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3 years ago

Help me answer this PLEASE !!

Mathematics

1 answer:

zloy xaker [14]3 years ago

7 0

Answer:

1. A = 2184 yd. P = 212 yd.

Step-by-step explanation:

1. To find the perimeter of an object you need to do this formula: 2L * 2W which is 2 times the length times 2 times the width.

To find the Area you have to do this formula: H * W which means height times width.

2. They would need the area to fill the rectangle since you need to fill it and the area is the inside of the rectangle

3. She will need the perimeter since she is walking around the field and the perimeter is the outside (around) the shape.

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PLEASE HELP ASAP!!! CORRECT ANSWERS ONLY PLEASE!!! I CANNOT RETAKE THIS!!

ololo11 [35]

Answer:

The zeros occur when x = -3 , -1 , 1 and 7

Step-by-step explanation:

I don't exactly know how to do this so I can show you how to do it using some sort of method of division. There are 2 huge steps to be taken. Start with 1

Using synthetic division you get

-1 || 1 - 4 -22 4 21

-1 5 17 -21

===================

1 - 5 -17 21 0

So far we have x = - 1 or (x + 1) is a factor.

It turns out by trial and error that x = - 3 is a factor. What you get after that synthetic division is x^2 - 8x + 7 which factors into (x - 7)(x - 1)

So what we get is

(x - 1)(x + 1)(x - 7 )(x +3)

5 0

3 years ago

Please solve and show your work: (-4m^9+2m^7-14m^6)÷2m^3

katrin2010 [14]

The first step for solving this expression is to write the division as a fraction.
$\frac{-4m^{9}+2 m^{7} -14 m^{6} }{2}$ × m³
Factor out 2 from the numerator (top) of the fraction.
$\frac{2(-2 m^{9} + m^{7}-7 m^{6} ) }{2}$ × m³
Reduce the fraction with 2.
(-2 $m^{9}$ + $m^{7}$ - 7 $m^{6}$ )m³
Lastly,, distribute m³ through the parenthesis to get your final answer.
-2 $m^{12}$ + $m^{10}$ - 7 $m^{9}$
Let me know if you have any further questions.
:)

4 0

3 years ago

A disco ball is shaped like a sphere with a diameter of 16 inches. To the nearest square inch, what is the surface of the disco

Mademuasel [1]

If the diameter is 16 inches, then its radius is half that, r = 8.

$\bf \textit{surface area of a sphere}\\\\
A=4\pi r^2\quad 
\begin{cases}
r=radius\\
-----\\
r=8
\end{cases}\implies A=4\pi 8^2$

5 0

3 years ago

Find the slope and te y intercept y=-5x

babunello [35]

This equation is written in slope intercept form (y=mx+b where m is slope and b in the y intercept).

The m value here is -5 so that is the slope.
The b value here is 0 so the y intercept is at 0.

You can also find this by plugging 0 for the value of x.
y= -5(0)
y= 0

7 0

3 years ago

Solve for x. X over 8 = 9 over 12. Simplify ur answer best as possible

lora16 [44]

Answer:

Step-by-step explanation:

x/8 = 9/12

We can use cross products to solve

x*12 = 8*9

12x = 72

Divide each side by 12

12x/12 = 72/12

x=6

5 0

3 years ago