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2 years ago

Please help me figure this out.

Mathematics

1 answer:

raketka [301]2 years ago

8 0

Answer:

See below

Step-by-step explanation:

See the attachment. I make a major assumption that angle y is a right angle. If that is not correct, ignore the answer.

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Write the equation of a sine function that has the following characteristics.

slava [35]

Answer:

$\displaystyle y = 7\sin(9\pi(x + {1}/{4}) )$

Step-by-step explanation:

we are given

Amplitude:7
Period:9π
Phrase shift:¼

remember that,

$\displaystyle y = A \sin(B(x + C) )+ D$

where A is the Amplitude

B is the Period

C is the Phase shift

D is the vertical shift

note that, since D isn't given we'll take it 0

altogether substitute:

$\displaystyle y = 7\sin(9\pi(x + {}^{1}/_{4}) )+ 0$

hence,

our equation is

$\displaystyle y = 7\sin(9\pi(x + {}^{1}/_{4}) )$

and we are done!

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3 years ago

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Which is bigger 0.07 or 0.005?

VMariaS [17]

0.07 is the larger number out of the two

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4 years ago

What is the perimeter of a square with 4 inch sides

notsponge [240]

Answer:

16 units

Step-by-step explanation:

We know a square is 4 sides, and perimeter is the sum of all sides.

4 + 4 + 4 + 4 = 16 units

we can do this in a more efficient way with:

4 x 4 =16 units

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3 years ago

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Given that these two triangles are similar, what is the measure of ∠A?

Andru [333]

The answer would be D)90 degrees

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Where r is the radius of the cylinder and h is the height of the cylinder.

AnnyKZ [126]

<h3>Given:-</h3>

radius = 7 inches
height = 9 inches

$\\ \\$

Surface area of cylinder

$\\ \\$

we know:-

$\bigstar \boxed{ \rm Surface \: Area \: of \: Cylinder=2\pi rh+2\pi {r}^{2} }$

$\\ \\$

So:-

⇢SA of cylinder=2πrh+2πr²

$\\$

⇢SA of cylinder = 2πr(h+r)

$\\$

⇢SA of cylinder = 2 × π × 7(7 + 9)

$\\$

⇢SA of cylinder = 2 × π × 7 (16)

$\\$

⇢SA of cylinder = 2 × π × 112

$\\$

⇢SA of cylinder = 2 × 112 × π

$\\$

⇢SA of cylinder = 224π inches ²

$\\$

.°. Surface Area of cylinder is 224π inches².

3 0

2 years ago