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Artist 52 [7]
3 years ago
5

What value cannot be included in The domain 3x+1 2x+10

Mathematics
1 answer:
Eva8 [605]3 years ago
6 0

Answer:

x= 9

Step-by-step explanation:

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A plumber had two pipes. The ratio of the length of the longer pipe to the shorter pipe was 9:2. When he cut 1.65m from the long
Natasha2012 [34]

Answer:

1.1m

Step-by-step explanation:

Let L denote longer pipe and S denote shorter part

given:

L:S = 9:2

or L/S = 9/2

2L = 9S

S = (2/9)L-----(eq 1)

Also given:

L - 1.65 = 3S

L - 3S = 1.65 ----- (eq 2)

By substitution, sub eq 1 into eq 2

L - 3(2/9)L = 1.65

L - (2/3)L = 1.65

L [ 1 - (2/3) ] = 1.65

L/3 = 1.65

L = 1.65 (3) = 4.95  (substitute into equation 1)

S = (2/9)(4.95) = 1.1m

6 0
3 years ago
Simplify the expression. 1.7m2 + 6.5n – 4n + 2.5m2 – n
deff fn [24]
Combine the like terms 

1.7m^2 + 2.5m^2 + 6.5n - 4n - n

4.2 m^2 + 1.5 n
6 0
3 years ago
Read 2 more answers
The point slope form of the equation of the line that passes through (-4, -3) and (12, 1) is y-1- 1-12). What is the standard fo
kirill [66]
The point-slope form of the equation through those points is
.. y -1 = (1/4)(x -12)
Multiply by 4 and subtract the left side to put into general form.
.. x -12 -4(y -1) = 0
.. x -4y -8 = 0
Add 8 to put into standard form
.. x -4y = 8

6 0
3 years ago
From the top of the Eiffel tower, which is 984 feet tall, you look down and see your friend at a 60°
liberstina [14]

The answer is 492 feet.

If we picture the scenario as a right triangle, using trigonometric ratios, this problem can be solved.

cos 60° = x / 984

1/2 = x/984

x = 984/2

x = 492 feet

5 0
2 years ago
On Andy's swim team there are 8 girls and 12 boys. What percent of the team are boys?
vitfil [10]

Answer:

63% maybe I'm not positive on that

3 0
3 years ago
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