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Radda [10]
3 years ago
13

X+3y=5 -2x-6y=-10 Solve using elimination

Mathematics
1 answer:
RSB [31]3 years ago
3 0
Slimination
multiply first equaiton by 2
2x+6y=10
add to second equiaotn
2x-2x+6y-6y=10-10
0=0
this is true so therfor they are the same equaiton

so solve
x+3y=5
3y=-x+5
y=-1/3x+5/3

subsituter values for x and get valuse for y

if x=2 then y=1
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45+-17
This is the same as subtracting 17 from 45
45-17=28
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3 years ago
What is the range of the function f(x) = |x| +2?
kykrilka [37]
Imagine the graph of f(x)=|x|. This can only output positive values (x \geq 0).

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5 0
3 years ago
Can Someone plz help? Thx
Andreyy89

Answer:

7. 2355 m

8. 1570 km

9. 157 cm

10. 40.82 m

Step-by-step explanation:

The circumference of a circle is pi * diameter or 2 * pi * radius.

If you are given the diameter, just multiply it by pi, 3.14.

If you are given the radius, then multiply the radius by 2 and then by pi, 3.14.

7. d = 750 m

circumference = pi * d = 3.14 * 750 m = 2355 m

8. d = 500 km

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9. r = 25 cm

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8 0
3 years ago
F(x)=3x-4 and g(x) = x2 find the value of f(3)-g(2) <br><br> show all work
zheka24 [161]

Answer: 1

f(x) = 3x - 4 => f(3) = 3.3 - 4 = 9 - 4 = 5

g(x) = x² => g(2) = 2² = 4

=> f(3) - g(2) = 5 - 4 = 1

Step-by-step explanation:

3 0
3 years ago
1) 0.52 + 1.6 + 8.26 =
Nadya [2.5K]

Step-by-step explanation:

1 10.38

2 16.77

3 11.499

4 11.486

5 0.0947

6 30.52875

7 525

8 32.57862069

9 16.5625

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