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coldgirl [10]
3 years ago
6

- Write a system of equations in which one equation could be multiplied by-2 and the

Mathematics
1 answer:
iris [78.8K]3 years ago
6 0

2x+5y=9

3x+7y=13

6x+15y=27

-6x-14y=-26

y=1

x=2

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Help me someone please ASAP
laiz [17]

Answer:

see below

Step-by-step explanation:

1a) -5(1) + 11  = 6

1b) -5(-3) + 11 = 26

1c) -5(0) + 11 = 11

1d) -5(1.2) + 11 = 5

1e) f of x equals negative 5x plus eleven

8 0
4 years ago
How do you expand (x-10)(x-10)​
denpristay [2]
1 Answer
1.multiply the First terms. x⋅x=x2.
2.multiply the Outside terms. x⋅10=10x.
3.multiply the Inside terms. −10⋅x=−10x.
4.multiply the Last terms. −10⋅10=−100.
5.add all of the answers together. x2+10x−10x−100.
6.combine like terms. x2+10x−10x−100. =x2−100.
4 0
4 years ago
Please help how to solve
tatiyna

Answer:

=  > in \: the \: bigger \: triangle \\ height = 14 \: ft \\ base = 22.5 \: ft \\  =  > in \: smaller \: triangle \\ height = x \: ft \\ base = 9 \: ft \\ using \: ratios \\  \frac{bigger \: height}{smaller \: height}  =  \frac{bigger \: base}{smaller \: base}  \\  \frac{14}{x}  =  \frac{22.5}{9}  \\  \frac{14}{x}  = 2.5 \\ x =  \frac{14}{2.5}  \\ x = 5.6 \: ft

7 0
3 years ago
Anyone know the answer ill mark u as brainlist​
Maslowich

Answer:

your answer would be D

Step-by-step explanation:I really hope you get it right <3 : )

7 0
3 years ago
Read 2 more answers
If f(x)= (3x+7)^2, then f(1) = ?
Crank
To find f(1), substitute 1 for x.

f(1) = (3(1)+7)²
f(1) = (3+7)²
f(1) = 10²
f(1) = 100
3 0
3 years ago
Read 2 more answers
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