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Reptile [31]
3 years ago
15

To factor 4x2 - 25, you can first rewrite the expression as:

Mathematics
1 answer:
ikadub [295]3 years ago
6 0
None of above i think not sure
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What is the value of x to the nearest tenth?
Alex_Xolod [135]
Hi there!

In order to solve for x, we'll need to use a trigonometry ratio. In this case, we'll use tangent, which is opposite over adjacent.

Here is our equation:
tan(37)/1 = x/2.1

Cross-Multiply:
x = tan(37) * 2.1

Solve:
x = 1.8 (rounded to the nearest tenth)

Hope this helps!! :)
If there's anything else that I can help you with, please let me know!
7 0
4 years ago
Please help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
kirill [66]

Answer:

sin(x) = -sqrt2/2

tan(x) = -1

Step-by-step explanation:

Because it is between 270 and 360, sin is negative, so it is -sqrt2/2.

tan(x) is sin(x)/cos(x), so it is just -1.

6 0
3 years ago
I need help asap questions 12-17 please.
user100 [1]

Answer:

12. -5 and 4

13. -2 and -1

14. -5 and 6

15. -4 and -3

16. -2 and 8

17. -3 and 8

Step-by-step explanation:

4 0
4 years ago
There are 13 girls and 12 boys in the class. What is the ratio of boys to total kids in the class?
Nataliya [291]

12/25 is the answer. hope that helped

3 0
3 years ago
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I pretty sure the answer is 3.2 hours. I'm not completely sure though....
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4 years ago
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