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garik1379 [7]
2 years ago
13

What is the value of c such that x^2+14x+c is a perfect-square trinomial?

Mathematics
1 answer:
polet [3.4K]2 years ago
4 0

Answer: 49

Step-by-step explanation:

a=1 ,b=14, c=?

b^2-4ac =0

(14)^2-4(1)(c)=0

196-4c=0

196=4c

c=49

Check:

(x)^2+2(x)(7)+(7)^2

x^2+14x+49

(x+7)^2  

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The high temperature is forecast to be 5.4 F . What is this temperature in degrees Celsius ()?
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Answer:

-14c

Step-by-step explanation:

I’m using the actual values 1F = -17C so just times that by 5.4

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The temperature outside dropped 13 F in in 7 hours. The final temperature was -2 F. What was the starting temperature?
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the final temperature was -2 F, and that reflects a drop of 13 units, so


-2------0------------------------------------------------------+11.

8 0
3 years ago
Which measure of center would you use to describe a data set with no extreme values and no big gaps?
xxTIMURxx [149]

Answer:

The median

Step-by-step explanation:

The median always exists. The median does not have to be one of the data

3 0
3 years ago
Read 2 more answers
The box plots show the math scores of students in two different classes. Based on the box plots, which statement is correct?
Allisa [31]

Based on the box plots, the statement which is correct is that: A. The median score of Class A is greater than the median score of Class B.

<h3>What is a box and whisker plot?</h3>

In Mathematics, a box plot is also referred to as box and whisker plot and it can be defined as a type of chart that can be used to graphically or visually represent the five-number summary of a data set with respect to locality, skewness, and spread.

Additionally, the five-number summary of any box plot (box and whisker plot) include the following:

  1. Minimum
  2. First quartile
  3. Median
  4. Third quartile
  5. Maximum

By critically observing the box plot (box and whisker plot) which represent the math scores of students in in two different classes, we can reasonably and logically deduce the following median scores;

Median score of class A = 80

Median score of class B = 75

Therefore, a median score of 80 in Class A is greater than the median score of 75 in Class B.

Read more on box plots here: brainly.com/question/14277132

#SPJ1

6 0
11 months ago
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