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3 years ago

14

How much fencing is required to enclosed a circular garden whose radius is 14 m? use 22/7 for π

1 answer:

stellarik [79]3 years ago

8 0

Answer:

$circumference = 2\pi \: r \\ = 2 \times \frac{22}{7} \times 14 \\ 88 \: m \: fence$

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Give an example of a research experiment, indicating the independent and dependent variables, as well as the experimental and th

Vitek1552 [10]

Answer:

In a study to determine whether how long a student sleeps affects test scores, the independent variable is the length of time spent sleeping while the dependent variable is the test score. You want to compare brands of paper towels, to see which holds the most liquid.

hopes it helps

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4 years ago

What is the value of the exponential expression 24?<br> O A. 8<br> B. 32<br> O C. 64<br> O D. 16

adelina 88 [10]

Answer:

16

Step-by-step explanation:

2^4 is the same thing as 2*2*2*2*2. 2 times 2 is 4, times 2 is 8, times 2 again is 16.

4 0

2 years ago

Ok. Keleiek 2/7=^++^*€€£|€|£|

nikdorinn [45]

What is that??????????????

3 0

3 years ago

Read 2 more answers

Adele is buying a sport utility vehicle. She is trying to choose among a variety of options. Brand: Brand A or Brand B Transmiss

rewona [7]

<span>She should have multiplied the total of all the choices</span>

7 0

4 years ago

Read 3 more answers

X + x2 - 5x -5 = 0<br> state the possible rational zeros and find all the zeros of the polynomial

Mariulka [41]

Answer:

<em>The zeros of the polynomial are -1 and 5</em>

Step-by-step explanation:

<u>Quadratic Equation Solving</u>

The standard representation of a quadratic equation is:

$ax^2+bx+c=0$

where a,b, and c are constants.

Solving with the quadratic formula:

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

We have the following equation to solve:

$x+x^2-5x-5=0$

Before attempting to solve it, we must simplify the equation.

Collecting like terms and reordering:

$x^2-4x-5=0$

Here: a=1, b=-4, c=-5

The discriminant of this quadratic equation is:

$d=b^2-4ac$

$d=(-4)^2-4(1)(-5)=16+20=36$

Given d is positive, the equation has two roots, and since d is a perfect square, both roots are rational.

Applying the formula:

$\displaystyle x=\frac{4\pm \sqrt{36}}{2(1)}$

$\displaystyle x=\frac{4\pm 6}{2}$

Dividing by 2:

$x=2\pm 3$

Separating both roots:

x = 2 + 3 = 5

x = 2 - 3 = -1

The zeros of the polynomial are -1 and 5

8 0

3 years ago