Answer:
2.63905733
Step-by-step explanation:
Sorry I didn't round it
Formula
The expansion of the given expressions are; 4x² - 5x - 5; 2x² - 13x + 15; -2x² - 5x + 3; 3x² + 6x - 1
<h3>How to simplify Quadratic equations?</h3>
A) x(x - 5) + 3x² - 5
Expanding this gives us;
x² - 5x + 3x² - 5
⇒ 4x² - 5x - 5
B) (2x - 3)(x - 5)
Expanding the function gives;
⇒ (2x² - 3x - 10x + 15)
⇒ 2x² - 13x + 15
C) -2x(x + 3) + x + 3
⇒ -2x² - 6x + x + 3
⇒ -2x² - 5x + 3
D) 3(x + 1)² - 4
⇒ 3(x² + 2x + 1) - 4
⇒ 3x² + 6x + 3 - 4
⇒ 3x² + 6x - 1
Read more about Quadratic Equations at; brainly.com/question/1214333
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Answer:
Seat belts have been keeping us more safe than without them. They have been keeping us safe and preventing us from the major effects of a car crash. Of course people die but people get a little less of the damage like your head banging into the steering wheel or flying out the front window from the back image. For some smart cars, when it stops it holds the seat belt back from moving in order to protect you.
I really hope this helped you, if so then please mark brainliest.
Answer:
6(3 - 2h)
Step-by-step explanation:
18 - 12h (Both of them are divisible from 6 as it's the GCF)
6(3 - 2h)
the answer is 0.921.
Apply the trig identity: cos (a + b) = cos a.cos b - sin a.sin b
<span><span>cos<span>(75)</span></span>=<span>cos<span>(30+45)</span></span>=<span>cos30</span>⋅<span>cos45</span>−<span>sin30</span>⋅<span>sin45</span><span>=
0.921
</span></span>