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Murljashka [212]
3 years ago
15

PLEASEE HELP.!! ILL GIVE BRAINLIEST.!! *EXTRA POINTS* DONT SKIP:((

Mathematics
1 answer:
Alika [10]3 years ago
3 0

Answer:

ac - ad + bc - bd - 9e

Step-by-step explanation:

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What is the slope of y = -2x and what does this mean?
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Answer:

-2 is the slope

Step-by-step explanation:

6 0
4 years ago
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Pi/24 is the solution for 4cos2 (4x) - 3 = 0<br><br> True or false
inessss [21]

Answer:

True.

Step-by-step explanation:

Given,

4cos2 (4x) - 3 = 0

Now, 4π/24 = π/6

Or, cos π/6 = √3/2

Or, cos^2 π/6 = 3/4

Or, 4 cos^2 π/6 = 3

Now, Left Hand Side= 4cos2 (4x) - 3

                                  = 3-3 =0 = Right Hand Side (Proved)

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3 years ago
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Find the surface area of a cylinder with the following dimensions. Use 3. 14 for $. Round your answer to the nearest
kupik [55]

Answer:

b

Step-by-step explanation:

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slant surface area=2πr*h=11.4×3.14×4.4=157.5024 cm^2

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7 0
3 years ago
If sin square theta = 0.75, then cos =
sergeinik [125]

Answer:

\cos\theta=\pm0.5

Step-by-step explanation:

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Using trigonometric relations for sums and differences of squares of the ratios.

We know:

\sin^2\theta+\cos^2\theta =1

Plugging in  \sin^2\theta=0.75 in the above relation.

0.75+\cos^2\theta =1

Subtracting both sides by 0.75.

0.75+\cos^2\theta-0.75 =1-0.75

\cos^2\theta =0.25

Taking square root both sides.

\sqrt{\cos^2\theta} =\sqrt{0.25}

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6 0
3 years ago
A cylindrical water container has a diameter of 4cm and a height of 36mm. what is the total surface area of the water container
Mumz [18]

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477.52cm^2

Step-by-step explanation:

Brainliest or I will report you

6 0
3 years ago
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