Two angles are complementary when their sum is equal to 90°.
So, ( 2x + 39 ) + ( 7x - 21 ) = 90°
9x + 18° = 90°
x = 8°
Putting value of x in the angles given :
( 2x + 39 )° = 2(8°) + 39° = 55°.
( 7x - 21 )° = 7(8°) - 21° = 35°.
Therefore, the angles are 55° and 35°.
Hence, this is the required solution.
Answer:
manda a foto da atividade
Answer:
#16 has the greatest y - intercept,
Step-by-step explanation:
the y - intercept is the number that comes after x in y = ?x + ?
The equation is y = mx + b, where m is the slope and b is the y - intercept.
#13 has a y - intercept of 5, #14 has 0, #15 is 2, and #16 is 6
The y - intercept is the value of y when x is 0, or where the line is on the y -axis
Answer:
10408 ft
Step-by-step explanation:
convert miles to ft
4 miles/hr * 5280 ft/ mile = 21120 ft/hr
convert hr to min
21120 ft/hr * 1hr/60 min = 352 ft/ min
multiply by 40 minutes
352 ft/min * 40 min =14080 ft
