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vodomira [7]
3 years ago
5

E U F {2,4,6,8,} true or false

Mathematics
1 answer:
lesya [120]3 years ago
4 0
Tbh i think its true not 100%
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wanting some extra help with factoring while knowing what method it would be like gcf or grouping etc
Ksju [112]

d) You have a <u>difference of squares</u>:

49y² - 9 = (7y)² - 3²

Recall the identity,

a² - b² = (a - b) (a + b)

So,

49y² - 9 = (7y - 3) (7y + 3)

e) Pull out the common factor 3 from each term:

3x² - 3x - 90 = 3 (x² - x - 30)

Now use the <u>sum-product method</u>. Notice that we can write 30 = 5 • 6, and 5 - 6 = 1, so

3x² - 3x - 90 = 3 (x + 5) (x - 6)

f) Same as in (e), use the <u>sum-product method</u>. Notice that 42 = 7 • 6, and -7 - 6 = -13, so

x² - 13x + 42 = (x - 7) (x - 6)

8 0
2 years ago
Read 2 more answers
If a coin is flipped 20 times and a head comes up 7 times, what is the relative frequency of a head coming up?
Tju [1.3M]
Relative frequency is the absolute frequency (i.e. the number of times of the wanted result) divided by the total  number of events.

In this case you have to calculate: the number of heads that came up divided by the number of times the coin was flipped.

Number of times the coin was flipped: 20
Numbef of times head came up: 7

Relative frequency: 7 / 20 = 0.35, which is the option B.
7 0
3 years ago
Read 2 more answers
Please help and show work
Bogdan [553]
The answer should be X= 3.60m
3 0
3 years ago
A desk drawer contains the different-colored markers listed below.
Maksim231197 [3]

Answer:

<h2>total no of markers :36</h2>

in first condition

<h2>no of blue marksers :4</h2>

so probability:

\frac{4}{36}  =  \frac{1}{9}

same goes to the second condition

<h2><em><u>hope</u></em><em><u> it</u></em><em><u> helps</u></em><em><u> you</u></em><em><u><</u></em><em><u>3</u></em></h2>
4 0
2 years ago
Bonami High School has 82 juniors at its school. There are 29 students enrolled in Spanish class and 31 enrolled in history. The
Softa [21]

Answer:

73%

Step-by-step explanation:

6 0
3 years ago
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