List five examples of materials and equipment that can be used for math activities.

Find the distance between (-10.-15) and (12, 18).

raketka [301]

Answer:

11 $\sqrt3$ or 39.66 units.

Step-by-step explanation:

Use the distance formula!

4 0

2 years ago

Read 2 more answers

The students in a class were asked how many siblings they have. The data obtained is represented in the dot plot. The number of

Grace [21]

Answer:

0 Siblings: 4 Students

3 or more siblings: 5 students

Step-by-step explanation:

The numbers at the bottom represents how many siblings they have and the dots represent the number of studens so using this we know:

0 Siblings: 4 Students

1 Sibling: 3 Students

2 Siblings: 3 Students

3 Siblings: 1 Student

4 Siblings: 0 Students

5 Siblings: 2 Students

6 Siblings: 1 Student

7 Siblings: 1 Student

3 or more: 1 + 0 + 2 + 1 + 1 = 5

3 or more siblings: 5 students

5 0

3 years ago

6. The points below represent a direct variation, find

Lana71 [14]

Answer:

y=40

Step-by-step explanation:

A direct variation is a relationship between two numbers where the output equals the input times a constant.

The equation for a direct variation can be written as

y=kx

We can figure out the y value of the second coordinate by finding out what the constant (k) is. We can do that by plugging in the first coordinates into the equation.

y = kx

10 = 6k

10/6 = k

We can solve for y by plugging this constant, and the second coordinate into the equation.

y=kx

y=10/6(24)

y=40

7 0

4 years ago

X/-4 = -1.1 I’m bad at one step equations so thank you if you help <3

icang [17]

x/-4 = -1.1

=> x = -1.1 × -4

=> x = 4.4

8 0

3 years ago

on a piece of paper, graph this system of equations. y = - x - 10 y = x^2 - 2x - 3 then determine which answer choice matches th

olasank [31]

Answer:

Option D. No solution

Step-by-step explanation:

We have the equation of a line:

$y = - x - 10$

We find their cut points.

Cut point with the y axis. (x = 0)

$y = -(0) -10\\y = -10$

Cut point with the x axis. (y = 0)

$0 = -x -10\\x = -10$ .

The line cuts to the x-axis at $x = -10$ and cuts the y-axis at $y = -10$

We have a parabola

$y = x ^ 2 - 2x - 3$

We can factor this quadratic equation by looking for 2 numbers that when multiplied give as result -3 and that when adding these numbers as a result -2. These numbers are -3 and 1.

Then the factors are:

$(x-3)(x + 1) = 0$

The zeros are 3 and -1. So the parabola cuts to the x axis at points 3 and -1.

Now we find the cut points with the y axis. (x = 0)

$y = (0-3)(0 + 1)\\y = -3.$

The parabola cuts to the axis y in y = -3.

Now we can graph the line and the parabola. Observe the attached image.

The system has no solution because the line and the parabola never intersect or touch each other. The answer is the option D

8 0

3 years ago