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ololo11 [35]
2 years ago
8

Need help plzzzzzzxz

Mathematics
1 answer:
77julia77 [94]2 years ago
5 0
Y=4x
Your answer will be x in relation to y. In this case, x goes in to y 4 times.
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NEED HELP ASAP What is the perimeter of the triangle
marin [14]

Answer:

its a right angle and a its an acute angle as well so it be 5

8 0
2 years ago
Six friends together with their respective partners all meet up for a meal. To  commemorate the occasion, they arrange for a ph
olasank [31]

Answer:

1440 different arrangements are possible.

Step-by-step explanation:

Number of arrangements of n elements:

The number of arrangements of n elements is given by:

A_{n} = n!

In this question:

6 couples, in which each can be positioned in 2 ways(him/her or her/him). So

T = 2A_{6} = 2*6! = 1440

1440 different arrangements are possible.

8 0
3 years ago
A cube has its length doubled and its width and height remain the same. How does the new volume compare to the old volume?
Evgen [1.6K]

The new value will be double of the old volume.

Step-by-step explanation:

Let l be the length of cube

w be the width of the cube

and

h be the height of the cube

then the volume of cube is given by:

V = lwh

Now,

Doubling the the length, 2l

The new volume will be:

V_n = 2lwh\\V_n = 2(lwh)\\V_n = 2V

Hence,

The new value will be double of the old volume.

Keywords: Volume, area

Learn more about volume at:

  • brainly.com/question/6208262
  • brainly.com/question/6166224

#LearnwithBrainly

5 0
3 years ago
Read 2 more answers
Sam has a rope that is 38 feet long. He cuts the rope into 2 pieces. One piece is 15 feet long.
nexus9112 [7]

Answer:

c 23ft

Step-by-step explanation:

6 0
3 years ago
Need ASAP PLZ 21 POINTS!!!
Dmitriy789 [7]

Answer:

Two of the statements apply:

  • Second statement: Binh should have graphed the y-intercept of y = x - 3 at (0, - 3)

  • Last statement: Binh should have found the point of intersection to be (1, - 2).

Explanation:

1. Line 1

     y=-\dfrac{1}{2}x-\dfrac{3}{2}

2. Line 2

    y=x-3

3.  Binh’s Graph on a coordinate plane, a line with equation y = x - 3 goes through (- 3, 0) and (0, 3).

This is wrong because the point (-3, 0) is not on the line y = x - 3:

  • x = -3 ⇒ y = -3 - 3 = -6 ⇒ (-3,-6)

The other point, (0, 3) is wrong too

  • x = 0 ⇒ y = 0 - 3 = - 3 ⇒ (0, -3) This is the y-intercept

4. A line with equation y = -(1/2)x - (3/2) goes through (- 3, 0) and (1, -2).

Check the points:

  • x = -3 ⇒ y = -(1/2)(-3) - 3/2 = 3/2 -3/2 = 0 ⇒(-3,0) \checkmark

  • x = 1 ⇒ y = -(1/2)(1) - 3/2 = -1/2 -3/2 = -2  ⇒ (1, - 2)\checkmark

Both points are correct

5. Binh says the point of intersection is (0, –3). Which statements identify the errors Binh made?

<em>Binh listed the coordinates in the wrong order when describing the point of intersection on his graph?</em>

  • No, his error was on the procedure, look below

<em>Binh should have graphed the y-intercept of y = x - 3 at (0, - 3)?</em>

Correct!

  • This was one of the errors, as shown above the y-intercept of the line y = x - 3 is (0, -3) and not (0, 3).

<em>Binh should have graphed the y-intercept of y = x - 3 at (0, 1)?</em>

  • No. it is (0, 3) as stated above.

<em>Binh should have graphed the y-intercept of y = -(1/2)x -3/2 at (0, -1/2)?</em>

No, this is wrong:

  • The y-intercept is y = 0 - 3/2  = -3/2 ⇒ (0, -3/2)

<em>Binh should have found the point of intersection to be (1, - 2).</em>

Correct!

Yes, the solution of the equation is (1, -2) and he should have found that intersection point. Proof:

  • x - 3 = -1/2x - 3/2
  • x + 1/2x = 3 - 3/2
  • 3/2x = 3/2
  • x = 1

  • y = x - 3 ⇒ 1 - 3 = - 2

Thus, the point of intersection is (1, -2).

6 0
3 years ago
Read 2 more answers
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