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Svet_ta [14]
3 years ago
8

What are the steps for constructing a copy of an angle using only a compass and a straightedge?

Mathematics
1 answer:
juin [17]3 years ago
6 0

Answer:

1. Use a straightedge

2. Draw dots on the line to mark the starting point  

3. Place the point of the compass on the point you made or was given

4. Extend the compass so that the pencil is on the 2nd point & make a an arc thru point B

5. Place the compass point on the starting point dot on the line and draw w/ the pencil to create an arc crossing the line.

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4. If 7a = 14, then 12a -
givi [52]

Answer:

24

Step-by-step explanation:

the value of a is 2, therefore 7x2=14 and 12x2=24

8 0
3 years ago
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The weather forecast calls for a total of 16 inches of snow over the next week. If it is estimated that 2.8 inches of snow will
grandymaker [24]

Answer:

1.5 inches

Step-by-step explanation:

8 0
2 years ago
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If a line crosses the y-axis at (0,1) and has a slope of 4/5, what is the equation of the line ?
stepladder [879]
The slope intercept form of a line is y=mx+b, where m is the slope and b is the y-intercept (the value of y when x=0).  We are given that the slope is 4/5 and the point (0,1) so we know m=4/5 and b=1 so:

y=4x/5+1  now to rearrange into standard form ax+by=c

y=(4x+5)/5

5y=4x+5

5y-4x=5

So the answer is D.

However, by convention, in standard form, the equation is usually expressed with a positive coefficient for x.

5y-4x=5 SHOULD be expresses so the x has a positive coefficient, divide both sides by -1 and you have the technically correct form:

4x-5y=-5

Apparently whomever/whatever posed this question to you was unaware of this convention :P
6 0
3 years ago
A train travels 60 km in 1 hour. How long will it take to go 150 km, if the speed is uniform
jeka94

Answer:

non -uniform

Step-by-step explanation:

because 120km=2 hour

150km=2 hour 30 min

may be the answer is non-uniform.

5 0
2 years ago
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A car is 160 inches long.
sladkih [1.3K]

Answer:

Length of truck = 160 +7% of 160 = 160 +11.2 = 171.2inches

3 0
3 years ago
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