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3 years ago

Order the numbers from least to greatest. 1.5, 1.27, 1.4, 1.05 , 1.07 , 1.44

Mathematics

1 answer:

Step2247 [10]3 years ago

4 0

Answer:

Step-by-step explanation:

1.5, 1.44, 1.4, 1.27, 1.07, 1.05

I think this is the answer

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Alma wants to prove to her parents that listening to music while she studies for her tests will help her get better grades. She

Paul [167]

Although Alma did use a survey to ask her friends whether listening to music improves their test grades, she did not provide a sample nor could she experiment without using this variable. Thus, using the same reasoning, choices A, B, and C are excluded.

D) She did not use a random sample, and she tried to show cause and effect with an observational study.

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4 years ago

An equilateral triangle has the same perimeter as a square whose side is 12.What is the length of each side of the triangle?

Vadim26 [7]

Answer:

The side length of the triangle is 16

Step-by-step explanation:

The perimeter of the triangle is

P = 3t since the sides are all equal

The perimeter of the square is

P = 4s since the sides are all equal

We are given the perimeter of the square is 12

P = 4*12

P = 48

We are told the perimeters are equal

48 = 3t

Divide by 3

48/3 = 3t/3

16 =t

The side length of the triangle is 16

8 0

3 years ago

Read 2 more answers

The diagram shows the outline of a dining room with a bay window. Explain how to find the area of the room.

zhannawk [14.2K]

Answer: Divide the room into two figures (a rectangle and a trapezoid), then find the area of both figures and add them in order to calculate the area of the dining room.

Step-by-step explanation:

Divide the room into two figures: a rectangle and a trapezoid (as you can observe in the picture attached).

You need to find the area of the trapezoid and the area of the rectangle and then add them. This sum will be the area of the dining room.

First, you need to remember that:

1. The area of a rectangle can be calculated with this formula:

$A_r=lw$

Where "l" is the lenght and "w" is the width of the rectangle.

2. The following formula is used to calculate the area of a trapezoid:

$A_t=h(\frac{B+b}{2} )$

Where "B" and "b" are the bases of the trapezoid and "h" is the height of the trapezoid.

Therefore, the area of the dining room will be:

. $A_{room}=A_r+A_t\\\\A_{room}=lw+h(\frac{B+b}{2} )$

4 0

3 years ago

Read 2 more answers

Can you help me please, please answer seriously, no links please

Talja [164]

Answer:

Centre: $(\frac{1}{2} ,2)$

Radius = $2$

Step-by-step explanation:

General formula for a circle: $(x-a)^2+(y-b)^2=r^2$ , where $r=$ the radius of the circle and $(a,b)$ is the centre of the circle.

To find the centre and radius of the circle we should re-write the given equation in the form of the general formula.

So, put the terms with the same variables together:

$4x^2-4x+4y^2+16y+1=0$

We can see that there is a common factor of $4$ , so let's simplify by dividing by $4$ :

$x^2-x+y^2+4y+\frac{1}{4} =0$

Here we can get it into the general formula by completing the square.

We do this by turning a quadratic with form $ax^2+bx+c=0$ into the form $(x-d)^2-e+c=0$ , where d is half of the coefficient of $x$ , e is $d^2$ and c is the constant of the quadratic.