Answer:
It is B. hyperbola, 45 degrees.
SteIt is p-by-step explanation:
If we rotate the standard form x^2 - y^2 = 1 through 45 degrees we get xy = 1/2.
xy = -2.5 comes from x^2 - y^2 = -5 being rotated 45 degrees.
Answer: C = 3 mph is the rate of the current.
Step-by-step explanation:
Hey there!
<u />
<u>You can use the distance formula (d = rt) to solve this problem. </u>
Downstream trip: d = 55 miles, t = 5 hours, and r = R + C
R + C is their rowing speed (R) plus the rate of the current (C).
Upstream trip: d = 55 miles, t = 11 hours, and r = R - C
R - C is their rowing speed (R) minus the rate of the current (C).
Downstream: 55 mi. = (R + C)5 hrs. Divide both sides by 5: R + C = 11
Upstream: 55 mi. = (R - C)11 hrs. Divide both sides by 11: R - C = 5
<u>Calculations</u>
R + C = 11 Subtract C from both sides.
R = 11 - C Substitute this into: R - C = 5
(11 - C) - C = 5 Simplify and solve for C
11 - 2C = 5 Add 2C to both sides.
11 = 2C + 5 Subtract 5 from both sides.
6 = 2C Divide both sides by 2
C = 3 mph is the rate of the current.
~I hope I helped you! :)~
Answer:
C
Step-by-step explanation:
divide 14 by 4 to solve it, you get 3.5 or 3 1/2
given h = 600 - 16t ( add 16t to both sides )
16t + h = 600 ( subtract h from both sides )
16t = 600 - h ( divide both sides by 16 )
t = 
when h = 400
t = 
= 
= 12.5 seconds
<span>1. For the data in the table, does y vary directly with X? If it does write an equation for the direct variation.(X,y) (8,11) (16,22) (24,33)
</span><span>
Yes y=1.375x
</span><span>2.for the data in the table, does y vary directly with X? If it does write an equation for the direct variation. (X,y) (16,4) (32,16) (48,36)
</span>No y does not very directly with x*** <span>
</span><span>3. (Time/hour,distance/miles)(4,233) (6,348) (8,464) (10, 580)
Express the relationship between distance and time in a simplified form as a unit rate. Determine which statement correctly interprets this relationship.
</span><span>58/1 your car travels 58 miles in 1 hour
</span><span>4.what is the slope of the line that passes through the pair of points (2,5) and (8,3)
</span>-1/3
<span>4.what is the slope of the line that passes through the pair of points (-5.2,8.7) and (-3.2,2.7)
</span>
-3
<span>5. What is the slope of the line that passes through the pair of points (3/2,-2) and (-3,7/3)
-26/27
</span><span>6.write an equation in point slope from for the line through the given point with the given slope (5,2) m=3
Y-2=3(X-5)
7. Write an equation in point slope form for the line through the given point with the given slope (-3,-5) m=-2/5
Y+5=-2/5(X+3)
</span><span>8. Write an equation in point slope from for the line through the given point with the given slope. (4,-7) m=-0.54
Y+7=-0.54(x-4)
9. The table shows the height of a plant as it grows. Which equation in point slope from gives the plants height (time,plant height) (2,16)(4,32)(6,48)(8,64)
Y-16=8(X-2)***
</span>
<span>10. Write y=-2/3x+7 in standard form
2x+3y=21
11. Write y=-1/2x+1 in standard form using integers
X+2y=2
</span>
