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cupoosta [38]
4 years ago
10

A local park is adding a new 14 ft long slide to the playground. The vertical height of the slide is h. The distance from the bo

ttom of the stairs to the bottom of the slide needs to be 15 ft. Also, due to safety reasons, the slide must form a 30° angle with the ground, as shown belo
Mathematics
1 answer:
Luden [163]4 years ago
6 0
If a local park is adding a new 14 ft long slide to the playground, and the vertical height of the slide is H, then the correct answer to the following given statement or question above is 7 meters long.
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Find the surface area of each figure to the nearest tenth.
Stells [14]
For the cylinder on the left-hand-side,

\bf \textit{surface area of a cylinder}\\\\
S=2\pi r(h+r)\quad 
\begin{cases}
r=radius\\
h=height\\
------\\
h=10\\
r=5
\end{cases}\implies S=2\pi (5)(10+5)

now, for the triangular prism on the right-hand-side,

notice is really just 2 triangles and 3 rectangles, stacked  up to each other at the edges.

the triangles have a base of 4, and a height of 1.5.

the rectangle on the left and the one on the right is a 6x2.5 rectangle.

the rectangle at the bottom, is a 4x6 rectangle.

adding their areas, is the area of the prism,

\bf \stackrel{two~triangles}{2\left[\cfrac{1}{2}(4)(1.5)  \right]}+\stackrel{left-right~rectangles}{2(6\cdot 2.5)}+\stackrel{bottom~rectangle}{4\cdot 6}
\\\\\\
6~~+~~30~~+~~24
7 0
3 years ago
Pergunta 5 You need to fill a football with air to play with it. You know that your pump expels air at speed of 8.2 ft/s. The ne
ra1l [238]
The volume flow rate of the air being pumped into the football will be given by:
 Q=V*A
 Where
 V=Speed
 A=Area
 You know that your pump expels air at speed of 8.2 ft/s
 The area of The needle of your pump is
 A=pi*r^2=pi*((4.5/1000)*(3.28))^2=0.00068442 ft^2
 Finally
 Q=V*A=(8.2 ft/s)*(0.00068442ft^2)=0.005612243 ft^3/s
8 0
3 years ago
PLZ HELP MEEEEE!!! i suck at fractions umu
Reil [10]

Answer:

The area of the baseboard is 135\ m^2

Step-by-step explanation:

We have,

Length of the bed, l = 15 m

Width of the bed, b = 9/10 m

It is required to find the area of the baseboard. It is a shape of rectangle. The area of a rectangular shape is given by :

A=l\times b\\\\A=15\ m\times \dfrac{9}{10}\ m\\\\A=\dfrac{135}{10}\ m^2\\\\A=135\ m^2

So, the area of the baseboard is 135\ m^2

8 0
3 years ago
What the answer now now
Anton [14]

Answer:

The area of the triangle is 346.0\ mm^2

Step-by-step explanation:

Given

Triangle VWU

Required

Determine the Area of the Triangle

First, we'll solve for the third angle

Angles in a triangle when added equals 180;  So

36 + 24 +

60 +

Next is to determine the length of VW using Sine Law which goes thus

\frac{VW}{Sin24} = \frac{34}{Sin36} (Because 24 degrees is the angle opposite side VW)

Multiply both sides by Sin24

SIn24 * \frac{VW}{Sin24} = \frac{34}{Sin36} * Sin24

VW = \frac{34}{Sin36} * Sin24

VW = \frac{34}{0.5878} * 0.4067

VW = 23.5 mm (Approximated)

<em>At this stage, we have two known sides and two known angles;</em>

<em>The Area can be calculated as the 1/2 * the products of two sides * Sin of the angle between the two sides</em>

Considering VW and VU

VW = 23.5 (Calculated);

VU = 34 (Given)

The angle between these two sides is 120 (Calculated);

Hence;

Area = \frac{1}{2} * 23.5 * 34 * Sin120

Area = \frac{1}{2} * 23.5 * 34 * 0.8660

Area = \frac{1}{2} * 691.934

Area = 346.0 mm^2

<em>Hence, the area of the triangle is </em>346.0\ mm^2

4 0
3 years ago
Please help thanks :))))
stepan [7]

Answer:

-6

Step-by-step explanation:

1-7(1)=1-7

1-7=-6

You know anything times 1 stays the same there for you just subtract, since it's a positive 1 minus a negative 7 it goes backwards to -6

7 0
3 years ago
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