PLEASE HELP!!! I WILL RATE BRAINLIEST TO THE FASTEST AND CORRECT ANSWER!!!
1 answer:
Not easy:
- 4 < x^4 + 4x^2 ---> 0 < x^4+4x^2+4 = (x^2+2)^2, so it is always positive. Always satisfied. Curious ...
Now the other one:
x^4+4x^2<21 --> x^4+4x^2-21 < 0 --> (x^2+2)^2 - 25 < 0
(x^2+2)^2<25 ->>> x^2+2 < 5 ---> x^2 <3,
So -sqrt(3)<x<sqrt(3) is the answer! Brainliest?
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Answer:
i cant see the pic
Step-by-step explanation:
Answeryes the answer would be 12 you are correct:
Step-by-step explanation:
because your super smart
2 ramps are rectangles so (width of 26 times length of 30) x 2 = 1560 sq in
The top is 24 by 30 = 720 sq in
Add the area of the ramps to the area of the top to get the answer.
Solution
Z= 143
X= 90
Y= 90
Sin θ =
If θ = 51° ; opp = QR ; hyp = 17 cm
Then sin 51° =
⇒ QR = (sin 51°) (17 cm)
= 13.21 cm
∴ the answer is OPTION C
