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nataly862011 [7]
3 years ago
7

Find the distance between the points (10,9) and (-2, -7).

Mathematics
1 answer:
Mashcka [7]3 years ago
5 0
The distance is 20

Have a great day!
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The length of a rectangle is six times its width. If the rectangle is 600 yd^2 find its perimeter
vovangra [49]

Answer:

8400 yd^2

Step-by-step explanation:

600x 6 because its six times

3600

L+L+W+W=p

8400 yd ^2

4 0
3 years ago
A rectangular field is to be enclosed by a fence and divided
Phantasy [73]

Answer:

80000 square meters

Step-by-step explanation:

perimeter + dividing fence = 800

let a = length

let b = width

let c = length of dividing fence

perimeter = 2*a + 2*b

let's say...

c is the same as the length

2a + 2b + c = 800

2a + 2b + a = 800

3a + 2b = 800

area = length*width

area = a*b

area / b = a

3*(area/b) + 2b = 800

3*(area/b) = 800 - 2b

area/b = (800 - 2b)

area = (800 - 2b)*b

To make the area large, we make the right hand side large.

800b - 2b^2

If you put in terms of x, y it looks like a downward opening parabola, so the max area is at the vertex. Half way between the roots.

y = -2x^2 + 800x

y = -x^2 + 400x

0 = x*(-x + 400)

roots are x= 0 and x = 400

vertex is at x, aka b = 200

area at b=200 is (800 - 400)*200 = 80000

and a is area/b... 80000/400 = 200

5 0
3 years ago
Math workshops and final exams: The college tutoring center staff are considering whether the center should increase the number
ludmilkaskok [199]

Answer:

2. Number of workshops attended.

Step-by-step explanation:

The variable of interest for predicting the final exam score and doing regression analysis is workshop attendance.  Therefore, the response variable should be the number of workshops attended by each student.

This also agrees with what the college tutoring center staff are considering, which forms the research question: "should the center increase the number of math workshops they offer to help students improve their performance in math classes?"

3 0
4 years ago
Emilia is painting a triangular picture frame. The perimeter is 30 inches. If one side is 13 inches long and another side is 5 i
Trava [24]

Answer:

12 inches

Step-by-step explanation:

30-13=17

17-5= 12

Use information about the triangle's perimeter, to find the side length of C.

If the triangle frame is a right triangle, than you could use the Pythagorean Theorem and use the following formula, a^2 + b^2 = c^2, to find the measure of side c.

Have a great rest of your day, and I hope this helps!

<em>-kiniwih426</em>

7 0
3 years ago
What pattern do you notice
Lemur [1.5K]
Everything is divided by 2
3 0
4 years ago
Read 2 more answers
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