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aksik [14]
3 years ago
9

The race speeds for the top eight cars in a 200-mile race are listed below. Use the range rule of thumb to find the standard dev

iation.189.1 185.9 189.2 182.4 175.6 184.2 188.3 177.2a. 7.5b. 6.8c. 3.4d. 1.1
Mathematics
1 answer:
andre [41]3 years ago
7 0

Answer:3.4d

Step-by-step explanation: From Range Rule of thump:

Standard Deviation = (Range)/4

=[(Highest value - lower value)]/4

=(189.2 - 175.6)/4

=13.6/4

=3.4

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You can buy 5 stickers for $3. Write a proportion that gives the<br> cost c if you buy 12 stickers.
Reptile [31]

Answer:

$7.5

Step-by-step explanation:

Let

Quantity of stickers=x

Price of stickers=y

5 stickers cost $3

12 stickers cost $y

x/y = x/y

5/3 = 12/y

Cross product

5y=12*3

5y=36

Divide both sides by 5

5y/5 = 36/5

y=7.5

12 stickers= $7.5

Therefore, the price of 12 stickers= $7.5

5 0
3 years ago
An IV infiltrates with 330 mL remaining in the bag. It was restarted at 1015 at a rate of 30 mL/hr. What is the IV completion ti
DochEvi [55]

Answer:

11 hours

Step-by-step explanation:

I came up with this answer by dividing the IV infiltrate in the bag by the rate. This gave the completion time.

Volume of IV infiltrate = 330ML

Rate at which it was running = 30 ML/hour

The IV completion time = volume/rate

= 330 ML/30 ML

= 11 hours

Therefore the IV completion time is 11 hours.

3 0
3 years ago
Evaluate (5 - 8) + (-3-2) Round to the nearest hundredths place​
SCORPION-xisa [38]

Answer:

The answer is 8.

I'm pretty sure.

8 0
3 years ago
Read 2 more answers
Plzzzzzzzzzzzzzzzzaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
erastovalidia [21]

Answer:

Option A

Step-by-step explanation:

Number of employees exceeded their sales quota = 17

Number of employees met their sales quota = 13

Number of employees didn't exceed their sales quota = 3

Now, we need to find the ratio of the number employees who exceeded their sales quota to the number of employees who didn't exceed their sales quota,

17:13 + 3\\=17:16

So, Option 'A' is correct.

Please mark as Brainliest!!

3 0
3 years ago
Does the table describe x as a function of y?
kicyunya [14]

Answer:

C. No, more than one output value x is assigned to the input y-value

Step-by-step explanation:

Given

х      у

-3    -2

3     6

0      7

1       7

2      4

3     - 1

Required

State if the table shows x as a function of y

x being a function of y means

x = f(y)

i.e. x represents the output while y represents the input of the function

Note that each value of y (input) must be assigned to separate values of x (output) for a function to be established

Having said;

Next step: We have to examine the x and y column

In the y column, the value 7 occurred twice (as shown below)

<em>х      у </em>

<em>0      7 </em>

<em>1       7 </em>

<em />

This implies that;

Input 7 gives output of 0 and 1.

<em>Hence, this is not a function.</em>

<em>Option C answers the question.</em>

7 0
3 years ago
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