Answer: Your answer is: C. The range of the speeds after the course is smaller than the range of the speeds before the course.
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Answer:x = 1
y = 1
Step-by-step explanation:
The given system of simultaneous equations is expressed as
3x - 5y = - 2 - - - - - - - - - - - - 1
2x + y = 3 - - - - - - - - - - - - - 2
The first step is to decide on which variable to eliminate. Let us eliminate x. Then we would multiply both rows by numbers which would make the coefficients of x to be equal in both rows.
Multiplying equation 1 by 2 and equation 2 by 3, it becomes
6x - 10y = - 4
6x + 3y = 9
Subtracting, it becomes
- 13y = - 13
y = - 13/- 13 = 1
The next step is to substitute y = 1 into any of the equations to determine x.
Substituting y = 1 into equation 2, it becomes
2x + 1 = 3
2x = 3 - 1 = 2
x = 2/2 = 1
Answer:
F
Step-by-step explanation:
The formula for the volume of a square-based pyramid is:
V = a2(h/3), where "V" is equal to volume, "a" is equal to base edge, and "h" is equal to height.
You are given the value of the base edge (a = 6)
If the base edge is equal to (1/2)h, or (1/2)h = 6 then, 2(1/2)h = 2(6). This gives you h = 12.
Now you just plug into your formula:
V = 62(12/3) = 36(4) = 144
pls mark brainliest.
Answer:
x= -6 y=11, x=3 y=5, x=15 y= -3, and when x= -12 y= 15
Step-by-step explanation:
you enter the equation into your calculator into y=, then hit 2nd graph to look at your table to see if the variables matched.
Answer:
66.5 in or 5.5 ft (rounded)
Step-by-step explanation:
