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Natalka [10]
3 years ago
7

Find the distance between the points given. (-3, 2) and (9,-3)

Mathematics
1 answer:
marishachu [46]3 years ago
8 0

Answer:

13

Step-by-step explanation:

To find the distance between the points given, we use the Distance Formula (otherwise known as rewriting the pythagorean theorum).

d=√(x_2 - x_1)²+(y_2 - y_1)²)

Distance (d) = √(9 - -3)2 + (-3 - 2)2

= √(12)2 + (-5)2

= √169

= 13

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A water tank hols 540 galloms but is leaking at a rate of 4 gallons per week a second water tank holds 720 gallons but is leakin
Murrr4er [49]
Let after n week both tanks have same quantity of water .

for first tank
=============
tank hold 540 gallon of water ,
leaking of water 4 gallon /week
so, in n week water leak from the tank =4× n = 4n

now, after n week quantity of water in the tank = 540 -4n

for second tank
==============
quantity of water in the tank =720 gallon
leaking of water at the rate = 7gallon/week
so, after n week water leak from the tank = 7× n =7n

after n week quantity of water rest in the tank = 720 -7n

now ,
according to question ,

water in first tank = water in second tank
540 -4n = 720 -7n

7n -4n = 720 -540

3n = 180

n = 60

hence , after 60 week both tank have same quantity of water.
4 0
3 years ago
Who wanna play among us
blondinia [14]

Answer:

I do pls

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Whats (2x-3y+4z)+(9x-8y+7z)
eduard

Answer:

=(2x-3y+4z)+(9x-8y+7z)

=2x+9x-3y-8y+4z+7z

=11x-11y+11z

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4 0
2 years ago
After 9 months, the simple interest earned on an investment of $1200 is $72. find the interest rate.
Deffense [45]
Use the formula i=prt, where i is the interest earned, p is the principal, r is the rate (as a decimal fraction) and t is the elapsed time, in years.

Here i = $72 = $1200 r (9/12)                    (9 months is 9/12, or 3/4, of 1 year)
Reducing, 
              $72 = $900r
                                          Solving for r, r=0.08, or 8 percent per year.
7 0
3 years ago
Out of seniors at a local high school, 60% went on the senior trip. At the hotel , one room was reserved for every 4 students .
sweet [91]

Answer:

<u>Number of rooms reserved for the students are - 90 .</u>

Step-by-step explanation:

Firstly ,

As we know 60% of the 600 students went on the trip,

Then ,

Number of students went on the trip = 60% of 600

                                                          = \frac{60}{100}\times600

                                                        = 360

Now ,

Given - One room is reserved  for 4 students ,

Therefore , Number of rooms for 360 students = \frac{360}{4}

                                                                             = 90

<u>Hence , the answer is  90 rooms reserved for the students.</u>

7 0
2 years ago
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