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djverab [1.8K]
3 years ago
5

I need some help on this problem

Mathematics
1 answer:
wolverine [178]3 years ago
5 0
437 is your answer
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3)131.1
- 12
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11
- 9
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21
- 21
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0
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The vertices of APQR are P(-3, 8) Q(-6,-4), and R(1, 1). If you reflect APQR across the x-axis, what will be the coordinates of
Ymorist [56]

Answer:(-3,-8),(-6,4),(1,-1)

Step-by-step explanation:

Given

Vertices of the triangle are

P(-3,8), Q(-6,-4),R(1,1)

Coordinates (a,b) when reflected about x-axis is given as (a,-b) i.e. Y coordinate changes its sign

\therefore P\rightarrow P'(-3,-8)\\\Rightarrow Q\rightarrow Q'(-6,4)\\\Rightarrow R\rightarrow R'(1,-1)

4 0
2 years ago
Suppose that PR=47. Solve for x and find the lengths of PQ, and QR.
Troyanec [42]

Answer:

×=7, pq=27, qr=20.

Step-by-step explanation:

(4x-1)+(3x-1)=47 therefore 7x-2=47 or 7x=49 and x=7, pq=4x-1=27, qr=3x-1=20.

6 0
3 years ago
A car is traveling at a rate of meters per second. What is the car's rate in kilometers per hour? How many kilometers will the c
jenyasd209 [6]

Answer:

- The car's rate in kilometers per hour is 108 kilometers per hour

- The car will travel 540 kilometers in 5 hours

Step-by-step explanation:

Here is the complete question:

A car is traveling at a rate of 30 meters per second. What is the car's rate in kilometers per hour? How many kilometers will the car travel in 5 hours? Do not round your answers.

Step-by-step explanation:

  • To determine the car's rate in kilometers per hour, we will convert 30 meters per second to kilometer per hour.

1000 meters = 1 kilometer

∴ 1 meter = 0.001 kilometer

3600 seconds = 1 hour

∴ 1 second = 1/3600 hour

Therefore,

30 meters/ second = \frac{30 \times 0.001 kilometer}{1/3600 hour}

= \frac{30 \times 0.001 \times 3600 kilometers}{1 hour}

= 108 kilometers / hour

Hence, the car's rate in kilometers per hour is 108 kilometers per hour.

  • To determine how many kilometers the car will travel in 5 hours, that is we are to determine the distance covered by the car in 5 hours.

From the formula

Speed = Distance / Time

∴ Distance = Speed × Time

(NOTE: Speed is also known as rate)

Speed (Rate) = 108 kilometers / hour

Time = 5 hours

∴ Distance = Speed × Time gives

Distance = 108 × 5

Distance = 540 kilometers

Hence, the car will travel 540 kilometers in 5 hours.

7 0
3 years ago
Need help plz show work!
andrezito [222]
1 chair = X
8 chairs = 8X

1 table = Y

8X - Y is the more amount you paid for chairs
8 0
3 years ago
Firstright answer will get brainlist
avanturin [10]
P:(1/2)=50
p=50*(1/2)=25
5 0
2 years ago
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