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Evgesh-ka [11]
2 years ago
11

When asked to factor the trinomial 4x^2 + 12x + 9, a student gives the answer (2x - 3)(2x - 3). What is one thing wrong with thi

s answer?
A. There is nothing wrong with the answer

B. The minus signs should be plus signs

C. 4 is also a factor of this trinomial

D. The factors are not simplified

Mathematics
2 answers:
defon2 years ago
8 0

Answer:

B.

(2x+3)(2x+3)

Step-by-step explanation:

Sedbober [7]2 years ago
4 0
The answer is d :) hope it helps
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A nutrition label states the item contains 48% of the daily recommended amount of vitamin B 12 rewrite this percent as a fractio
elixir [45]

Answer:

12/25

Step-by-step explanation:

48% = 48/100

48/100 simplified is 12/25

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3 years ago
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Carran is building a fence around his rectangular yard. The fence will cover the front and the 2 sides of the yard. The
dolphi86 [110]

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Answer:

  • sides: 12 feet
  • front: 28 feet

Step-by-step explanation:

Let x represent the length of one side of the yard. Then the width of the yard is 2x+4, and the perimeter is ...

  P = 2(L +W) . . . . . . . . . . formula for perimeter of a rectangle

  80 = 2(x + (2x+4)) . . . . . with values from the problem filled in

  40 = 3x +4 . . . . . . . . divide by 2, collect terms

  36 = 3x . . . . . . . . . subtract 4

  12 = x . . . . . . . . . divide by 3. This is the length of the side fence.

  2x +4 = 2(12) +4 = 28

The fence is 12 feet on the sides and 28 feet on the front. (Its total length is 52 feet.)

7 0
3 years ago
Bro what did I do?! Katie its always you that deletes my stuff isn't it-​
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Answer:

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3 0
3 years ago
PLEASE HELP AND SHOW WORK i'm very confused
noname [10]

Answer:

a. about 15.51 miles, rounded to 15.5 miles

b. about 31.02 miles, rounded to 31 miles

Step-by-step explanation:

Sunday Monday Tuesday Wednesday Thursday Friday Saturday

 10           20           40          80             160       320        640

 1280      2560        5120      10240       20480   40960    81920

81920/5280 = 15.51515151, rounded to the nearest tenth of a mile, 15.5 miles

Question b asks for how many miles in total has he ran. That means we have to add each of the values shown above and that equals to 163830 feet.

Divide that by 5280 and that equals 31.02 miles, rounded to the nearest tenth, 31 miles.

 

4 0
4 years ago
The life in hours of a battery is known to be approximately normally distributed, with standard deviation σ = 1.25 hours. A rand
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Answer

The answer and procedures of the exercise are attached in the following archives.

Step-by-step explanation:

You will find the procedures, formulas or necessary explanations in the archive attached below. If you have any question ask and I will aclare your doubts kindly.  

6 0
3 years ago
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