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skad [1K]
3 years ago
6

Is (-4x+9) squared a perfect square

Mathematics
1 answer:
kaheart [24]3 years ago
5 0

Answer:

+ 6x + 9 ...so x2 + 6x + 9 is a perfect square trinomial. ... The first term, 16x2, is the square of 4x, and the last term, 36, is the square of 6. (4x)2 – 48x + 62.

Step-by-step explanation:

You might be interested in
The average low temperature by month in Nashville is represented by the function
malfutka [58]

Answer:

<h2>33</h2>

Step-by-step explanation:

Given the average low temperature by month in Nashville is represented by the function  f(x)=-1.4x² + 19x +1.7, where x is the month, the average rate of change is expressed as d[f(x)]/dx = 2(1.4x) + 19

d[f(x)]/dx  = 2.8x + 19

Since the number of months between March and August is 5 months and x is in months, hence we will substitute x = 5 into the resulting function to get  the average rate of change from March to  August as shown;

d[f(x)]/dx  at x = 5

= 2.8(5)+ 19

= 14 + 19

= 33

<em>Hence the average rate of change from March to August is 33</em>

4 0
3 years ago
Caitlin went to the store to buy school clothes .She had a store credit from from a previous return in the amount of $39.58 if s
charle [14.2K]

Answer:

each shirt costs 22.95

Step-by-step explanation:

39.58 + 52.22 = 91.80

91.80/4= $22.95 each

8 0
3 years ago
A roll of wire has 51 inches of wire. If each bracelet requires 7.2 inches of wire, estimate the number of bracelets that can be
sergeinik [125]

Answer:

7

Step-by-step explanation:

51 ÷ 7.2 is about 7.08 continued but you can't make .08 of a braclet so it's just 7

8 0
3 years ago
How many grams are 7.00 x 1022 molecules of NaOH?
olya-2409 [2.1K]

Answer:

46.5

explanation

6.022*10^23 molecules=40g.

7.00*10^23=40*7.00*10^23/6.022*10^23 g =46.5 g

8 0
3 years ago
Three-fourths was subtracted from a number, and then 5 1/4 was added to the result. The sum was -7.
Alika [10]

Answer:

1 1/4 is the answer

Step-by-step explanation:

Hope this helps :))

6 0
3 years ago
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