Step-by-step explanation:
1.9 is a bigger number than 1.09
$1.09 = 1 and 9 hundredths
$1.90 = 1 and 9 tenths
1.09 < 1.9
Step-by-step explanation:
sin(A − B) = sin A cos B − cos A sin B
sin50°cos 40° - cos50°sin 40°
= sin(50-40)°
=sin10°
cos(A + B) = cos A cos B − sin A sin B
cos75°cos 15° - sin75°sin 15°
= cos(75+15)° = cos90° = 0
Answer:
Lines C and D
Step-by-step explanation:
For a pair of lines to be perpendicular ,
the product of their slope must be - 1 .
<em><u>Slope of A:</u></em>
<em><u>Slope of B:</u></em>
<em><u>Slope of C:</u></em>
<em><u>Slope of D:</u></em>
<em><u>Product of the slopes = - 1 </u></em>
For the first one :) x + 6, y - 10
Answer:
C
Step-by-step explanation:
y / 4 = 39 / 30
y / 4 = 1.3
y / 4 * 4 = 1.3 * 4 (What you do to on side you also do to the other)
y = 5.2
So, your answer should be C, 5.2