How do I determine the radius of x^2+y^2=25 ?

Answers

Answer 1
Answer: Circles!!!

The general formula is:
x^2 + y^2 = r^2
where x and y form the circle while r is the radius.

You already have the problem set up in its general form and you don't want the radius squared... so square root everything.

If you do that then you'll get:
x + y = 5
where 5 is the radius and NOT the radius squared. If you have questions then leave a comment. Good luck!

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A plumber has 8 9/10 feet of rubber tubing to make 2 rubber pipes. He will use3 1/12 feet of tubing to make each pipe. The plumber says he will have about 3 feet of rubber tubing after he makes the pipes. Is his statement reasonable?

Answers

Answer:the answer is D

Step-by-step explanation:

This is reasonable because  feet can be rounded to 9 feet and  feet can be rounded to 3 feet. Since 9 - 2(3) = 3, the plumber will have about 3 feet of rubber tubing left. its true make sure you read the answer to make sure bc they can mix them up LOL

Change 12.39% to decimal

Answers

.1239
A decimal represents a value out of a whole, the "." representing everything under the amount of a whole (1). A percentage is essentially the same thing, except the "%" sign basically replaces the decimal. To convert a percentage to a decimal, move the decimal (and if there isn't one, add one to the right of the last number). Then, move that decimal two places to the right. For every empty space you move, add a zero there.

How far does a bus travel in 2.5 hours at 65 mph?

Answers

Speed = distance / time ⇒ distance = speed × time

distance = 65 mi / h * 2.5 h = 162.5 miles

Answer:

Distance traveled = 162.5 miles

Step-by-step explanation:

a bus travel in 2.5 hours at 65 mph

The time taken to travel is 2.5 hours

Speed of the bus is 65mph

To find the distance we use formula

Distance = speed * time

speed = 65

time = 2.5

Distance = 65* 2.5 = 162.5 miles

Distance traveled = 162.5 miles

Write 1 and 1/3 as an improper fraction

Answers

The improperfraction of 1(1/3) is 4/3.

What is a fraction?

A fraction is written in the form of a numerator and a denominator where the denominator is greater that the numerator.

We have two types of fractions.

Proper fraction and improper fraction.

A proper fraction is a fraction whose numerator is less than the denominator.

An improper fraction is a fraction where the numerator is greater than the denominator.

Example:

1/2, 1/3 is a fraction.

3/6, 99/999 is a fraction.

1/4 is a fraction.

We have,

1 and 1/3

An improperfraction means the numerator is greater than the denominator.

So,

1 and 1/3

= 1(1/3)

= (3 x 1 + 1) / 3

= 4/3

4 > 3 so it is an improperfraction.

Thus,

The improperfraction of 1(1/3) is 4/3.

Learn more about fractions here:

brainly.com/question/24370499

#SPJ5

Answer:

4/3

Step-by-step explanation:

to change a mixed number to an improper fraction, you have to multiply the denominator by the whole number and add the numerator to the product. This is your numerator. The denominator stays the same.

Thus,

Numerator = 3 x 1 +1 = 4

Denominator = 3

Fraction = 4/3

Hope this helps.

What is the perimeter of this shape? A. 16 cm B. 18.5 cm C. 34 cm D. 37 cm

Answers

 the answer is C. 34 cm
the answer is c. 34cm add the lengths of all sides

Which pairs of polygons are congruent?

Answers

Answer: The polygons are congruent when they are the mirror image of each other. They are equal in shape and size. They have equal number of sides. All the corresponding sides and corresponding angles are equal.  It is different from similar polygons which have same shape but not necessary to have same size.

Congruent means the same so all you need to do is find the pair of polygons that look identical or the same.