K=wv2 divided by 2g for w
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Let f (x) 4x -5 and g (x)= 6x -3 find f (x) - g (x)
The Ross family and the Russell family each used their sprinklers last summer. The water output rate for the Ross family's sprinkler was 35L per hour. The water output rate for the Russell family's sprinkler was 30L per hour. The families used their sprinklers for a combined total of 55 hours, resulting in a total water output of 1725L. How long was each sprinkler used?
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Answer:
7 sweatshirts costs $91
Step-by-step explanation:
Well, first we have to find how much each sweatshirt costs alone. The sweatshirts are $13 each. So, if we multiply 13 by 7, you'll get the amount that 7 sweatshirts costs.
I'm 97% sure this is correct
Hope this helped! Please mark brainliest!
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I suppose the 2th equation is 2x-3y+4=0
5x-2y=1 ........|*2 | *3
2x-3y=-4....... |*(-5) | *-2
==> -4y+15y=2+20==>11y=22==>y=2
and 15x-4x=3+8 ==>11x=11 ==>x=1
Proof:
5*1=? 2*2+1 yes
2*1-3*2+4=? 0 yes (linear combinaison method)
Solve to find x and y in the diagram.
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A:12
B:-2
C:2
D:-12
E:10
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Answer:
C
Step-by-step explanation:
to evaluate f(- 1) , substitute x = - 1 into f(x)
f(x) = - 5x² - 3x + 4 , then
f(- 1) = - 5(- 1)² - 3(- 1) + 4 = - 5(1) + 3 + 4 = - 5 + 7 = 2
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Answer:
-9/4 -4i
Step-by-step explanation:
-3i + 3/4 + 2i -(3+ 3i)
The first step is to simplify the terms
-3i + 3/4 + 2i -(3+ 3i)
Now we distribute the negative sign
-3i + 3/4 + 2i -3- 3i
Now combine like terms
3/4 -3 -3i+2i -3i
-2 1/4 -4i
Change the mixed number to an improper fraction.
-(4*2+1)/4 -4i
-9/4 -4i