Answer:
No
Step-by-step explanation:
Plug (-2,1) into -3x+y=5. This will make it -3(-2)+(1)=5. This is equal to 6+1=5. 7=5. 7 is not equal to 5. Therefore, (-2,1) is not a solution to the equation -3x+y=5.
If this helps please mark as brainliest
14) 6.20
16) 9.1
I hope that helps cuz
It would be answer choice A (10^5) because there are 5 10s in the problem
Answer:
3
Step-by-step explanation:
The value of "a" is the coefficient of x^2, so we know that is 2.
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<u>Solve for h</u>
Now, we have ...
2x^2 -8x +7 = 2(x -h)^2 +k
Expanding the right side gives us ...
= 2(x^2 -2hx +h^2) +k
= 2x^2 -4hx +2h^2 +k
Comparing x-terms, we see ...
-4hx = -8x
h = (-8x)/(-4x) = 2
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<u>Solve for k</u>
Now, we're left with ...
2h^2 +k = 7 = 2(2^2) +k = 8 +k
Subtracting 8 we find k to be ...
k = 7 -8 = -1
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And the sum of constants a, h, and k is ...
a +h +k = 2 +2 -1 = 3
The sum of the constants is 3.
-18+54
-17+53
-16+52
-15+51
-14+50
-13+49
-12+48
-11+47
-10+46
-9+45
-8+44
-7+43
-6+42
-5+41
-4+40
-3+39
-2+38
-1+37
1+35
2+34
3+33
4+32
5+31
6+30
7+29
8+28
9+27
10+26
11+25
12+24
13+23
14+22
15+21
16+20
17+19
18+18
