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Aloiza [94]
4 years ago
5

Classify each as an expression or an equation.

Mathematics
1 answer:
fenix001 [56]4 years ago
6 0

Answer:

1. equation

2. equation

3. expression

4. expression

explanation is that an equation has an equal sign and an expression doesnt .  

5. equation

Step-by-step explanation:

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Which of the following numbers is the least?
svlad2 [7]
0.67895 because they are all the exact same
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3 years ago
1. Rodrigo has a ladder that is 13 ft long. The ladder is leaned against a vertical wall. The top of the ladder is 10.8 ft above
PtichkaEL [24]

Answer:

As per the given condition:  Rodrigo has a ladder that is 13 ft long. The ladder is leaned against a vertical wall. The top of the ladder is 10.8 ft above the ground.

The Orientation of the ladder with the wall forms a right triangle.  

The ladder length is the hypotenuse of the triangle,

the distance between the ladder at ground level and the base of the wall is the horizontal leg of the triangle,

and the height of the ladder is the vertical leg of the triangle.

⇒ Height of the ladder = 10.8 ft and hypotenuse = 13 ft

Using sine ratio formula;

\sin \theta = \frac{\text{Opposite side}}{\text{Hypotenuse side}}

Opposite side = height of the ladder = 10.8 ft and

Hypotenuse side = 13 ft.

then;

\sin \theta = \frac{10.8}{13} =0.830769230769

or

\theta = \sin^{-1}(0.830769230769)

Simplify:

\theta = 56.2^{\circ} (nearest to tenth place)

Since, it is given that the angle the ladder makes with the ground needs to be 60 degree or less for safety purposes.

(a)

Yes, this ladder in a safe position.

as \theta = 56.2^{\circ} < 60^{\circ}

(b)

You can see the diagram as shown below in the attachment.





8 0
3 years ago
Combine the like terms to create an equivalent expression:{-5r+8r+5}−5r+8r+5
Feliz [49]

Answer:

u add al of em up then u subtract to get 4

Step-by-step explanation:

7 0
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Answer:

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Step-by-step explanation:

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2 years ago
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The volume of a cylinder is 36 pie cubic units and its height is 4 units. find its lateral area.
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V=hpir^2
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h=4
LA=2hpir
find r then find lateral area

36pi=4pir^2
divide by 4pi
9=r^2
sqrt both sides
3=r

LA=2hpir
LA=2*4*pi*3
LA=8*pi*3
LA=24pi

lateral area=24 pi squarea units
5 0
3 years ago
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