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xeze [42]
3 years ago
6

The area of a rectangular fountain is x2 + 9x + 20 square feet. A 5-foot walkway is built around the fountain. Find the dimensio

ns of the outside border of the walkway. The dimensions of the outside border of the walkway are _ feet and _ feet (fill in the _ s)

Mathematics
1 answer:
Leviafan [203]3 years ago
6 0

Answer:

So, the dimensions of the outside border of the walkway are (x + 14) feet (x + 15) feet.

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how long will it take a shelf fired from a cliff at an initial velocity of 800 metres per second at an angle of 30 degree below
Zina [86]

0.373 seconds. First, calculate the initial vertical velocity of the shell. 800sin(30) = 800*0.5 = 400 m/s Now the formula for the distance traveled is d = 400 m/s * T + 0.5A T^2 Substituting known values gives. 150 = 400 m/s * T + 0.5*9.80m/s^2 T^2 150 = 400 m/s * T + 4.9 m/s^2 T^2 Arrange as a quadratic formula 0 = 400 m/s * T + 4.9 m/s^2 T^2 - 150 4.9 m/s^2 T^2 + 400 m/s * T - 150 = 0 Now solve for T using the quadratic formula with a=4.9, b=400, and c=-150 The calculated value is 0.373 seconds. Is this value reasonable? Let's check. The initial downward velocity is 400 m/s. So 150/400 = 0.375 seconds. Since the actual time will be a bit less due to acceleration by gravity and since the total time is so short, there won't be much acceleration due to gravity, the value of 0.373 is quite reasonable.

6 0
3 years ago
Use the given property to complete the statement
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The answer will be  A because 3x=-3

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5 0
3 years ago
A construction company was contracted to build a cylindrical storage tank with a diameter of 48 feet and height of 25 feet. Just
Mrrafil [7]
V=hpir^2
d/2=r

so, at first, diameter is 48ft
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height is 25ft

so volume=25pi24^2 or 14400pi cubic feet

max of 9ft

if we want 9ft height
find r
hmm

14400pi=9pir^2
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2r=d
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8 0
3 years ago
Tran checked the time on his watch after he finished his daily run select the time that Tran finished running mark all that appl
Viefleur [7K]

Answer:

(a) and (b) are correct

Step-by-step explanation:

Given

See attachment for complete question

Required

Select the correct options

A clock is divided into two equal parts.

(1) 1 - 6

(2) 7 - 12

<em>When the hour hand is on (1), then the time is "after"</em>

<em>When the hour hand is on (2), then the time is "before"</em>

<em />

From the attached clock, we have:

(1) The hour hand on 9

(2) The minute hand 1 unit above 9 i.e. 46 minutes

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(2) implies that the minutes is (60 - 46) before 9 or 46 minutes after 8

In (1) and (2) above, we have two interpretations.

1: (60 - 46) minutes before 9

This gives:

14 minutes before 9

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insens350 [35]

Answer: -30

Step-by-step explanation:

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