Answer:
x = 75
Step-by-step explanation:
Triangle BDH
The angle must add to 180 degrees
36+ 39 + DHB = 180
75 + DHB = 180
DBH = 180-75
DHB = 105
DBH + x = 180 since it is a straight line
105+ x = 180
x = 75
Answer:
See attached photo for solutions
Step-by-step explanation:
Answer:
Step-by-step explanation:
Let's just check something out before we continue to fill in the blanks.
The zeros are (x - 1) and (x -5)
y = (x - 1)(x - 5) Remove the brackets.
y = x^2 - 6x + 5 Complete the square
y = (x^2 - 6x + 9) + 5 - 9
y = (x - 3)^2 - 4
So we have a minumum at (3, - 4) Now we can go through the rest of the questions.
Part A
(1,0) and (5,0)
Part B
The vertex is (3, - 4) See the completed square above.
Part C
It's a minimum. It is the point between the two roots on the x axis. The vertex drops below the x axis.
Part D
The axis of symmetry goes through the x value of the minimum.
x = 3
The answers are all in parts A B C D. I leave you to figure out where to put them. You should be able to do that.
Answer:
The measured weight of the water = 4.93 g
The percentage error in measured value = 1.4%
Step-by-step explanation:
Given:
Weight of the 10-mL graduate = 42.745 g
Combined weight of graduate and 5 mL water = 47.675 g
5 mL of water should weight = 5 g
thus, actual value of 5 mL water = 5 g
Now,
The measured weight of the water
= (Combined weight of graduate + 5 mL water) - Weight of the 10-mL graduate
= 47.675 g - 42.745 g
= 4.93 g
The percentage error in measured value
=
=
or
= 1.4%