Answer:
A = 38°
B = 50.32°
C = 91.68°
a = 8
b = 10
c = 12.77
Step-by-step explanation:
The first thing is to find the angle B, like this:
sin B = b * sin A / a = 10 * sin (38 °) / 8
sin B = 0.77
B = arc sin (0.77)
B = 50.32 °
For angle C, it would be:
C = 180 - 38 - 50.32
C = 91.68 °
Side c, we calculate it like this:
c = a * sin C / sin A = 8 * sin (91.68 °) / sin (38 °)
c = 12.77
Just multiply the with and the length by four (considering the scale factor is 4)
3x4=12 and 7x4=28
Answer:
40/y-16
Step-by-step explanation:
Step-by-step explanation:
step 1. graph f(x) = 2x + 6
step 2. y = mx + b. (slope intercept form)
step 3. b = 6 which is the y intercept so put a dot on (0, 6) or on the y axis at 6
step 4. m = 2 so put another dot up 2 and over to the right 1 from the y intercept
step 5. draw a line through your 2 points and you are done.
Answer:
Step-by-step explanation:
Sample size of 8 infants were taken and their birth lengths in inches recorded and also 6 months lengths.
If x is length at birth time, and y 6 month length
we have as per table below.
x y x^2 y^2 xy
1 19.75 25.5 390.0625 650.25 503.625
2 20.5 26.25 420.25 689.0625 538.125
3 19 25 361 625 475
4 21 26.75 441 715.5625 561.75
5 19 25.75 361 663.0625 489.25
6 18.5 25.25 342.25 637.5625 467.125
7 20.25 27 410.0625 729 546.75
8 20 26.5 400 702.25 530
Total 158 208 3125.625 5411.75 4111.625
SSxx = 3125.625 and SSyy = 5411.75