Answer:91
Step-by-step explanation:
13-6+21x(8-4)
13-6+21x4
13-6+84
13+84-6
97-6=91
Answer:
β = 90 - α.
Step-by-step explanation:
cos α = sin (90 - α) = sin β
Therefore β = 90 - α.
Answer:
1 9
2 11
3 13
4 15.
Step-by-step explanation:
When x = 1 y = 2(1) + 7 = 9.
x = 2, y = 2(2)+7 = 11
x = 3, y = 2(3) + 7 = 13
x = 4, y = 2(4) + 7 = 15.
<span>4. Unit rate implies how much in one hour. If 306 miles is in 10 hours, in one hour, it will be just one-tenth of 306 miles. So divide 306 by 10. To divide by 10, just place a point before one digit from the right. So the answer will be 30.6 milers/hour.
5. Unit rate here implies how much in one month. If 33.6 gallons is in 6 months, in one month, it will be just one-sixth of 33.6 gallons. So divide 33.6 by 6. The answer will be 5.6 gallons/month.</span>
Step-by-step explanation:
the formula for the area of a rectangle is
length × width
so, in our case
317.75 = length × 15.5
length = 317.75 / 15.5 = 20.5 m