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natulia [17]
3 years ago
11

The graph shows the speed of sams car over time which best describes what is happening in section c

Mathematics
1 answer:
JulsSmile [24]3 years ago
8 0
The graph is missing, so I am using a graph for a similar question.

It migh even be the same question, but the important thing is that I am going to explain you the situation in several sections of this diagram and so you will be able to work this kind of problems by  your selfl.

The graph is attached (see the figure).

The graph shows the evolution of the speed (vertical-axis) over time (horizontal-axis).

In the section A, the speed increases linearly: so the car is speeding up uniformly (constant acceleration).

In the section B, the line is horizontal which shows that the speed is constant. That is a uniform motion.

In the section C, the speed is decreasing uniformly, so the car is slowing down with uniform negative acceleration.

So, for this graph, the answer is: in the setion C. the car is slowing down (uniformly).

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Ronnie misses the school bus 1 out of every 30 school days. He sets up the proportion 1/30=180/x to predict how many days he wil
bija089 [108]

Answer:

1/30=x/180

Step-by-step explanation:

The way that Ronnie wrote his proportion is wrong since 180/x is saying that he will miss 180 days of school. The fraction 1/30 means that he would miss 1 day out of 30 days, which is correct. But the fraction 180/x would mean that he is missing 180 days of school, which is wrong.

Solving:

1/30=x/180

180/30=6

1 x 6 = 6 days

He will miss 6 days of school in 180 days.

5 0
2 years ago
Find the measure of the missing sides of the triangle if each missing angle is 45°
Scorpion4ik [409]

Answer:

the side lengths are both 7

Step-by-step explanation:

Because the angles are both 45 degrees, the triangle is isosceles:  the side lengths are equal.   The hypotenuse of a model 45-45-90 triangle is √2 when the sides are 1 each:

√2        1

------ = -------

7√2       x

                                          1         1

This can be reduced to  ----- = -----

                                           7        x

which makes it obvious that the side lengths are both 7.

6 0
2 years ago
Can I get help on 1-20 please. if it’s possible step by step explanation.
Leni [432]

Answer:

I solved the question 1 to 14 but I'm sorry I cannot do 15 -20

Step-by-step explanation:

hope this helps

6 0
3 years ago
Find the rate of change
Tatiana [17]
\bf slope = m = \cfrac{rise}{run} \implies 
\cfrac{ f(x_2) - f(x_1)}{ x_2 - x_1}\impliedby 
\begin{array}{llll}
average~rate\\
of~change
\end{array}\\\\
-------------------------------\\\\
h(x)= 2^x  \qquad 
\stackrel{2\le x\le 4}{\begin{cases}
x_1=2\\
x_2=4
\end{cases}}\implies \cfrac{h(4)-h(2)}{4-2}\implies \cfrac{2^4-2^2}{2}
\\\\\\
\cfrac{16-4}{2}\implies \cfrac{12}{2}\implies 6
5 0
3 years ago
A registration fee for a used car is 0.8% of the sale price of $5,700. How much is the fee
natima [27]

\bf \begin{array}{|c|ll} \cline{1-1} \textit{a\% of b}\\ \cline{1-1} \\ \left( \cfrac{a}{100} \right)\cdot b \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{0.8\% of 5700}}{\left( \cfrac{0.8}{100} \right)5700}\implies 45.6

5 0
3 years ago
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