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yuradex [85]
2 years ago
11

Tom the painter is painting window frames on a house. He knows that the angle his ladder should make with the ground should be b

etween 55° and 35° in order to be safe. Tom's ladder is 8m and he wishes to paint a window frame 6.3m above the ground.
Is Tom's ladder safe to use?
Mathematics
1 answer:
Anna11 [10]2 years ago
7 0

Answer:

Tom should use a ladder that is smaller or at the the same height of the window frame. Here it says that he is using a ladder that is taller than the window frame, and this can be very uncomfortable for the person who is using the ladder, so it would be recommendable for Tom to use a smaller ladder, probably a ladder that is only a few inches smaller or taller than the window frame. Using a ladder that is like this should be safe to use.

Step-by-step explanation:

Hope this helps =)

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A road bike has a wheel diameter of 622 mm. What is the circumference of the wheel? Use 3.14 for pi
Ghella [55]

Answer:

Circumference ≅ 195 mm

Step-by-step explanation:

The circumference of a circle is equal to: 2*\pi *radius

Since Diameter = 2*radius we can replace that in the circumference equation giving us:

Circumference = \pi *Diameter

We know Diameter = 622 mm and pi = 3.14 so:

Circumference = \pi *Diameter = 3.14 * 622 mm = 195.308 mm

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3 years ago
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A system of linear equations is given by the tables.
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Answer:

2

-1

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5 0
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The factor (x + 2) occurs in the numerator and denominator. There will be a hole at x = 2.
navik [9.2K]

Answer:

false

Step-by-step explanation:

it suppose to be -2 if you equate it to Zero

6 0
3 years ago
Are all triangles similar
laila [671]
No. There are 3 types of triangles.

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6 0
3 years ago
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Which of the following are incorrect expressions for slope?
vfiekz [6]

Answer:

Option B and C are correct.

\frac{x_2-x_1}{y_2-y_1}

\frac{run}{rise} are the expression incorrect for slope

Step-by-step explanation:

Slope is defined as the change in the dependent variable  relative to the change in the dependent variable

or the ratio of the horizontal changes to vertical changes between any two points on the graph of the line.

The vertical changes between any two points is rise

The horizontal changes between any two points is run.

Formula for slope is given by:

For any two points (x_1, y_1) and (x_2, y_2)

then slope is:

\text{Slope} =\frac{rise}{run}= \frac{y_2-y_1}{x_2-x_1}

or we can write this as:

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Therefore, the expression which are incorrect for slope  are;

\frac{x_2-x_1}{y_2-y_1}

\frac{run}{rise}

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3 years ago
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