Find the area of a circle that has a radius of 14 feet. Approximate Π as 3.14. Round your answer to the nearest hundredth.

Answers

Answer 1

Answer: 615.44 because area of a circle=pi×radius^2

Answer 2

Answer:

Answer: 615.44 because area of a circle=pi×radius^2

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X^2 + 20x + 28 = 9 find the graphing/vertex form

Answers

Answer: $(x+10)^2+119=0$

Step-by-step explanation:

For a quadratic equation, the vertex form is given by : $y=a(x-h)^2+k$ , where (h, k) is the vertex.

The given quadratic equation: $x^2 + 20x + 28 = 9$

Subtract 9 from both sides

$=x^2+20x+19=0$

compare this to $x^2+bx=c$ , and add $((b)/(2))^2$ both sides

b= 20

$x^2+20+100+19=-100$ [(b/2)²=20/2=10]

$\Rightarrow\ x^2+2(x)(10)+10^2+119=0$

$\Rightarrow\ (x+10)^2+119=0\ \ \ [\because\ (a+b)^2=a^2+b^2+2ab]$

So, the vertex form : $(x+10)^2+119=0$

Find the equation of a line parallel to x=7 and passing through the point (2, -5)

Answers

Answer:

x = 2

Step-by-step explanation:

x = 7 is a vertical line parallel to the y- axis.

Thus a parallel line will also be vertical with equation

x = c

where c is the value of the x- coordinates the line passes through.

The line passes through (2, - 5) with x- coordinate 2, thus

x = 2 ← equation of parallel line

X=2
Hope this helped

Rule: start at 3 1/8, subtract 3/4

Answers

Answer:

2.375 i hope this helps! :)

Step-by-step explanation:

3 1/8 = 3.125

3/4 = .75

3.125 - .75 = 2.375

Find the new amount

42 customers increased by 50%

Answers

$1 \% = (1)/(100) \n \n50 \% = 50 \cdot (1)/(100)=(50)/(100)=(1)/(2) \n \n 42 + 42 \cdot 50 \% = 42 + \not4\not2^(21) \cdot (1)/(\not2^1)=42+21 = 63 \n \n Answer : \ new \ amount \ : 63$

You would divide 42 by 2 to find what 50% of the total would be the add that number to 42 to get the answer.

Adam wraps the top edge of the gift box shown with gold ribbon. The top and bottom edges of the box are square. If Adam has 24 1/4 cm of gold ribbon, does he have enough to decorate the top of the box?

Answers

The perimeter of a shape is the sum of the visible lengths of the shape. Adam does not have enough ribbon to decorate the top of the box.

I've added the gift box, as an attachment.

From the attached image, we have:

$Volume = 296$