[11]
Equation: 180° - 75°
Measure: 105°
A straight line has an angle measurement of 180°. Since we have GFB, 75°, we can find EFB this way.
[12]
Equation: 90° - 40°
Measure: 50°
The little box in the angle shows that it is equal to 90°. Since they give us HGB, 40°, we can solve for EFB using this information.
Answer:
X is equal to 20
Step-by-step explanation:
Angles of a triangle equal 180.
110+x+x+30=180
2x+140=180
2x=40
x=20
If you input 20 as X back into the equation, then you can check that it is the right answer.
Answer:
all real numbers
Step-by-step explanation:
range is the possible y values, the graph stretches from negative infinity to positive infinity.
X <= -2 and 2x >= 6 is the smae as
x<= -2 Nd x >+ 3
Now x cannot satisfy both inequalities so the first one has no solution
The <em><u>correct answer</u></em> is:
At least 7 times.
Explanation:
Since 10% of the water in the jug is removed each time, this means that 100-10=90% of the water remains.
After two times, we would have 0.9(0.9) = 0.81 = 81% of the water; each time she pours, the number of times 0.9 is multiplied by itself changes. This makes this an exponential inequality (it is not an equation, as we want "less than half of the water"):
To solve this, we will use logarithms:
