The only solution is (4, -1/2).
The first one is wrong, because of you substitute X and Y or in this case (12, -5/2) into 3x+2y, you get 31=11, Which is an untrue mathmatical statement.
The second one is right, for the same reason. If you substitute X and Y you will get 11=11. which is a true statement.
The third one is wrong, because you have found a true statement.
The fourth one is wrong because you found an untrue statement.
1 and 1/4 cup of raisins and 2 and 1/2 cups of nuts for a total of 3 and 3/4 cups.
Answer:
m<1 = 76°
m<2 = 104°
m<3 = 76°
m<4 = 104°
Step-by-step explanation:
m<1 and m<3 are vertical angles so, these angles have the same measure of 76°. m<2 and m<4 are also vertical angles which have the same measure. To find m<2, use m<1. m<1 and m<2 are <u>supplementary angles</u> which add up to 180°. Subtract 180 from 76 which is 104.
<span>0x14BD. hope it helped
</span>
Answer:
<h2>4</h2>
Step-by-step explanation:
<em>Look at the picture.</em>
<em />
<em>At the beginning we have to calculate what part of the angle 360° is the given angle 75°.</em>
<em /><em />
<em>The same part of the circumference of the circle is the arc defined by this central angle.</em>
The circumference <em>C = 20</em>.
Therefore