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lara31 [8.8K]
3 years ago
15

IM BEGGING FOR HELP! I AM SO CONFUSED I WILL AWARD YOU BRAINLIEST ANSWER IF YOU ANSWER THIS QUESTION PLEASE!!!! SOS!! (P.S. sorr

y for the dramatics i just feel like its the only way to get someones attention to answer your question you know?) An elevator travels vertically in a building that has 32 floors, each 11 feet tall. The height h above the first floor after t seconds is given by h=297-4.4t. How long will it take for the elevator to reach the second floor?
Mathematics
2 answers:
umka2103 [35]3 years ago
8 0
32 floors
32*11=total feet from ground to top
h=297-4.4t
set 11=297-4.4t to find the time it will take since each floor is 11 ft high
Stella [2.4K]3 years ago
8 0
Here, Function = h = 297 - 4.4t
Substitute for h = 2, 
2 = 297 - 4.4t
-4.4t = 2 - 297
t = -295/-4.4
t = 67.05 s

In short, Your Answer would be 67.05 seconds

Hope this helps!
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Find the variable. m angle BDJ=7y+2 , m angle JDR=2y+7
Anna35 [415]

The value of the variable y is 9 given that BDJ=7y+2  and angle JDR=2y+7

From the attached diagram, we can see that the<u> sum of m<BDJ and m<JDR is complementary</u> (i.e. sums up to 90degrees)

Given the following

m<BDJ = 7y + 2

m<JDR = 2y + 7

Summing up to 90

m<BDJ + m<JDR = 90

7y + 2 + 2y + 7 = 90

7y+2y+2+7 = 90

9y + 9 = 90

9y = 90-9

9y = 81

y = 81/9

y = 9

Hence the value of the variable y is 9

Learn more here: brainly.com/question/17247176

3 0
3 years ago
A road is 450 metres long . It takes a woman 5 minutes to walk along the road . Work out the average speed of the woman . Give y
Masja [62]
Theres 60 seconds in a minute. If it takes her 5 minutes, multiply 60 by 5. you will get 300. then all you will do is divide the meters by 300 seconds. you will get the answer of 1.5 metres per second.
6 0
2 years ago
A square ceiling has an area of 360 square feet. Alex wants to put molding around the entire perimeter of the ceiling. Approxima
Blababa [14]

Answer:

Option C is correct

76 feet

Step-by-step explanation:

Area of square(A) is given by:

A =s^2

where, s is the side of the square.

As per the statement:

A square ceiling has an area of 360 square feet.

⇒A = 360 square feet.

then;

s^2 = 360

⇒s = \sqrt{360} =18.973666

Perimeter(P) of square is given by:

P = 4s

then;

P = 4 \cdot 18.973666 = 75.894664 \approx 76 ft

Therefore, 76 feet molding does he need.

7 0
3 years ago
I don’t know what the answer to this question is , help
ipn [44]

Answer:

(4, 0)

Step-by-step explanation:

given the 2 equations

y = x - 4 → (1)

- 4x - 6y = - 16 → (2)

substitute y = x - 4 into (2)

- 4x - 6(x - 4) = - 16

- 4x - 6x + 24 = - 16

- 10x + 24 = - 16 ( subtract 24 from both sides )

- 10x = - 40 ( divide both sides by - 10 )

x = 4

substitute x = 4 into (1) for corresponding value of y

y = 4 - 4 = 0

solution is (4, 0)

3 0
3 years ago
Kathy is a repair technician for a phone company. Each week, she receives a batch of phones that need repairs. The number of pho
Semenov [28]

Answer:

What 108 represents here is that the total number of phones she has to fix each week is 108 phones

Step-by-step explanation:

The linear equation is

P = 108-23d

compare this with the general form;

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we have;

P = -23d + 108

We can see that 108 represents the y-intercept in this case

The x-value at the y-intercept is 0

So what this mean is that the number of phones she has to fix each week is 108

7 0
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