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3 years ago

How does the graph of y = 3 differ from y = 3x?

Mathematics

1 answer:

polet [3.4K]3 years ago

8 0

Answer/Step-by-step explanation:

The graph with y =3 tells you that the y variable is going to be a constant 3.

The graph with y = 3x tells you that y will climb 3 times per each x variable that is added.

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An N-scale model railroad caboose is 3 inches long. N scale is 169 feet to 1 foot.

hammer [34]

9514 1404 393

Answer:

c/3 = 169/12
42 1/4 feet

Step-by-step explanation:

Since we want to know the actual number of feet, we can write the proportion with that in the numerator.

$\dfrac{\text{actual feet}}{\text{scale inches}}=\boxed{\dfrac{c}{3}=\dfrac{169}{12}}\\\\c=\dfrac{3\cdot169}{12}=42\frac{1}{4}\qquad\text{multiply by 3}$

The real caboose is 42 1/4 feet long.

4 0

3 years ago

Jens motorboat travels at a speed of 40 miles in Stillwater booth river flows at a speed of 4 mph how long will it take Jen to t

olganol [36]

Recall your d = rt, distance = rate * time.

bearing in mind that, when she's going downstream, she's not going 40 mph, she's going 40 + 4 mph, because the stream is adding its speed to it.

likewise, when she's going upstream, she's going 40 - 4 mph, because the stream is eroding speed from it, thus

$\bf \begin{array}{lccclll}
&\stackrel{miles}{distance}&\stackrel{mph}{rate}&\stackrel{hours}{time}\\
&------&------&------\\
Upstream&10&40-4&u\\
Downstream&10&40+4&d
\end{array}
\\\\\\
10=(40-4)u\implies \cfrac{10}{40-4}=u\implies \cfrac{10}{36}=u\implies \cfrac{5}{18}=u
\\\\\\
10=(40+4)d\implies \cfrac{10}{40+4}=d\implies \cfrac{10}{44}=d\implies \cfrac{5}{22}=d$

so, "u" is 16 minutes and 40 seconds.

and "d" is 13 minutes and about 38 seconds.

4 0

3 years ago

Hardest math question ever

ohaa [14]

You can name planes by one letter or using three points belonging to it that are <u>not</u> on the same line.

Another name for plane X could be:

Plane ABF, Plane BCF or Plane ACF. You may also get different names by reordering the three letters.

Coplanar means 'on the same plane'.

The points on the same plane as point A are:

B, C and F.

Collinear means 'on the same line'.

Other points on the same line as point C are:

A or B.

The line that intersects ED is:

AC, it can be also named AB or BC.

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1 year ago

What two consecutive integers have a sum of 47v

pav-90 [236]

Answer:

23 and 24

Step-by-step explanation:

6 0

2 years ago

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Tevin goes to a fast food restaurant and orders some tacos and burritos. He sees on the nutrition menu that tacos are 240 calori

Travka [436]

Answer:

Step-by-step explanation:

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3 years ago