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serg [7]
3 years ago
12

17. The perimeter of rectangle RPQT is 134dm.

Mathematics
1 answer:
Rina8888 [55]3 years ago
6 0

Answer:

\sf 1092 \: dm^2

Refer to the attachment for explication of steps. :)

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David's money is three times Siti's money. Farid has RM 150 less than Siti. The total amount of their money is RM 2 000. How muc
mart [117]

Answer:

Siti's money = RM 430

David = RM 1,290

Farid = RM 280

Step-by-step explanation:

Let

Siti's money = x

David = 3x

Farid = x - 150

Total of their money = RM 2 000

x + 3x + (x - 150) = 2000

4x + x - 150 = 2000

5x = 2000 + 150

5x = 2,150

x = 2,150/5

x = RM 430

Siti's money = x

= RM 430

David = 3x

= 3(430)

= RM 1,290

Farid = x - 150

= 430 - 150

= RM 280

3 0
3 years ago
Which of the following is a radical equation?<br>a.x√3=13 <br>b.x+√3=13<br>c.√x+3=13 <br>d.x+3=√13​
Citrus2011 [14]

Answer:

this one: √x+3=13

6 0
3 years ago
Read 2 more answers
If fx= 6x-4 what is<br> when x=8
ra1l [238]

Answer:

44

Step-by-step explanation:

fx=6(8)-4

fx=48-4

fx=44

6 0
3 years ago
Read 2 more answers
A number minus 5 is between 2 and 8
vredina [299]

Answer:

either 7 or 8 but, 8 is most likely.

start with the numbers in the set 2,3,4,5,6,7,8

its supposed to be between 2 and 8

the only number that would work is 7 and 8 if you use 7 you get 2 and if you use 8 you get 3

5 0
3 years ago
Read 2 more answers
A rocket is launched from the top of a 55-foot cliff with an initial velocity of 138 ft/s.
melisa1 [442]

For this case we have that the equation that describes the height is:

h = -16t ^ 2 + vt + c

Where,

v: initial speed

c: initial height

Substituting values we have:

h = -16t ^ 2 + 138t + 55

Then, to find the time, we use the quadratic formula:

t =\frac{-b +/-\sqrt{b^2 - 4ac} }{2a}

Substituting values we have:

t =\frac{-138 +/-\sqrt{138^2 - 4(-16)(55)} }{2(-16)}

Rewriting:

t =\frac{-138 +/-\sqrt{19044 + 3520} }{-32}

t =\frac{-138 +/-\sqrt{22564}}{-32}

t =\frac{-138 +/-150.21}{-32}

We discard the negative root because we want to find the time.

We have then:

t =\frac{-138 -150.21}{-32}

t =\frac{-288.21}{-32}   \\t=9

Answer:

D. 0 = -16t^2 + 138t + 55; 9 s

3 0
3 years ago
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