9)² =
= (-1)² + (-3/9)² = 1 + (-1/3)² = 1 + 1/9 = 10/9
c = sqrt(10)/3
You got it correct
about + - 10.4
Answer:
3
Step-by-step explanation:
Answer:
x = 25
Step-by-step explanation:
In any triangle, the sum of all 3 angles is ALWAYS 180 degrees. So we can make this into an equation.
4x + 2x+ 10 + x - 5 = 180
Now we combine the like terms.
7x + 5 = 180
Subtract 5 from both sides.
7x = 175
Now divide by 7 on both sides.
x = 25
Answer:
Her mistake was not multiplying both sides of the equation by 0.5
Step-by-step explanation:
The mistake is in Step 1--Tiffany was correct in multiplying the left side (h / 0.5) by 0.5 but made an error on the right side by dividing the 7 by 0.5 instead of multiplying.
<em>Thus, h= 3.5</em>
