A homeowner leans a ladder against his house so that the top of the ladder makes a 31 degree angle with the house. What angle do
es the bottom of the ladder make with the ground? help! asap
1 answer:
If you put an imaginary line from the base of the ladder to the wall it would from a right angled triangle. The internal angles of a triangle all add up to 180degrees. With a right angled triangle, we know for sure one angle is going to be 90 degrees. One angle as you said is 31 degrees so you just add 31 and 90 which is equal to 121 then subtract it by that. SO:
180-(31+90)
180-121=59 degrees
or even easier
90-31= 59
180-(31+90)
180-121=59 degrees
or even easier
90-31= 59
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The phrases that are inequalities are:
B) -2 < 2
D) 7w > 5.6
E) f - 4 - 7 > 7 - 4 - f
<h3></h3><h3>Which of the following phrases are inequalities?</h3>
First, we define an equation as:
Where P and Q are two expressions.
On the other hand, an inequality can be:
These are inequalities because now the expressions P and Q can (and in some cases must) be different.
With that in mind, the phrases that are inequalities are:
B) -2 < 2
D) 7w > 5.6
E) f - 4 - 7 > 7 - 4 - f
As you can see, in these 3 we have the "lower than" or "larger than" symbols used, so these represent inequalities.
If you want to learn more about inequalities:
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