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borishaifa [10]
3 years ago
15

Factor completely.4x^2 - 1​

Mathematics
2 answers:
Free_Kalibri [48]3 years ago
8 0

Answer:(2x+1) (2x-1)

Step-by-step explanation:a^2-b^2=(a-b) where a=2x and b=1

ASHA 777 [7]3 years ago
5 0
I think that’s right

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Amiraneli [1.4K]

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7 0
3 years ago
Ms. Jones baked 25 cookies. 4 fifths of the cookies were oatmeal. How many oatmeal cookies did Ms. Jones bake?
Dahasolnce [82]

Hi there!

20 outmeal cookies..

<u><em>Convert fraction into number term:</em></u>

<u><em /></u>\frac{4}{5}=\frac{20}{25}=20<u><em /></u>

Therefore, there would be 20 oatmeal cookies.

6 0
3 years ago
Given x= 5+ ✓16<br>name all possible values.<br>a.) -11<br>b.) 1<br>c.) 9<br>d.) 21
cestrela7 [59]
The only correct answer is C.) 9

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8 0
4 years ago
ACEG is a paralellogram. BKD, HJF and CKJG are straight lines. Find the values of x and y​
Genrish500 [490]

Answer:

\boxed{\mathrm{x=53\° \: \: \: y=33\°}}

Step-by-step explanation:

Apply these rules to solve:

• Angles on a straight line add up to 180 degrees.

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• Opposite angles in a parallelogram are equal.

• Angles in a quadrilateral add up to 360 degrees.

7 0
3 years ago
If the coefficient of determination for a data set is 0.75 and the SSE for the data set is 11 what is the SST for the data set?
jenyasd209 [6]

B 44

Hope it helps! :D

3 0
4 years ago
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