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OverLord2011 [107]
3 years ago
6

Solve for x: 4 − (x + 2) −7 x −9

Mathematics
2 answers:
olga2289 [7]3 years ago
8 0

Answer:

wjdjdjdn w w. r. fidjsns

poizon [28]3 years ago
7 0

Answer:

−8x−7

-------------------------

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13 Solve the inequality n+7&lt;5n-8<br>​
Papessa [141]

Answer:

3.75 < n

Step-by-step explanation:

n + 7 < 5n - 8

Add 8 to both sides

n + 7 + 8 < 5n

n  + 15 < 5n

Subtract 'n' from both sides

15 < 5n - n

15 < 4n

Divide both sides by 4

\frac{15}{4} < n

3.75 < n

3 0
3 years ago
Find the derivative of y=sin^(2)(x)cos^(2)(x)
wariber [46]
sin^{2}x \ cos^{2} x= \frac{1}{2} (1-cos2x) \times \frac{1}{2} (1+cos2x) \\ = \frac{1}{4} (1- cos^{2} 2x) \\ = \frac{1}{4} ( sin^{2} 2x +cos^{2} 2x- cos^{2} 2x) \\ = \frac{1}{4} ( sin^{2} 2x) \\ = \frac{1}{4} ( \frac{1}{2} (1-cos2(2x))) \\ = \frac{1}{8} (1-cos4x) \\  \frac{d}{dx} (sin^{2}x \ cos^{2} x)= \frac{1}{8}  \frac{d}{dx} (1-cos4x) \\ = \frac{1}{8} [-4(-sin4x) \\  \frac{1}{2} sin4x
5 0
3 years ago
Which statement is logically equivalent to the following conditional statement?
Naddik [55]
<span>The best answer is:
If it is a rectangle, then it does not have three sides.
</span>This statement is also known as the equivalent contra-positive.
7 0
3 years ago
Use the digits 2, 3, and 5 to create a fraction and a whole number with a product greater than 2
kupik [55]
The fractions which cannbe formed are: 2/3, 3/2, 2/5, 5/2, 3/5 and 5/3.
Now, we find the products with the third number:
2/3*5= 10/3 = 3.33 > 2
3/2*5 = 15 >2= 7.5 > 2
2/5*3= 6/5 (rejected)
5/2*3 = 15/2 > 2
3/5*2= 6/5 (rejected)
5/3*2 = 15/2 = 7.5> 2
5 0
3 years ago
Read 2 more answers
I don't know who needs to hear this but I wanted to hopefully reach out to someone.
Alex787 [66]

Answer:

aw thank you sm <3 !!! needed to hear that

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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