The hundreds column is the 3rd digit to the left of the decimal point, in this case it's the 1.

Look at the number 1 to the right of it. If its 5 or above, you round the number up, if it's below 5 you leave it the same.

In this case the number after the 1 is another 1, so you don't round it up.

118.380 to the nearest hundred is 100

4 0

3 years ago

(cos2A−cos2B)2+(sin2A+sin2B)2=4sin2(A+B)

lbvjy [14]

Answer:

${( \cos2A - \cos2B) }^{2} + {( \sin2A + \sin2 B }^{2}\\ = ( - 2\cos2A \cos2B + { \cos {}^{2} 2A } + \cos {}^{2} 2B) + (2 \sin2A \sin2B + \sin {}^{2} 2A + \sin {}^{2} 2B)\\ \\ { = - 2( \sin2A + \sin 2 B - \cos2 A - \cos2B) }\\ \\ { = - 2( - 4 \sin( A + B) \cos(A + B) } \\ \\ = {\tt{double \: angle \: of \: sine}}\\ \\ { = 2 \times 2(2 \sin (A + B) \cos(A + B)) }\\ \\ { = 4 \sin2(A + B)}$

8 0

2 years ago

Anni [7]

Answer:

first one. Since its X crosses or passes (2,0)

Step-by-step explanation:

5 0

3 years ago

Prime factorization to find the lcm and gcf of 86,42

Nadya [2.5K]

LCM is 86...............

8 0

3 years ago