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Alex777 [14]
3 years ago
5

You are going to use an incline plane to lift a heavy object to the top of a shelving unit with a height of 5 ft. The base of th

e incline plane is 16 ft from the shelving unit. What is the length of the incline​ plane?
Mathematics
1 answer:
Verdich [7]3 years ago
3 0

Answer:

16.8 ft

Step-by-step explanation:

use pythagorean formula

16^{2}+5^{2}  =x^{2}, you are solving for the hypotenuse

x=16.8 ft

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What is 4 3/4 + -5/8
Alona [7]
I think is 12 1/7 I'm not sure it's correct but I think it is
4 0
3 years ago
A quadrilateral ABCD has the area 10 square feet. After a dilation with a scale factor of 3, find the area of quadrilateral A'B'
gtnhenbr [62]

10 x 3^2

= 10 x 9

= 90

5 0
3 years ago
Five times the sum of a number and 3 is 15
lara [203]

Answer:

the answer is 30 ok my friend your welcome

Step-by-step explanation:

3 0
3 years ago
The number y of hits a new website receives each month can be modeled by y = 4070ekt, where t represents the number of months th
makvit [3.9K]

Answer:

<u><em>k = 0.2645</em></u>

Step-by-step explanation:

Given model:

y = 4070 e^{kt}

y = no. of hits website received = 9000 (in 3rd month)

t= no. of months website has been operational = 3

put in the above equation:

9000 = 4070  e^{3k}

\frac{9000}{4070} = e^{3k}

\frac{900}{407}=e^{3k}

<u><em>Taking natural logarithm on both sides, we get:</em></u>

ln\frac{900}{407}=ln(e^{3k})

ln\frac{900}{407}= 3k ln<em>e</em>

ln<em>e</em>=1

ln \frac{900}{407}= 3k

or k = \frac{1}{3}ln\frac{900}{(407)}

k =\frac{1}{3}(0.7936)

<em>k = 0.2645</em>

<em />

7 0
3 years ago
20 POINTS! You are planning to use a ceramic tile design in your new bathroom. The tiles are equilateral triangles. You decide t
Margarita [4]

Answer:

<em>210.33 cm^2</em>

<em></em>

Step-by-step explanation:

We know that 6 equilateral triangles makes one hexagon.

Also, an equilateral triangle has all its sides equal.

If the tile of each side of the triangular tile measure 9 cm, then the height of the triangular tiles can be gotten using Pythagoras's Theorem.

The triangle formed by each tile can be split along its height, into two right angle triangles with base (adjacent) 4.5 cm and slant side (hypotenuse) of 9 cm. The height  (opposite) is calculated as,

From Pythagoras's theorem,

hyp^{2} = adj^{2} + opp^{2}

substituting, we have

9^{2} = 4.5^{2} + opp^{2}

81 = 20.25 + opp^{2}

opp^{2} = 81 - 20.25 = 60.75

opp = \sqrt{60.75} = 7.79 cm  this is the height of the right angle triangle, and also the height of the equilateral triangular tiles.

The area of a triangle = \frac{1}{2} bh

where b is the base = 9 cm

h is the height = 7.79 cm

substituting, we have

area = \frac{1}{2} x 9 x 7.79 = 35.055 cm^2

Area of the hexagon that will be formed = 6 x area of the triangular tiles

==> 6 x 35.055 cm^2 = <em>210.33 cm^2</em>

7 0
3 years ago
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