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3 years ago

I am so confused help me plz !!

Mathematics

1 answer:

Kryger [21]3 years ago

4 0

Answer:

1. -5.5 2. 5 3. 5, 5.5

Step-by-step explanation:

For #1 just look at what point it would be towards the y- axis.

For #2 you want to kinda estimate what it would be between.

And lastly #3 they want to see the exact coordinates for Q so, look at the x axis first they the y axis. Remember Run then Jump

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You are buying an area rug for your bedroom. The area of your room you want to cover is 40 feet squared. You find that the lengt

Kamila [148]

The length and the width of the rug having an area of 40 square feet will be 5 feet and 8 feet respectively.

Area is defined as the space covered by any object in the two dimensional plane. Here it is given that the area of the rug should be 40 square feet and the length of the rug is 3 less then its width.

So to find out the length and the width we will form an equation.

Let the width is = x feet

So the length will be = x-3 feet

Now the area will be

$x(x-3)=40$

$x^2-3x-40=0$

By solving the quadratic equation

$x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}$

$x=\dfrac{-(-3)\pm\sqrt{9+(4\times1\times40}}{2}$

$x=\dfrac{3\pm13}{2}$

$x=8 \ and \ \ x=-5.5$

Here the value of x will be positive because length cant be negative.

So the width of the rug will be x=8 feet

Length of the rug will be x-3= 8-3=5 feet

Hence the length and the width of the rug having an area of 40 square feet will be 5 feet and 8 feet respectively.

To know more about area follow

brainly.com/question/3948796

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7 0

3 years ago

Identify the diameter of Q given that a= 169 pie in2

Kaylis [27]

Answer:

the diameter will be D=26 in.

Step-by-step explanation:

The area of a circle is given by:

$A=\pi R^{2}$ (1)

Where:

A is the area
R is the radius of the circle

Now, we know that A = 169 π in²

So, we just need to use equation 1 to find R.

$169\pi = \pi R^{2}$

$R=\sqrt{169}$

$R=13 \: in$

Therefore, the diameter will be D=2*R=26 in.

I hope it helps you!

4 0

3 years ago

Which of the following is listed from least to greatest?

Blizzard [7]

Answer:

B. .002, .03, .6, .9

Step-by-step explanation:

.002 is .002

.03 is .030

.6 is .60

And, .9 is .90

So in conclusion, least to greatest would be .002 , .030 , .60 , then last but not least .90. The option that best matches this is B!

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4 years ago

Read 2 more answers

Find the area of the shape shown<br> below.

Allisa [31]

Answer:

The area of the figure is 28 units².

Step-by-step explanation:

Find the area of the full rectangle, ignoring the triangle.

$a = lw \\ a = 4 \times 8 = 32$

Then, find the area of the triangle:

$a = \frac{bh}{2} \\ a = \frac{2 \times 4}{2} \\ a = 4$

Finally, subtract:

$32 - 4 = 28$

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3 years ago

How to find the intersection of -3x+y=9 and 4x-7y=5

pogonyaev

Intersection
x - 7,0
y - 0,-4

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3 years ago