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Ivan
3 years ago
8

Someone help me with ASAP plz f(x) = x2 - 4x

Mathematics
1 answer:
Rufina [12.5K]3 years ago
4 0

Answer:

whats the choices?

Step-by-step explanation:

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Simplify. cos^2[(pi/2) - x] + cos^2[(pi/2) - x] + cos^2x
Ipatiy [6.2K]

Numerator
<span><span>cos<span>(<span>π/2</span>−x)</span></span>=<span>cos<span>(<span>π/2</span>)</span></span><span>cosx</span>+<span>sin<span>(<span>π/2</span>)</span></span><span>sinx</span></span>

now <span><span>cos<span>(<span>π/2</span>)</span></span>=0 and <span>sin<span>(<span>π/2</span>)</span></span>=1</span>

simplifies to : 0 + sinx = sinx

Denominator

<span><span>sin<span>(<span>π/2</span>−x)</span></span>=<span>sin<span>(<span>π/2</span>)</span></span><span>cosx</span>+<span>cos<span>(<span>π/2</span>)</span></span><span>sinx</span></span>

simplifies to : cosx + 0 = cosx

<span>⇒<span><span>cos<span>(<span>π/2</span>−x)</span></span><span>sin<span>(<span>π/2</span>−x)</span></span></span>=<span><span>sinx/</span><span>cosx</span></span>=<span>tan<span>x</span></span></span>

5 0
3 years ago
The librarian purchased 22 copies of a best-selling book for $385.66.
kow [346]

Answer:

$17.53

Step-by-step explanation:

$385.66 divided by 22 equals the how much each book cost

5 0
3 years ago
Help asap ☺️☺️☺️☺️☺️☺️☺️
never [62]
Hey There!

80+70 is 150

180
-150
is 30 so 30 must be your answer

Hope This Helps!!!
3 0
3 years ago
Read 2 more answers
Can you guys help? Hopefully the last question of the day/night!
Anettt [7]

Answer and explain:

1st person: 70 % throws

70/100x80 = 56 out of 80 throws

2nd person: 60% throws

60/100x80 = 48 out of 80 throws

3rd person 50% throws

50/100x80 = 40 out of 80 throws

56+48+40/80x3 = 77/120​

One equation that gives the estimated number of free throws (all the 3 people) is 77 out of 120. The best player will make about 56 out of 80 free throws.

5 0
3 years ago
Read 2 more answers
Find the gradient of the line segment between the points (2,2) and (0,6).
Alexeev081 [22]

Answer:

slope-intercept formula ----->  Y2-Y1/X2-X1

Step-by-step explanation:

X1 = 2       X2= 0

Y1 = 2        Y2=6

6-2/0-2= -2

G= -2

5 0
3 years ago
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