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Travka [436]
2 years ago
7

Solve for x in the diagram below?

Mathematics
1 answer:
bixtya [17]2 years ago
6 0

Answer:

x = 35

Step-by-step explanation:

the 3 angles lie on a straight line and sum to 180° , that is

40 + 2x + 30 + 40 = 180

110 + 2x = 180 ( subtract 110 from both sides )

2x = 70 ( divide both sides by 2 )

x = 35

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Natasha_Volkova [10]

Answer:

4x+x=5x

Step-by-step explanation:

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6 0
3 years ago
identify all the pionts that would lie on the line y=1/3x + 9. answer choices A: 0,9 B: -9,6 C: 3,10 D: 12,-5
OlgaM077 [116]

To find out if the points lie on the line y = 1/3x + 9, plug in the x value of the coordinate into the equation and see if the y value results in the same number


A. (0,9)

y = 1/3x + 9       Plug in 0 for "x"

y = 1/3(0) + 9

y = 9            This point is on the line


B. (-9,6)

y = 1/3x + 9         Plug in -9 for "x"

y = 1/3(-9) + 9

y = -9/3 + 9

y = -3 + 9

y = 6             This point is on the line


C. (3,10)

y = 1/3x + 9        Plug in 3 for "x"

y = 1/3(3) + 9

y = 3/3 + 9

y = 1 + 9

y = 10         This point is on the line


D. (12, -5)          

y = 1/3x + 9          Plug in 12 for "x"

y = 1/3(12) + 9

y = 12/3 + 9

y = 4 + 9

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Your answer is A, B, and C

3 0
3 years ago
The scale on a map is 1 cm for every 600 km. If Seattle and Maine are 10 cm apart on the map, then approximately how far apart a
kramer

Answer: 6000 km

Step-by-step explanation:

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When multiplying by 10 you add a zero to the end.

7 0
3 years ago
Read 2 more answers
Use Law of Sines or Law of Cosines to solve for the missing parts of each triangle​
ella [17]

Answer:

x = 9.7

Step-by-step explanation:

Given

The attached triangle

Required

Find x

Using law of sine, we have:

\frac{a}{sin A} = \frac{b}{Sin B}

So, we have:

\frac{x}{sin 32} = \frac{18}{Sin 100}

Make x the subject

x = \frac{18 * sin 32}{Sin 100}

x = \frac{18 * 0.5299}{0.9848}

x = 9.685

x = 9.7 -- approximated

4 0
3 years ago
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