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Lemur [1.5K]
3 years ago
9

Show ur work idc if ur answer is wrong but i need to copy work

Mathematics
1 answer:
Yuliya22 [10]3 years ago
8 0
Gxgdhehshwhshwhebhsjshebdhdhebdhdhebehshejejej
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The speed of sound in air is 340 m/s. How far , in meters, would a sound of wave travel on 7 seconds?​
Rasek [7]

Answer:

2 380m

Step-by-step explanation:

very simple just multiply 7×340

4 0
2 years ago
Define acute triangle. A. A triangle whose angles each measure less than 90o B. A triangle with one interior angle that measures
Juli2301 [7.4K]
(A) a triangle whose angles each measure less than 90°
5 0
3 years ago
Find the surface area of a cylinder with a height of 7 m and a base radius of 6 m.
weqwewe [10]

Answer:

489.84 m²

Step-by-step explanation:

Area of one 2d circle: πr² ⇒ π6² ⇒ 36π ≈ 113.04 (using 3.14 for pi)

Area of both 2d circles: 113.04 + 113.04 =226.08 m²

Now we have to find the width of the rectangle, which is equal to the circumference of either circle:

Width of rectangle: 2πr ⇒ 2π6 = 12π ≈ 37.68 (using 3.14 for pi)

We can find the area of the rectangle now, since the length was given

Area of rectangle: 37.68· 7= 263.76 m²

Surface Area: 263.76+226.08= 489.84m²

Hopefully this helps!

6 0
3 years ago
I need help right now this is urgent
Nat2105 [25]
The answer should be 188
7 0
3 years ago
Find the exact area of a circle with a dimeter of 5 yards. Use 3.14 for pi
kenny6666 [7]

Answer:

A = 6.25(pi)

A ~ 19.63495

Step-by-step explanation:

The formula for finding the area of a circle is;

A = (pi)r^2

Where (A) represents the area of the circle, (pi) represents the value (3.1415...) and (r) represents the radius of the circle. As per its definition, the diameter is the largest cord or line segment that can be drawn through a circle, the diameter always passes through the center of a circle. The radius ( a line segment that can be drawn from the center of the circle to any side of the circle) is always half of the diameter.

This means that the radius for the given circle is (2.5), since (5÷2=2.5)

Substitute these values into the equation and solve for the area of the circle.

A = (pi)r^2\\\\A = (pi)(2.5)^2\\\\A = (pi)6.25\\

A ~ 19.63495

7 0
3 years ago
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