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
Zielflug [23.3K]
3 years ago
5

Find the distance between points P(3, -8) Q(7,4). Round to the nearest tenth if necessary

Mathematics
1 answer:
Gnom [1K]3 years ago
3 0

To calculate the distance between two points, we can use a formula that is a variation Pythagorean Theorem. Look:


\mathsf{d=\sqrt{(x_Q-x_P)^2+(y_Q-y_P)^2}}


"d" represents the distance and coordinates are expressed as follows: (x, y)


Let's go to the calculations.


\mathsf{d=\sqrt{(x_Q-x_P)^2+(y_Q-y_P)^2}}\\\\ \mathsf{d=\sqrt{(7-3)^2+(4-(-8))^2}}\\\\ \mathsf{d=\sqrt{(4)^2+(4+8)^2}}\\\\ \mathsf{d=\sqrt{16+(12)^2}}\\\\ \mathsf{d=\sqrt{16+144}}\\\\ \mathsf{d=\sqrt{160}}\\\\ \mathsf{d=12,649110640673...}\\\\ \underline{\mathsf{d\approxeq12,6}}



The answer is 12,6 u.c.

You might be interested in
What is the slope of the function?<br> -10<br> -5<br> 5<br> 10
bixtya [17]

Answer:

m= 1/2

Step-by-step explanation:

3 0
3 years ago
Simplify:<br> 2(xy - 7) = [?]<br> x = -1 and y = 3
fiasKO [112]

Answer:2(xy-7)= -20

Step-by-step explanation:

Plug in -1 for x and 3 for 3, as the question says that x and y represent those values.

2(xy-7) = ?

2((-1)(3) - 7) = ?

2(-3-7)=?

2(-10)

-20

2(xy - 7) = -20

5 0
3 years ago
When full, a cinema house has n people. When 280 people have taken seat the remaining seats comes to $384 if each tickets cost $
Yuki888 [10]
I don’t understand the question, can you restate it?
5 0
3 years ago
Read 2 more answers
Henry had 2.5 lb of apples for a fruit salad. The recipe says that 5 lb of apples are needed for the salad. Henry went to the st
svetoff [14.1K]
<span> C. No, Henry did not get a reasonable amount of apples because he needed 2.5 more pounds of apples (2.5 + 2.5 = 5).

</span>
8 0
3 years ago
Read 2 more answers
Karen has $1.70 in coins. Karen has 8 coins, all of which are quarters or dimes.
kumpel [21]

x+y=8 and 25x+10y=170 are the linear equations.

x+y≤8 and 25x+10y≤170 are the inequalities.

Step-by-step explanation:

Given,

Worth of coins = $1.70 = 1.70*100 = 170 cents

Number of coins = 8

1 quarter = 25 cents

1 dime = 10 cents

Let,

x represent the number of quarters

y represent the number of dimes

1. Write an equation to represent the amount of coins Karen has.

x+y = 8

2.Write an equation to represent the value of the coins Karen has.

25x+10y=170

x+y=8 and 25x+10y=170 are the linear equations.

For inequalities, the amount cannot increase number of coins and worth but it can be less, therefore,

x+y≤8

25x+10y≤170

x+y≤8 and 25x+10y≤170 are the inequalities.

Keywords: linear equations, addition

Learn more about linear equations at:

  • brainly.com/question/10570041
  • brainly.com/question/10610299

#LearnwithBrainly

4 0
4 years ago
Other questions:
  • Formula for the area of a triangular prisim
    11·2 answers
  • If 3x – 9 = -2x + 16, then 7x=?
    13·2 answers
  • Hey ya'll, my assignment asked me.....Evan spent 20 hours doing homework last week. This week he spent 25 hours doing homework.
    5·2 answers
  • How many millimeters are in 170 centimeters
    11·1 answer
  • HELP! need the answer!
    7·1 answer
  • Someone answer these for me-​
    5·2 answers
  • kerry swims every 3 days and bikes every 5 days . if she swims and bikes today how many days will pass before she does both on t
    15·1 answer
  • Is 100% considered a rational or whole number?
    7·2 answers
  • Find the area of the kite.
    15·1 answer
  • What is the equation of the line that passes through the point (3, 3) and has a slope<br> of o?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!