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salantis [7]
3 years ago
14

Need some help, Thank you!!! ^^

Mathematics
1 answer:
stira [4]3 years ago
4 0

Given:

3b+8\geq 14

To find:

The steps to solving the given inequality.

Solution:

We have,

3b+8\geq 14

Subtract 8 from both sides.

3b+8-8\geq 14-8

3b\geq 6

Divide both sides by 3.

\dfrac{3b}{3}\geq \dfrac{6}{3}

b\geq 2

Two steps are:

1. Subtract 8 from both sides of the inequality.

2. Divide both sides of the inequality by 3.

Therefore, the correct option is A.

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Something added by -8 equals 20
LiRa [457]

Answer:

28 is added by -8 equals 20

Step-by-step explanation:

The equation to calculate something added by -8 equals 20 is as follows:

x-8 = 20

x = 20+8

x = 28

28 is added by -8 equals 20

8 0
3 years ago
Read 2 more answers
Can a smart person help me out? I really need help with these three questions​
Illusion [34]

Answer:

1.= 2.4 Hours

2.= 8 miles per hour

3.= 150 miles per hour

Step-by-step explanation:

4 0
3 years ago
Suppose that the mean score on a creativity test is 16 and the standard deviation is 4. You are told that the distribution is no
Savatey [412]

Answer:

P(12

And we can find this probability on this way:

P(-1

We expect around 68.27% between the two scores provided.

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

Let X the random variable that represent the scores of a population, and for this case we know the distribution for X is given by:

X \sim N(16,4)  

Where \mu=16 and \sigma=4

We are interested on this probability

P(12

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{x-\mu}{\sigma}

If we apply this formula to our probability we got this:

P(12

And we can find this probability on this way:

P(-1

We expect around 68.27% between the two scores provided.

5 0
3 years ago
A student drove to the university from her home and noted that the odometer reading of her car increased by 16.0 km. The trip to
notka56 [123]

Answer:

Average speed is 48 km per hour

Step-by-step explanation:

A student drove to the university from her home and noted that the odometer reading of her car increased by 16.0 km. The trip took 20.0 min. (a) What was her average speed? in km/hr

Distance traveled is 16 km and the time taken is 20 minutes

convert minutes into hour. to convert minutes into hour we divide by 60 because 1 hour = 60 minutes

\frac{20}{60} =\frac{1}{3}

so time = 1/3  and distance = 16

Average speed = distance by time

speed =\frac{16}{\frac{1}{3} } =\frac{48}{1}= 48

Average speed is 48 km per hour

4 0
3 years ago
Which order pair is not included in the graph of y= 3x+6 the coordinates is (1,9) (10,36) (3,12) (6,18)
serious [3.7K]

Answer:

(3,12)

Step-by-step explanation:

you would put the 12 as y then 3×3=9+6=15 and 12 doesn't equal 15

3 0
3 years ago
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