All categories

2 years ago

A circular table has an area of 75.5, what is the radius and diameter?

Mathematics

1 answer:

skad [1K]2 years ago

4 0

Answer:

r = 4.90228481 in

d = 9.80456963 in

You might be interested in

jack has 14 cards. by the end of the week his amount of cards has doubled. how many cards does jack have now

slava [35]

Answer:

Jack has 28 cards.

Step-by-step explanation:

To double 14, multiply 14 times 2. 14x2=28

6 0

3 years ago

Read 2 more answers

Enter the equation in standard form

swat32

The general equation with quadratic equation is “ax^2 + bx + c = 0”. Therefore, this equation can be standardized to “x^2 - 7x - 8 = 0”

8 0

2 years ago

-36y=x^2 The directrix of the parabola is:

Aleksandr-060686 [28]

Here, the equation of parabola is: (-36y)=x^2
The standard form of parabola is:

(X-h)^2=4p(y-k).
According to given equation, vertex = (0,0) and p = -9
This a vertical parabola opening down, because p = -9 here.
Therefore ditectrix will be y= -9

6 0

3 years ago

Please help please -2x - x + 8 = ?

nataly862011 [7]

Answer:

-3x + 8

Step-by-step explanation:

Simplify. combine like terms (terms with the same amount of variables).

Subtract -2x and x: -2x - x = -3x

-3x + 8 is your answer.

7 0

3 years ago

Tickets for a play cost $3 for children and $10 for adults. A group of 25 people paid a total of $201 for tickets to the play. H

lidiya [134]

Answer: There were 7 children

Step-by-step explanation:

Let's use x to represent the children and y to represent the adults.

We know they combine to make a group of 25 people so x+y=25

We also know that they paid $201 and that there is $3 per child and $10 for adults so 3x+10y=201

I will solve by substitution.

Solve for y in the first equation

$x+y=25\\x-x+y=25-x\\y=25-x$

Sub in our value for y into the other equation and solve for x

$3x+10y=201\\3x+10(25-x)=201$

Step 1) Simplify

$3x+250-10x=201\\-7x+250=201$

Step 2) Subtract 250 from both sides

$-7x+250-250=201-250\\-7x=-49$

Step 3) Divide both sides by -7

$\frac{-7x}{-7} =\frac{-49}{-7}\\x=7$

8 0

2 years ago

Read 2 more answers