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Agata [3.3K]
3 years ago
5

Select all the correct answers.

Mathematics
2 answers:
Liula [17]3 years ago
8 0
It is convenient to have a calculator that effortlessly converts mixed numbers and times to decimal values. The average speeds in miles per hour of the participants are ...
   Adam 37.5
   Allen  36.75
   Nigel  38.0
   Owen 36.75
   William  37.5

Then drivers progressing at the same pace are ...
   C. Adam and William (both 37.5 mph)
   D. Allen and Owen (both 36.75 mph)
bezimeni [28]3 years ago
7 0
For me the answers were B D E and F 

Careful though 
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Which zero pair could be added to the function f(x)=x^2+12x+6 so that the function can be written in vertex form?
andrew11 [14]
<span>f(x) = x</span>² <span>+ 12x + 6  </span>→ y = x² + 12x + 6<span>

Let us convert the standard form into vertex form.

1) Complete the squares. Isolate x</span>² and x terms.
<span>y - 6 = x</span>² + 12x
<span>
2) Create the perfect square trinomial. Whatever number is added on one side must also be added on the other side. 

y - 6 + 36 = x</span>² + 12x + 36<span>
y + 30 = (x + 6)</span>²
<span>y = (x + 6)</span>² - 30  ← Vertex form
<span>
To check:

y = (x + 6) (x + 6) - 30
y = x</span>² + 6x + 6x + 36 - 30
<span>y = x</span>² + 12x + 6<span>

The zero that could be added to the given function is 36, -36</span>
4 0
3 years ago
A set of magical wand prices are normally distributed with a mean of 50 dollars and a standard deviation of 4 dollars. A blackth
Anna11 [10]

Complete Question

A set of magical wand prices are normally distributed with a mean of 50 dollars and a standard deviation of 4 dollars. A blackthorn wand has a price of 45.20. What proportion of wand prices are lower than the price of the blackthorn wand? You may round your answer to four decimal places

Answer:

0.1151

Step-by-step explanation:

We solve using z score formula

z = (x-μ)/σ, where

x is the raw score = $45.20

μ is the population mean = $50

σ is the population standard deviation = $4

We are solving for x < 45.20

Hence:

z = 45.20 - 50/4

z = -1.2

Probability value from Z-Table:

P(x<45.20) = 0.11507

Approximately to 4 decimal places = 0.1151

Therefore, the proportion of wand prices that are lower than the price of the blackthorn wand is 0.1151

8 0
3 years ago
Drag the tiles to the correct boxes to complete the pairs.
levacccp [35]
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3 years ago
Tavon has a gift card for $45 that loses $2 for each​ 30-day period it is not used. He has another gift card for $35 that loses
leva [86]

Answer:

1

Step-by-step explanation:

7 0
3 years ago
1. True or False: Please answer the questions in the boxes provided.
vivado [14]

Answer:

trufe

Step-by-step explanation:

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