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3 years ago

Which interval on the graph indicates she is stuck in a traffic jam? A B C D

Mathematics

2 answers:

frozen [14]3 years ago

7 0

Answer:

In interval B Kelly is stuck in a traffic jam.

Step-by-step explanation:

It is given that the graph shows Kelly traveling from home to her grandmother's house.

In the given graph x-axis represents the driving time and y-axis represents the distance driven by Kenny.

From the given graph it is clear that the distance driven by Kenny is remain constant in the interval B.

It other intervals, the distance driven by Kenny is increasing.

Therefore, in interval B Kelly is stuck in a traffic jam.

masha68 [24]3 years ago

5 0

Let's look at each one of the intervals.

Interval A
Interval A looks like she's going at a pretty steady pace, so Interval A is not the correct answer.

Interval B
Interval B looks like she stays at 2.5 for an hour. That looks like a traffic jam to me!

The correct answer is Interval B.

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Two counters are selected at random from a bag containing 5 red counters and 3 blue counters.

azamat

Answer:

1.4

Step-by-step explanation:

Probability of selecting a red counter :

Number of red counter / total number of counters

5 / (5 + 3) = 5 /8 = 0.625

Probability of selecting a blue counter = 0.375

Let number of red counters :

0, 1 or 2

0 red counters :

Expected value = x * p(x)

0 + (0.625*1) + (0.390625 * 2)

0 + 0.625 + 0.78125 = 1.40625

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3 years ago

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Ostrovityanka [42]

Answer:

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4 0

3 years ago

Are the functions f(x) = (x^2-1)/(x-1) and g(x)= x+1 equal for all x?

Vinvika [58]

$\bf \textit{difference of squares}
\\ \quad \\
(a-b)(a+b) = a^2-b^2\qquad \qquad 
a^2-b^2 = (a-b)(a+b)\\\\
-------------------------------\\\\$

$\bf f(x)=\cfrac{x^2-1}{x-1}\implies f(x)=\cfrac{x^2-1^2}{x-1}\implies f(x)=\cfrac{(\underline{x-1})(x+1)}{\underline{x-1}}
\\\\\\
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-------------------------------\\\\
\textit{they're, kinda, except that, when x = 1}
\\\\\\
g(x)=(1)+1\implies g(x)=2
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7 0

3 years ago

If m angle ECD is six less than five times m angle BCE, and mangle BCD = 162º. find each

Usimov [2.4K]

Answer:

see explanation

Step-by-step explanation:

let ∠BCE = x then ∠ECD = 5x - 6 and

∠BCE + ∠ECD = ∠BCD, substitute values

x + 5x - 6 = 162, that is

6x - 6 = 162 ( add 6 to both sides )

6x = 168 ( divide both sides by 6 )

x = 28

Hence

∠BCE = x = 28°

∠ECD = 5x - 6 = (5 × 28) - 6 = 140 - 6 = 134°

5 0

4 years ago

Read 2 more answers

Write the next three terms of the arithmetic sequence.

konstantin123 [22]

Answer:

t2=15

t3=28

t4=41

first term (a)=2

common difference (d)=13

General terms tn=a+(n-1)d

4 0

3 years ago