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Ne4ueva [31]
3 years ago
11

A bus travels 20km in 30 minutes. what is the average speed of the bus?

Mathematics
1 answer:
larisa [96]3 years ago
5 0

Answer: 40km/h

Step-by-step explanation:

distance = 20km

time = 30 min conver to hours. 30min(\frac{1h}{60min})=0.5h

velocity = ?

d=v*t\\v=\frac{d}{t}

v=\frac{20}{0.5} \\v=40km/h

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What is the range of the function g(x) = |x - 12| - 2?
PtichkaEL [24]

Step-by-step explanation:

The function is given by

It is an absolute value function which has a v- shaped graph.

The vertex form of an absolute function is given by y = a|x-h| +k, where (h,k) is the vertex.

Comparing the given equation with this, we have

h = 12

k = -2

Hence, the vertex would be (12,-2).

Now, the range of the function is the set of y values for which the function is defined.

This function has vertex of (12,-2). hence, it would not take any values which are less than -2. Please see the attached graph.

Hence, the range would be the all y values greater than or equal to -2.

Hence, the range is given by

8 0
2 years ago
While working at his neighborhood math tutoring center researching the comprehension level of the students Dion investigated tha
elena-14-01-66 [18.8K]

Answer:

Step-by-step explanation:

While working at his neighborhood math tutoring center researching the comprehension level of the students Dion investigated that the distribution of the student test scores are normally distributed with a mean of 79.13 and a standard deviation of 6.34. What is the probability that the student scores less than 60.11

We solve using z score formula

z = (x-μ)/σ, where x is the raw score, μ is the population mean, and σ is the population standard deviation.

z = 60.11 - 79.13/6.34

6 0
3 years ago
Three friends each create 4 bags of starter bread dough. After ten days, each of those four bags is divided into four more bags
Marysya12 [62]
It pass 48 days ( please comment if is right
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3 years ago
Find the function value f (6) if f(x) = 4x-10
Olenka [21]
So first you plug 6 into the equation which is 4(6)-10.
Using PEMDAS, you solve what’s in the parenthesis first and you get 24-10.
24-10=14
f(6)=14
8 0
3 years ago
Find the probability:
Vikki [24]
Part 1:

3+2+1 = 6 total units

There is only 1 history book.

1/6 total.

Part 2:

6-1 (we've lost the history book) = 5 total units

3 novels. = 3/5

Part 3:

1/6 * 3/5 = 3/30 or 1/10


3 0
2 years ago
Read 2 more answers
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