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Nostrana [21]
3 years ago
15

2.3 • (–1.2) = A. –3.5 B. –2.76 C. 2.76 D. 3.5

Mathematics
2 answers:
grigory [225]3 years ago
6 0
The product is going to be negative.
2.3*1.2=2.76
-2.76; B
Anuta_ua [19.1K]3 years ago
6 0
B. -2.76 is your answer

hope this helps
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kotykmax [81]
1) For a quadratic equation, we'll have two answers typically. We're looking for two numbers that when multiplied give -64, and when added give -12. This is a bit of trial and error, but you go about it by systematically factoring -64 in all possible combinations: 64=-2*32=2*-32=-4*16=4*-16=-8*8. Of these, I can 'see' that I can make -12 with 4 and -16. So the factorization of the equation becomes:

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Answers B and D are correct.

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3 0
3 years ago
Find an obtuse angle whose sine is<br> a) 0.25<br> b) 0.75<br> c) 0.875<br> d) 0.3465
swat32

Answer:

a) 165.52 degrees.

b)  131.41 degrees.

c)  118.96 degrees.

d)  159.73 degrees.

Step-by-step explanation:

The sine of an obtuse angle is positive as it is in the second quadrant.

a) Using a calculate the angle whose sine ( arcsin) is 0.25  = 14.478 degrees

so the obtuse angle  = 180 - 14.478 = 165.52 degrees to nearest hundredth

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3 years ago
I need help please! I’ll give brainliest, thank you!
Alex777 [14]
A) domain: [ -5 5 ] range: [ -10 -2 ]
b) y intercept: -2 x intercept: -2 2
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4 0
3 years ago
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