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2 years ago

Pls help this is due in an hour pls!! i will give brainliest

Mathematics

2 answers:

nydimaria [60]2 years ago

5 0

Answer:

I can only answer one of them

Step-by-step explanation:

“1. If the top ten nations were randomly selected to march, one after another, into the stadium at the closing ceremonies, in how many ways could the nations have marched in?”

they can March in 4 ways

1. Straight

2. Left

3. Right

4. Round

Evgen [1.6K]2 years ago

5 0

Answer:

1. 3,628,800 ways

2. 3*2*1 = 6

3. 4*3*2*1 = 24

Step-by-step explanation: I don't know if everything right, sorry if they are not.

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X-18+ (24-3 )=72 just simplify for me to understand it well.

Nataliya [291]

Answer: x = 69

Step-by-step explanation:

X-18+ (24-3 )=72

solve the brackets

x-18 + 21 =72

cllect like terms

x = 72-21+18

x = 69.

kindly rate brainliest

5 0

3 years ago

A circle has an area of approximately 615 square millimeters. What is the diameter of the circle

noname [10]

Answer:

When using the given information, the diameter of the circle is going to be 28 mL.

Step-by-step explanation:

First, we need to know the formula for finding the area of a circle.

$Area=r^2\pi$

Now, we need to rearrange the formula so we can find the radius.

$Radius=\sqrt{\frac{A}{\pi} }$

Next, we plug in the given area into the equation.

$Radius=\sqrt{\frac{615}{\pi}}$

$Radius=\sqrt{196}$

$Radius=14$

Now that we have the radius, we can find the diameter. The radius is half the length of the diameter. So, in order to find the diameter, we have to multiply the radius by 2.

$14 * 2=28$