1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Viktor [21]
3 years ago
5

Find the length of the segment. round to the nearest tenth of a unit P(1,2) Q(5,4)

Mathematics
2 answers:
Alborosie3 years ago
7 0
Hello, 

d= \sqrt{ (x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}  }  \\  \\ d=\sqrt{ (5-1)^{2}+(4-2)^{2}  } \\  \\ d=\sqrt{ 4^{2}+2^{2}  }  \\  \\ d= \sqrt{16+4}  \\  \\ d= \sqrt{20}  \\  \\d= \sqrt{2^{2}*5 }\\  \\d= 2\sqrt{5 } \\ \\  d=4.5

Answer: lenght= 4.5
yuradex [85]3 years ago
7 0
P(1,2)\ \ \ Q(5,4)\\\\
PQ=\sqrt{(x_Q-x_P)^2+(y_Q-y_P)^2}\\\\
PQ=\sqrt{(5-1)^2+(4-2)^2}=\sqrt{16+4}=\sqrt{20}=2\sqrt{5}\approx4,5\\\\
Length\ of\ this\ segment\ is\ equal\ to\ 4,5.
You might be interested in
which of the following could be side lenths of a right triangle? A.) 0.9cm, 1.2cm, 1.5cm B.) 0.9cm, 1.5 cm, 1.5cm C.) 0.9 cm, 1.
Gwar [14]

Answer:

The answer A

Step-by-step explanation:

B: You need a side that is longer than 2 equal sides. B is incorrect.

A: Try

9^2 + 12^2 = 15^2 if that works, A will work.

81 + 144 = 225

This works. I used these numbers because they were easier to see.

0.9^2 + 1.2^2 = 1.5^2

0.81 + 1.44 = 2.25

2.25 = 2.25

That is the answer A

But we have to check the  other two.

C:

0.9^2 = 0.81

1.2^2 = 1.44

1.8^2 = 3.24   This won't work. 3.24 is just too big.

D:

0.9^2 = 0.81

0.6^2 = 0.36

1.5^2 = 2.25   It's too far away.

5 0
3 years ago
A function is shown f(x)=2/3x+3 what is the value of f(12)
exis [7]

Answer:

55/18

Step-by-step explanation:

f(x) = 2/3*12 +3

= 1/18 +3

=55/18

7 0
3 years ago
Rectangle A measures 10 inches by 8 inches. Rectangle B is an enlarged copy of Rectangle A. Select all of the measurement pairs
Fudgin [204]

Answer:

See Explanation

Step-by-step explanation:

Given

Rectangle A:

Length: 10\ in

Width: 8\ in

Required

Determine the possible dimensions of Rectangle B

<em>The question has missing options; however, the question can still be solved.</em>

<em></em>

Rectangle B being an enlarged copy of A implies that the dimension of A A is enlarged in equal proportion to form B

Take for instance, the measurements of Rectangle B are

Length: 15 in

Width: 12 in

Divide the corresponding lengths of B by A to get the enlargement ratio

Ratio = \frac{B}{A}

For length:

Ratio = \frac{15}{10}

Ratio = 1.5

For width

Ratio = \frac{12}{8}

Ratio = 1.5

Notice that both ratios are the same.

For this measurement of B, we can conclude that B is an enlargement of A

Assume another measurements for B

Length: 20\ in

Width: 10\ in

Calculate Ratios

Ratio = \frac{B}{A}

For length:

Ratio = \frac{20}{10}

Ratio = 2

For width

Ratio = \frac{10}{8}

Ratio = 1.25

Notice that, both ratios are not equal.

For this measurement of B, we can conclude that B is not an enlargement of A

<em>Conclusively, all you have to do is: determine the ratios of the dimensions of B to A, if the result are equal then B is an enlarged copy of A; if otherwise, then B is not an enlarged copy</em>

5 0
3 years ago
Elina and Gustavo leave Cayley H.S. at 3:00 p.m. Elina runs north at a constant speed
Andrej [43]

Answer:

the answer to your question is 'b'

8 0
2 years ago
Simplify (6^2)(3^3)(3*6)^4
kherson [118]

Answer:

102036672.............

4 0
3 years ago
Other questions:
  • Liza gets paid $5.50 an hour to babysit her little cousins. Last weekend, she watched them for three hours on Friday, nine hours
    10·2 answers
  • <img src="https://tex.z-dn.net/?f=48948%20%5Ctimes%20729555" id="TexFormula1" title="48948 \times 729555" alt="48948 \times 7295
    9·2 answers
  • The sum of two numbers is 72. one number is 4 less than the other number. what are the two numbers?
    10·1 answer
  • how many 16-ounce bottels would be needed to hold the same total amount of water of water as 56 20 ounces
    10·1 answer
  • How do you write 72.1 as a fraction
    8·2 answers
  • Prove that <br>sin x /(cosec x-cotx) = 1+ cos x​
    10·1 answer
  • H(x)=-x^2+10x-16 What is the height of the ball at the time it is thrown
    13·1 answer
  • (64/25)^-3/2 x (64)^1/3​
    12·1 answer
  • PLEASE I REALLY NEED HELP AND PLEASE PLEASE NO LINKS!!
    15·1 answer
  • The graph represents the height of a ball after being thrown versus time. Which statement is true? A. The ball attains a maximum
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!