If you were supposed to round it to the tenths it would be 32.70
10. The constant of proportionality would be 0.07 because in the equation y=kx 0.07 is substituted for k which stands for the constant of proportionality.
11. The equation is t=45d because for every hour you travel 45 miles (or 90/2, 135/3, etc.)
Answer:
8 weeks
Step-by-step explanation:
$2100 - $900 = $1200
$1200/$150 = 8 weeks
Step-by-step explanation:
Profit = Revenue - cost
= 2x³ + 30x - 130 - [2x³ -3x -520]
= 2x³ + 30x - 130 -2x³ + 3x + 520
= 33x + 390
Answer:
68.5
Step-by-step explanation:
Angles DEC and DAC are right angles, so their sum is 180°. DECA is a quadrilateral, which has a sum of interior angles equal to 360°. Then angle ACE is the supplement of angle D:
∠ACE = 180° -43° = 137°
Inscribed angle ABE has half the measure of central angle ACE, so we have ...
x° = 137°/2
x = 68.5
